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
Top Comments
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.
Community Reviews
This Cable Matters USB C cable stands out as a certified long run for high bandwidth and up to 240W charging, with community confidence that the 4.9 foot length is legitimate for USB4 80Gbps use. The cable is described as well made, reliable, and a good value for a name brand certified option, especially versus cheaper non certified alternatives. It is also framed as suitable for demanding setups like a 4K 160Hz monitor. The main caveat is certification confusion, since the listing shows USB IF verification and Thunderbolt compatible wording rather than a Thunderbolt logo or full Thunderbolt certification.
Common Questions (4)
No. USB-IF certification is not the same as Thunderbolt certification, and this listing says Thunderbolt compatible rather than Thunderbolt certified. A cable can still work with Thunderbolt hardware if it meets the USB4/40Gbps+ passive cable requirements.
Yes, the 4.9ft length is described as legitimate for a certified 40/80Gbps USB-C cable, and 1.5m certified cables have existed recently. The USB-C spec table's length guidance is informative rather than a hard ban, so this length can still meet the performance requirements.
The 4.9ft version may be covered through a different certification path or manufacturer listing; support reportedly gave TID 12667 and said certification is being handled through another manufacturer while they work through their own USB VID. That explains why the exact 4.9ft entry may not appear where expected.
It may work, but that depends on the device chain and required bandwidth. One practical approach is to test it with the monitor and use Amazon returns if it does not handle the 4K 160Hz setup.
AI-generated summary based on comments from the community. Updated ago
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25 Comments
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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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