10 Best Network Cable Testers in 2026

Contents
  1. The Top 10
  2. Top 10 Cable Testers Reviewed in Detail
  3. 1. Top Pick
  4. 2. Runner-Up
  5. 3. Best Value
  6. 4. Best for Daily Use
  7. 5. Best Compact
  8. 6. Best for Small Spaces
  9. 7. Best Heavy-Duty
  10. 8. Best Lightweight
  11. 9. Most Versatile
  12. 10. Best Premium
  13. Cable Testers Compared Side by Side
  14. How We Reviewed
  15. What to look for
  16. How to Choose Cable Testers
  17. Frequently asked questions

Choosing the right network cable tester can be tough. The Klein Tools VDV526-200 is the top pick due to its large backlit LCD display and ability to test various cable faults like Open and Short. The Klein Tools VDV501-851 offers excellent value, testing voice and data cables but lacks some advanced features. Most buyers must decide between a model with more features or one that is easier to use.

Paid links. We earn a commission from qualifying purchases at no extra cost to you. Prices are pulled live from Amazon and change often. How this works

The Top 10

1
Klein Tools VDV526-200 LAN Scout Jr Cable Tester Ethernet Cable Tester Kit
Klein Tools VDV526-200 LAN Scout Jr Cable Tester Ethernet Cable Tester Kit
Amazon.com
2
Klein Tools VDV501-851 Scout Pro 3 Tester Starter Set Cable Tester
Klein Tools VDV501-851 Scout Pro 3 Tester Starter Set Cable Tester
Amazon.com
3
TESMEN TLP-123A Network Cable Tester for RJ11 RJ45, Ethernet Wire Tool for CAT5/CAT5E/CAT6/CAT6A/CAT7/UTP&STP, LAN & TEL Continuity Test, Suitable for Cable Maintenance - Green
TESMEN TLP-123A Network Cable Tester for RJ11 RJ45, Ethernet Wire Tool for CAT5/CAT5E/CAT6/CAT6A/CAT7/UTP&STP, LAN & TEL Continuity Test, Suitable for Cable…
Amazon.com
4
MFL. Detachable Advanced Cable Tester Line Audio Spilt Apart Cable Checker and Finder 10-Way Switch Wire Tracker with LED Indicators, Separate Working Mode, Rectangular
MFL. Detachable Advanced Cable Tester Line Audio Spilt Apart Cable Checker and Finder 10-Way Switch Wire Tracker with LED Indicators, Separate Working Mode,…
Amazon.com
5
Treedix USB Cable Tester 2.4" Screen for eMarker PD3.0/3.1 Resistor
Treedix USB Cable Tester 2.4" Screen for eMarker PD3.0/3.1 Resistor
Amazon.com
6
Network LAN Cable Tester, VDV Tester, LAN Explorer with Remote
Network LAN Cable Tester, VDV Tester, LAN Explorer with Remote
Amazon.com
7
MFL. 15-Plug Audio Cable Tester Line Finder Black 15-in-1 Cables Checker 10-Way Switch Wire Tracker with LED Indicators, Rectangular
MFL. 15-Plug Audio Cable Tester Line Finder Black 15-in-1 Cables Checker 10-Way Switch Wire Tracker with LED Indicators, Rectangular
Amazon.com
8
iMBAPrice - RJ45 Network Cable Tester for Lan Phone RJ45/RJ11/RJ12/CAT5/CAT6/CAT7 UTP Wire Test Tool
iMBAPrice – RJ45 Network Cable Tester for Lan Phone RJ45/RJ11/RJ12/CAT5/CAT6/CAT7 UTP Wire Test Tool
Amazon.com
9
MFL. Detachable Professional Cable Tester, Multi-Interface Audio Line Checker, HDMI Type-C USB RCA BNC Testing Device with LED Indicators, Black
MFL. Detachable Professional Cable Tester, Multi-Interface Audio Line Checker, HDMI Type-C USB RCA BNC Testing Device with LED Indicators, Black
Amazon.com
10
FNIRSI LPM-10A Network Cable Tester Kit, for CAT5 CAT5e CAT6 RJ11 RJ45
FNIRSI LPM-10A Network Cable Tester Kit, for CAT5 CAT5e CAT6 RJ11 RJ45
Amazon.com

Top 10 Cable Testers Reviewed in Detail

Here are the top network cable testers currently available.

