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popularviolentleaf posted Today 03:26 PM
popularviolentleaf posted Today 03:26 PM

Cable Matters [USB-IF Certified] USB-C 4.9ft 240W 80Gbps USB4 Cable, Thunderbolt 3/4/5/ compatible - $19.99

$20

$22

9% off
Amazon
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This is the best value per length USB-IF certified USB4 80Gbps cable. This is due to the fact that it's the longest passive (no internal signal re-drivers) USB4 cable that is faster than 20Gbps rating. It also certified for 240W power so it will not be a limiting factor for charging.

From the store page:
  • USB-IF Verified for Reliable Performance: The Cable Matters USB4 to USB4 cable is USB-IF Verified, meeting the highest USB4 standards for superior performance. Supporting up to 80Gbps bandwidth, 8K video at 120Hz, and 240W charging, this USB Type-C cable ensures flawless high-speed data transfer and USB PD 3.1 Extended Power Range (EPR) for reliable power delivery. Also compatible with Thunderbolt 5, providing up to 80Gbps bandwidth for cutting-edge performance.
  • Broad Compatibility with Thunderbolt and USB Standards: The USB-C 4 cable is compatible with older USB standards, including USB 3.2, USB 3.1, USB 3.0, and USB 2.0, ensuring maximum versatility. The USB 4 to USB 4 Cable also supports Thunderbolt 5, Thunderbolt 4 and Thunderbolt 3, providing fast and reliable performance for a wide variety of devices, including MacBook and other USB-C or Thunderbolt-enabled electronics.
  • 240W Power Delivery for Fast Charging: This USB C Thunderbolt 4 cable supports USB-C PD 3.1, providing 240W host charging for high-performance devices. This USB C charging cable is backward compatible with Apple 140W USB-C power adapters, iPad Pro, iPad Air, and other 140W USB-C power adapters, ensuring rapid and efficient charging for a variety of power-hungry devices.

https://www.amazon.com/Cable-Matt...B0DW3XZ7WD
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About the Poster
This is the best value per length USB-IF certified USB4 80Gbps cable. This is due to the fact that it's the longest passive (no internal signal re-drivers) USB4 cable that is faster than 20Gbps rating. It also certified for 240W power so it will not be a limiting factor for charging.

From the store page:
  • USB-IF Verified for Reliable Performance: The Cable Matters USB4 to USB4 cable is USB-IF Verified, meeting the highest USB4 standards for superior performance. Supporting up to 80Gbps bandwidth, 8K video at 120Hz, and 240W charging, this USB Type-C cable ensures flawless high-speed data transfer and USB PD 3.1 Extended Power Range (EPR) for reliable power delivery. Also compatible with Thunderbolt 5, providing up to 80Gbps bandwidth for cutting-edge performance.
  • Broad Compatibility with Thunderbolt and USB Standards: The USB-C 4 cable is compatible with older USB standards, including USB 3.2, USB 3.1, USB 3.0, and USB 2.0, ensuring maximum versatility. The USB 4 to USB 4 Cable also supports Thunderbolt 5, Thunderbolt 4 and Thunderbolt 3, providing fast and reliable performance for a wide variety of devices, including MacBook and other USB-C or Thunderbolt-enabled electronics.
  • 240W Power Delivery for Fast Charging: This USB C Thunderbolt 4 cable supports USB-C PD 3.1, providing 240W host charging for high-performance devices. This USB C charging cable is backward compatible with Apple 140W USB-C power adapters, iPad Pro, iPad Air, and other 140W USB-C power adapters, ensuring rapid and efficient charging for a variety of power-hungry devices.

https://www.amazon.com/Cable-Matt...B0DW3XZ7WD

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Model: Cable Matters [USB-IF Certified] 80Gbps USB 4 Cable - 4.9ft, Supports Up to [8K@120Hz / 4K@480Hz Video, 240W Charging, 80Gbps Data Transfer] USB4 Cable, Compatible with Thunderbolt 5/4, MacBook

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Sort: Lowest to Highest | Last Updated 1/29/2026, 04:01 PM
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Today 03:34 PM
4,619 Posts
Joined Jan 2004
exhurtToday 03:34 PM
4,619 Posts
I didn't realize these specs were possible at this length
Today 03:48 PM
2,854 Posts
Joined May 2018
TimlessToday 03:48 PM
2,854 Posts
Yea, this seems impossible. Passive cable length limit is 1 meter.
Original Poster
Today 04:03 PM
24 Posts
Joined Mar 2021
violentleaf
Original Poster
Today 04:03 PM
24 Posts
Quote from Timless :
Yea, this seems impossible. Passive cable length limit is 1 meter.
Per the USB-C specification table that discusses USB Type-C Standard Cable Assemblies that mentions a "≤ 0.8 m" limit for 40Gbps and 80Gbps cables:
The cable lengths listed in the table are informative and represent the practical lengths based on cable performance requirements.

There have existed 1.2m (4ft) certified 40/80Gbps cables on the market for a couple years now. A few 1.5m (4.9ft) cables have been certified in the last year. This cable is completely legitimate.
Last edited by violentleaf January 29, 2026 at 09:13 AM.
Today 04:17 PM
118 Posts
Joined Dec 2017
seattleseahawk12Today 04:17 PM
118 Posts
cable matters is a good quality product. i have several and have never had an issue
Today 04:54 PM
6 Posts
Joined May 2025
FairScene6701Today 04:54 PM
6 Posts
I'm thinking I'll try it, and if I can't get it to work for my 4k160Hz monitor, at least Amazon returns are easy.
Today 05:53 PM
1,414 Posts
Joined Feb 2009
az060693Today 05:53 PM
1,414 Posts
Good price for a certified cable of this length/spec. Cable Matters is legit as well.
You used to be able to look up reviews for Aliexpress cables to see which ones actually met the advertised spec to get them for a bit cheaper but prices have shot up with tariffs and whatnot so it's not really worth it for these USB 4v2/TB5 cables.

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