SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/aplus-usb4-80

What top speed does USB-IF list for USB4 over certified cables?

80 Gbps over certified USB Type-C cables.

Start playing free

  1. 10 Gbps
  2. 80 Gbps ✔
  3. 20 Gbps

Why: USB4 can reach up to 80 Gbps over 80 Gbps certified cables that use the USB Type-C connector. It doubles the maximum aggregate bandwidth of USB and is built on the Thunderbolt protocol.

Huh, didn't know that: USB4 is based on the Thunderbolt protocol specification contributed by Intel.

The dad joke
What did the teacher say to the Disney insect learning to use a computer mouse? 'Jiminy, click it!'
Like this card?
Play the game

References

Answer: 80 Gbps. USB4 can reach up to 80 Gbps over 80 Gbps certified cables that use the USB Type-C connector. It doubles the maximum aggregate bandwidth of USB and is built on the Thunderbolt protocol.

  1. USB4, USB Implementers Forum www.usb.org/usb4
    up to 80 Gbps operation over 80 Gbps certified cables
    Checked 2026-10-10.
  2. USB4, USB Implementers Forum www.usb.org/usb4
    Based on the Thunderbolt™ protocol specification contributed by the Intel Corporation
    Checked 2026-10-10.

Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.

Test yourself in the game

Tech & GadgetsWhat minimum bandwidth does Intel list for Thunderbolt 4?Tech & GadgetsWhich TCP port does Secure Shell (SSH) use by default?Tech & GadgetsWhich port does SMTP use by default to send and relay email?

That's stuff everyone should know.