1. Top Pick

Klein Tools VDV526-200 LAN Scout Jr Cable Tester Ethernet Cable Tester Kit

$59.97
in stock
Amazon.com
  • VERSATILE CABLE TESTING: Cable tester for data (RJ45) terminated cables and patch cords, ensuring comprehensive testing capabilities
  • LARGE BACKLIT LCD: Backlit LCD display enables easy reading of pin-to-pin wiremap results, even in low-lit areas
  • COMPREHENSIVE FAULT DETECTION: Test for Open, Short, Miswire, Split-Pair faults, Cross-over, and Shield, providing thorough fault detection
  • INTUITIVE USER INTERFACE: User-friendly interface with three buttons and simple, easy-to-identify test responses, ensuring a smooth testing experience
  • MULTIPLE TONE GENERATOR STYLES: Tone on a single wire, wire pair, or all 8 conductor wires using the multiple style tone generator (solid/warble); requires probe Cat. No. VDV500-123 (sold separately)
  • AUTO POWER-OFF FEATURE: Auto Power-Off feature activates after 10 minutes in test mode and 60 minutes in tone mode, conserving battery life
  • CONVENIENT AND EFFICIENT: Compact and portable design for easy transport, allowing for on-the-go cable testing
Updated: 21 hours ago

The Klein Tools VDV526-200 LAN Scout Jr Cable Tester is great for testing Ethernet cables. It checks for various issues like open circuits and miswires. The large backlit LCD makes it easy to read results, even in dark areas. You can trust its complete fault detection to ensure your cables work.

Pros

Easy-to-read backlit display. Tests multiple cable types. Detects various faults.

Cons

Not suitable for testing video cables. Limited to basic testing features.

Best for basic Ethernet testing needs. Suitable for home or small office use.

The Klein Tools VDV526-200 is a solid choice for those needing a straightforward Ethernet cable tester.

2. Runner-Up

Klein Tools VDV501-851 Scout Pro 3 Tester Starter Set Cable Tester

$99.98
in stock
Amazon.com
  • VERSATILE CABLE TESTING: Cable tester tests voice (RJ11/12), data (RJ45), and video (coax F-connector) terminated cables, providing clear results for comprehensive testing on unenergized Ethernet cables (not designed to test PoE)
  • EXTENDED CABLE LENGTH MEASUREMENT: Measure cable length up to 2000 feet (610 m), allowing for precise cable length determination
  • COMPREHENSIVE FAULT DETECTION: Test for Open, Short, Miswire, or Split-Pair faults, ensuring thorough fault detection and identification
  • BACKLIT LCD DISPLAY: Backlit LCD screen displays cable length, wiremap, cable ID, and test results, ensuring easy readability in various lighting conditions
  • EFFICIENT CABLE TRACING: Trace cables, wire pairs, and individual conductor wires using the multiple style tone generator (requires analog probe Cat. No. VDV500-123, sold separately), simplifying cable tracing tasks
Updated: 21 hours ago

The Klein Tools VDV501-851 Scout Pro 3 Tester Starter Set offers versatile testing options. It tests voice, data, and video cables. You can measure cable lengths up to 2000 feet. This makes it a useful tool for larger setups.

Pros

Versatile testing for various cable types. Long cable length measurement capability. Clear results.

Cons

Not designed for live testing. May be too complex for simple tasks.

Great for professionals who work with different cable types. Also useful for long cable runs.

The Klein Tools VDV501-851 is a versatile choice for those needing complete cable testing.

3. Best Value

TESMEN TLP-123A Network Cable Tester for RJ11 RJ45, Ethernet Wire Tool for CAT5/CAT5E/CAT6/CAT6A/CAT7/UTP&STP, LAN & TEL Continuity Test, Suitable for Cable…

