#USBWTF If you thought USB Type-C cables were a complex topic… You have no idea…
Investigating why USB-version connections differ with multiple full-featured, and tested, USB Type-C↔︎C cables.
Cable A: USB-IF *certified*, passive Thunderbolt 3/4, USB4 Gen 3, 40GiBit/s
- Actual connection: USB 3.2 Gen2 SuperSpeed+, aka USB 10GiBit/s. Yes, renamed *again*.
- R: 1000MiB/s
- W: 700MiB/s
Cable B: not-certified, same specs as A
- Actual connection: USB 4 Gen 3
- R: 5.2GiB/s
- W: 4.8GiB/s
MacLemon
npub1ed…ayctx
2025-11-17 11:15:50 UTC
Author Public Key
npub1ednec0fn4wv0g4vvwkdp4zewecdm4a8fxg8k88na9tn3rk6yw68szayctxSeen on
wss://relay.ditto.pubPublished at
2025-11-17 11:15:50 UTCEvent JSON
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"content": "#USBWTF If you thought USB Type-C cables were a complex topic… You have no idea…\n\nInvestigating why USB-version connections differ with multiple full-featured, and tested, USB Type-C↔︎C cables.\n\nCable A: USB-IF *certified*, passive Thunderbolt 3/4, USB4 Gen 3, 40GiBit/s\n- Actual connection: USB 3.2 Gen2 SuperSpeed+, aka USB 10GiBit/s. Yes, renamed *again*. \n- R: 1000MiB/s\n- W: 700MiB/s\n\nCable B: not-certified, same specs as A\n- Actual connection: USB 4 Gen 3\n- R: 5.2GiB/s\n- W: 4.8GiB/s",
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