Cable Matters via Amazon has 4.9' Cable Matters USB-IF Certified 80Gbps 240W USB 4 Thunderbolt Cable (Black) on sale for $19.99. Shipping is free with Prime or on $35+ orders.
Thanks to Community Member violentleaf for sharing this deal.
Details:
USB-IF verified: Meets highest USB4 standards for reliable performance
Maximum specs: Up to 80Gbps bandwidth, 8K@120Hz video, 240W charging (PD 3.1 EPR)
Thunderbolt compatibility: Fully supports Thunderbolt 5, 4, and 3 (up to 80Gbps)
Blazing-fast data transfer: 80Gbps on USB4 devices; backward compatible with 20Gbps USB4 and older USB standards (3.2/3.1/3.0/2.0)
Video support: DisplayPort Alt Mode enables 8K@120Hz and 4K@480Hz for monitors, docking stations, gaming, editing, and streaming
High-power charging: 240W USB PD 3.1; backward compatible with 140W adapters (e.g., Apple, iPad Pro/Air) for fast charging of power-hungry devices
Broad device compatibility: Works with MacBook, USB-C/Thunderbolt laptops, tablets, and other USB-C or Thunderbolt-enabled electronics
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Cable Matters via Amazon has 4.9' Cable Matters USB-IF Certified 80Gbps 240W USB 4 Thunderbolt Cable (Black) on sale for $19.99. Shipping is free with Prime or on $35+ orders.
Thanks to Community Member violentleaf for sharing this deal.
Details:
USB-IF verified: Meets highest USB4 standards for reliable performance
Maximum specs: Up to 80Gbps bandwidth, 8K@120Hz video, 240W charging (PD 3.1 EPR)
Thunderbolt compatibility: Fully supports Thunderbolt 5, 4, and 3 (up to 80Gbps)
Blazing-fast data transfer: 80Gbps on USB4 devices; backward compatible with 20Gbps USB4 and older USB standards (3.2/3.1/3.0/2.0)
Video support: DisplayPort Alt Mode enables 8K@120Hz and 4K@480Hz for monitors, docking stations, gaming, editing, and streaming
High-power charging: 240W USB PD 3.1; backward compatible with 140W adapters (e.g., Apple, iPad Pro/Air) for fast charging of power-hungry devices
Broad device compatibility: Works with MacBook, USB-C/Thunderbolt laptops, tablets, and other USB-C or Thunderbolt-enabled electronics
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
Deal History
Deal History includes data from multiple reputable stores, such as Best Buy, Target, and Walmart. The lowest price among stores for a given day is selected as the "Sale Price".
Sale Price does not include sale prices at Amazon unless a deal was posted by a community member.
I actually contacted their support team about this. According to them, The TID for this cable is 12667. They are licensing it through this other manufacturer but are working through certification with their own USB VID.
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.
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.
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.
Our community has rated this post as helpful. If you agree, why not thank violentleaf
Quote
from mozillaf
:
I'm looking at usb.org I see the USB-IF certification for the 3.9ft cable, but not the 4.9ft. Am I missing something?
I actually contacted their support team about this. According to them, The TID for this cable is 12667. They are licensing it through this other manufacturer but are working through certification with their own USB VID.
what a pleasant thread. People recognizing that a SD isnt just the cheapest no-name part, but a name brand, certified high quality product for a reasonable price. I will be getting one as well. I have several cable matters USB-IF certified cables and they all are well made and perform well.
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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.
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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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Our community has rated this post as helpful. If you agree, why not thank violentleaf
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