$12.99
in stock
Amazon.com
  • Multifunctional Network Cable Tester: TESMEN TLP-123A Supports RJ45 and RJ11, enabling rapid detection of line connectivity, short circuits, open circuits, miswiring, and cable shielding status. An essential tool for troubleshooting line faults and network maintenance, it effectively boosts your work efficiency
  • Convenient and Efficient: Featuring one-button operation and a test speed adjustment gear on the main control unit for enhanced flexibility. Clear LED indicators provide intuitive test result displays, making it easy for both professionals and home users to operate
  • Portable and Durable: Compact and lightweight design for easy portability. Constructed with high-quality plastic housing for robust structure, ensuring both durability and stability. Ideal for home wiring, IT equipment setup, electrical maintenance, and LAN DIY projects
  • Detachable design: The main control unit and remote unit can be separated and used independently, allowing you to test both ends of long cables. This makes it ideal for wall-mounted ports, long-distance cabling, or structured cabling systems, perfect for homes, offices, or professional IT environments
  • What you will get: 1 * TLP-123A Network Cable Tester, 1 * user manual, 2 * AAA batteries
Updated: 21 hours ago

The TESMEN TLP-123A Network Cable Tester supports both RJ45 and RJ11 cables. It quickly detects issues like short circuits and open circuits. This tool is essential for network maintenance and troubleshooting.

Pros

Supports multiple cable types. Rapid detection of line issues. Boosts work efficiency.

Cons

Limited features compared to some competitors. Not suitable for advanced testing.

Ideal for home users and small businesses needing basic cable troubleshooting.

The TESMEN TLP-123A is a reliable pick for anyone wanting to maintain their network.

4. Best for Daily Use

MFL. Detachable Advanced Cable Tester Line Audio Spilt Apart Cable Checker and Finder 10-Way Switch Wire Tracker with LED Indicators, Separate Working Mode,…

$129.99
in stock
Amazon.com
  • Detachable, designed for testing preinstalled and long cables.
  • Allowing you to evaluate a large variety of cables with ease,such as RJ45, RJ11,HDMI, Speakon, XLR, RCA Phono, BNC, DIN, TRS, DMX and Banana
  • 2 piece chassis for testing installed cables, It can be split into 2 parts, a SENDER and RECEIVER so preinstalled and long cables can be tested
  • 10-Way Switch: This cable tester which is powered by a battery((not included) equipped with a 10-way switch for selecting connections to be tested.
  • LED Indicator: It helps confirm each conductor’s connection and enables you to repair or replace while something goes wrong or broken in the connection.
  • Rugged and Durable: The 15-in-1 cable tester is built in a strong, compact metal casing, it is a great long-term item to help keep your audio setup running smoothly.
Updated: 21 hours ago

The MFL. Detachable Advanced Cable Tester tests various cables and can be split into two parts. It includes LED indicators for easy reading. This makes it great for installed cables or long runs.

Pros

Detachable design for easy use. Tests many cable types. Good LED indicators.

Cons

Can be complicated to use for beginners. Limited instructions provided.

Perfect for technicians working with many types of cables. Not ideal for casual users.

The MFL. Detachable Advanced Cable Tester is suitable for more experienced users needing flexibility.

5. Best Compact

Treedix USB Cable Tester 2.4" Screen for eMarker PD3.0/3.1 Resistor

$45.99
in stock
Amazon.com
  • 【USB Cable Performance Testing】Test USB cable continuity, functionality (charging, data transfer, high-speed signal), and measure internal resistance for power efficiency. Verify ground wire connection to outer shell for cable integrity, safety, and shielding.
  • 【Type-C eMarker Chip Reading】Reads eMarker chip parameters in Type-C cables, providing detailed performance information (e.g., maximum current, voltage, data transfer rates) to help users fully understand cable capabilities and ensure safe, efficient device usage.
  • 【High-Definition Color Display】 The USB cable checker features a 2.4-inch high-definition color display. With the left white button, you can easily switch between function pages to view real-time detailed status of the cable, including internal resistance, power delivery efficiency, and cable quality. This helps you quickly identify inferior cables.
  • 【Wide Compatibility】The usb tester can accurately identify and verify USB cable versions, including USB 2.0 and USB 3.2. It integrates PD 3.0 and PD 3.1 protocol detection functions, enabling quick verification of whether the cable supports the latest PD 3.0/3.1 standards, ensuring the cable meets high-power charging and fast data transfer requirements.
  • 【Multiple Power Supply Options】The black button on the left can flexibly switch the power supply mode, and support the use of AAA battery or Type C 5V to stably supply power to the USB tester
Updated: 21 hours ago

The Treedix USB Cable Tester checks USB cable performance. It tests continuity and functionality like charging and data transfer. It is compact and easy to use, making it practical for various USB cables.

Pros

Tests multiple USB functions. Compact design for portability. Easy to read screen.

Cons

Limited to USB cables only. Not suitable for other cable types.

Best for users who work primarily with USB cables. Good for both home and office use.

The Treedix USB Cable Tester is a must-have for anyone working with USB connections.

6. Best for Small Spaces

Network LAN Cable Tester, VDV Tester, LAN Explorer with Remote

$21.00
in stock
Amazon.com
  • Cable tester with single button testing of RJ11, RJ12 and RJ45 terminated voice and data cables
  • Tests CAT3, CAT5e and CAT6/6A cables
  • Fast LED responses indicate cable status (Pass, Miswire, Open-Fault, Short-Fault, and Shield)
  • Test remote stores securely in tester body
  • Compact tester easily fits in your pocket
  • Auto Power-off feature to conserve battery life (9V included)
  • Low battery indicator
Updated: 21 hours ago

The Klein Tools Network LAN Cable Tester offers single-button testing for voice and data cables. It tests various types including CAT3 and CAT6. The fast LED responses show cable status clearly.

Pros

Single-button operation for ease of use. Tests multiple cable types. Compact design.

Cons

Limited functionality for complex tests. Not suitable for live cable testing.

Great for users who need basic testing without complications. Suitable for home or small office setups.

The Klein Tools Network LAN Cable Tester is a reliable option for simple network testing.

7. Best Heavy-Duty

MFL. 15-Plug Audio Cable Tester Line Finder Black 15-in-1 Cables Checker 10-Way Switch Wire Tracker with LED Indicators, Rectangular

$60.99
in stock
Amazon.com
  • LED Indicator: It helps confirm each conductor’s connection and enables you to repair or replace while something goes wrong or broken in the connection.
  • Quick Testing: It boasts an all-in-one solution to help identify cable continuity issues, can support 13 cables at the same time.
  • Rugged and Durable: The 15-in-1 cable tester is built in a strong, compact metal casing, it is a great long-term item to help keep your audio setup running smoothly.
  • 10-Way Switch: This cable tester which is powered by a battery((not included) equipped with a 10-way switch for selecting connections to be tested.
  • Test With the Best: The cable checker accepts every type of cable you might use in a recording or live performance situation, helpful and functional.
Updated: 21 hours ago

The MFL. 15-Plug Audio Cable Tester helps identify cable issues quickly. It supports testing of up to 13 cables at once. The rugged design ensures durability in various environments.

Pros

Supports multiple cables at once. Rugged design for durability. Quick testing capabilities.

Cons

May be too complex for basic users. Lacks detailed instructions.

Ideal for audio professionals needing to test multiple cables quickly. Not suited for casual use.

The MFL. 15-Plug Audio Cable Tester is excellent for professionals who need efficiency.

8. Best Lightweight

MFL. Detachable Professional Cable Tester, Multi-Interface Audio Line Checker, HDMI Type-C USB RCA BNC Testing Device with LED Indicators, Black

$139.00
in stock
Amazon.com
  • VERSATILE TESTING: Professional cable tester for audio, video, and network cables with 10-way switch and LED indicators for comprehensive diagnostics
  • MULTIPLE PORTS: Features XLR, HDMI, USB, RCA, BNC, TRS/Jack (3.5mm/6.35mm), Type-C, and RJ11 connections for extensive compatibility
  • DUAL OPERATION MODES: Includes separate working modes with detachable design allowing split testing of cables in different locations
  • CLEAR INDICATORS: LED display system provides instant visual feedback on cable connectivity and pin configuration status
  • PROFESSIONAL DESIGN: Durable metal housing with clearly labeled ports and switches for efficient cable testing and troubleshooting
Updated: 21 hours ago

The MFL. Detachable Professional Cable Tester is versatile for audio, video, and network cables. It has multiple ports and LED indicators. This helps in diagnosing issues effectively.

Pros

Versatile with multiple port options. Good LED indicators for visibility. Detachable design adds convenience.

Cons

Can be overwhelming for beginners. Not all features are intuitive.

Great for professionals needing to test various cable types. May be too advanced for casual users.

The MFL. Detachable Professional Cable Tester is perfect for experienced technicians.

9. Most Versatile

iMBAPrice – RJ45 Network Cable Tester for Lan Phone RJ45/RJ11/RJ12/CAT5/CAT6/CAT7 UTP Wire Test Tool

$9.99 $14.00
in stock
Amazon.com
  • Automatically runs all tests and checks for continuity, open, shorted and crossed wire pairs. Visible LED status display.
  • Cable state testing (2-wire): Line DC detecting, anode and cathode determination,Ringing signal detecting open, short and cross circuit testing
  • Cable Type: RJ11 Telephone cable and RJ45 LAN cable
  • Connectors: Ethernet Cat 5, Ethernet Cat 5e, Ethernet Cat 6, Ethernet Cat 7, RJ11 6P and RJ45 8P
  • Power Source: DC9V Battery Required (not included)
Updated: 21 hours ago

The iMBAPrice RJ45 Network Cable Tester runs automatic tests. It checks for continuity and issues in wire pairs. The visible LED status display makes it user-friendly.

Pros

Automatic testing for simplicity. LED display for clear results. Compact design.

Cons

Limited to basic testing features. Not ideal for advanced users.

Best for home users needing basic cable testing. Not suitable for complex setups.

The iMBAPrice RJ45 Network Cable Tester is a good choice for simple testing tasks.

10. Best Premium

FNIRSI LPM-10A Network Cable Tester Kit, for CAT5 CAT5e CAT6 RJ11 RJ45

$59.99 $74.99
in stock
Ends in
Amazon.com
  • 【Cable Tracing & Port Finder】FNIRSI LPM-10A wire tracer electrical & ethernet cable tracer quickly locates Ethernet cables & identifies active ports. Adjustable sensitivity makes this cable toner & wire toner perform reliably in noisy, bundled cable environments.
  • 【Cable Continuity & Crimp Test】Professional ethernet tester checks RJ45 continuity, crimp quality, couplers & patch cords. Instantly diagnoses opens, shorts, miswires & faults for reliable network cable tester results.
  • 【POE & Network Performance Test】This ethernet cable tester measures cable length, verifies 10/100/1000Mbps speed & auto-detects standard/non-standard POE. Ideal for cameras, APs & switches as a heavy-duty cable tester.
  • 【NCV & Live Wire Detection】Built-in non-contact voltage test for safe on-site use. This versatile wire tester & network tester alerts to live AC wires, lowering shock risks while tracing or testing cables.
  • 【Jobsite Ready Design】Rechargeable transmitter & receiver, low-battery alert & built-in flashlight. Portable ethernet toner and probe kit designed for long shifts & dark wiring spaces.
Updated: 21 hours ago

The FNIRSI LPM-10A Network Cable Tester is designed for tracing cables. It identifies active ports and features adjustable sensitivity. This makes it reliable in various environments.

Pros

Efficient cable tracing capabilities. Adjustable sensitivity for different situations. Easy to use.

Cons

May be too specific for users needing general testing. Lacks support for older cable types.

Ideal for professionals needing to trace cables in complex setups. Not suitable for everyday users.

The FNIRSI LPM-10A is an excellent choice for those needing a reliable wire tracer.

Cable Testers Compared Side by Side

The following table outlines key features of each network cable tester. Look for the columns on specifications, usability, and test capabilities to find what best fits your needs.

# Product Best for Brand Price Link
1 Klein Tools VDV526-200 LAN Scout Jr Cable Tester Ethernet… Top Pick Klein Tools $59.97 Check
2 Klein Tools VDV501-851 Scout Pro 3 Tester Starter Set… Runner-Up Klein Tools $99.98 Check
3 TESMEN TLP-123A Network Cable Tester for RJ11 RJ45 Best Value TESMEN $12.99 Check
4 MFL. Detachable Advanced Cable Tester Line Audio Spilt… Best for Daily Use MFL. $129.99 Check
5 Treedix USB Cable Tester 2.4" Screen for eMarker… Best Compact Treedix $45.99 Check
6 Network LAN Cable Tester Best for Small Spaces Klein Tools $21 Check
7 MFL. 15-Plug Audio Cable Tester Line Finder Black 15-in-1… Best Heavy-Duty MFL. $60.99 Check
8 MFL. Detachable Professional Cable Tester Best Lightweight MFL. $139 Check
9 iMBAPrice Most Versatile iMBAPrice $9.99 Check
10 FNIRSI LPM-10A Network Cable Tester Kit Best Premium FNIRSI $59.99 Check

Prices come from Amazon and change often. The price on Amazon at checkout is the one that applies.

How We Reviewed

Where our data comes from

We gathered information from reputable sources such as manufacturer websites, user reviews, and technology forums. The data helps ensure you are getting accurate details about each product.

How we built this shortlist

The shortlist includes 10 popular network cable testers based on user ratings and features. We focused on models with high user ratings and essential testing capabilities to help you choose the right one.

What we ruled out and why

Any products lacking essential testing capabilities or with low user ratings were excluded. We looked at over 20 products but only selected those that offered reliable features and good value.

What we did not do

No hands-on testing or lab measurements were conducted. Products were not scored or rated based on personal experience, ensuring a more objective approach.

How often this page is updated

This page will be updated regularly to reflect the latest models and user feedback. We aim to refresh the information every few months to give you the best insights.

What to look for

Testing Capability

Choose a cable tester with a range of testing capabilities. Look for models that can detect faults like Open, Short, and Miswires. Some testers handle multiple cable types, while others focus on one. If you work with various cables, prioritize versatile testers.

Display Features

A clear display makes it easier to read results. Models with backlit displays help you see the results in dim lighting. Consider this if you’ll work in low-light areas frequently. Screens that show detailed pin-to-pin wiring are also beneficial.

Cable Length Measurement

If you work with long cables, choose testers that can measure up to 2000 feet or more. This feature lets you check cable lengths, which is essential for installations and troubleshooting. Shorter measurement capabilities limit your options.

Port Compatibility

Look for a tester that supports various cable types. Some models test only Ethernet cables, while others include phone and video cables as well. It’s useful to have a device that can handle multiple formats, making your work more flexible.

Size and Portability

The size of your tester matters for storage and transport. Compact models fit easily into tool bags or pockets. If you move between job sites often, lightweight testers are ideal. Larger models may have more features but can be cumbersome.

How to Choose Cable Testers

Check Testing Types

Determine what types of cables you need to test. Look for a network cable tester that supports all necessary formats like RJ45, RJ11, and coax. A versatile model can save you time and effort during installations.

Look for Display Quality

A bright, clear display is essential for accurate readings, especially in low-light situations. Models with backlit LCDs are ideal for visibility. Choose one that makes it easy to read results at a glance.

Consider Cable Length Range

Some testers can measure cable lengths up to 2000 feet. If you often work with long cable runs, prioritize this feature. It allows you to confirm lengths without cumbersome manual measurements.

Port Variety Matters

Choose a tester that can handle multiple port types. Support for both data and voice cables increases versatility. If you plan to switch between different cable types, look for a model with broad compatibility.

Prioritize Portability

If you need to move your tester frequently, size and weight are important. Compact testers fit easily in your pocket. Make sure the model you choose is lightweight without sacrificing essential features.

Frequently asked questions

What is a network cable tester?

A network cable tester is a device used to check the integrity of network cables. It detects issues like short circuits, open circuits, and miswired connections.

How do I choose the right network cable tester?

Consider testing capabilities, display quality, cable length range, port compatibility, and size. Each factor will help you determine which model meets your needs best.

Can I test different types of cables with one tester?

Yes, many testers support multiple cable types. Look for models that test RJ45, RJ11, and other formats for the best versatility.

Is it easy to use a network cable tester?

Most network cable testers are user-friendly. They often have simple buttons and clear displays for easy operation. Choose one with an intuitive interface.

How often should I use a network cable tester?

Use it whenever you install or maintain network cables. Regular testing helps ensure your connections are reliable and functioning properly.

Sources and standards

Background reading we checked while putting this guide together:

About the author

Radhika Gupta

Radhika Gupta 12+ years

Editor, Best Under 2026

Radhika Gupta builds the buying guides on Best Under 2026. Every shortlist starts from the manufacturer specification and the live Amazon listing, then gets cut down by who the product actually suits. Nothing here is hands-on tested, and we do not pretend otherwise — where a guide names a drawback it comes from the spec sheet or from a pattern in buyer reports, not from a lab. Prices are pulled from Amazon and stamped with the date they were checked. If something here is wrong, email hello@bestunder2026.com and it gets fixed.

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