While Thunderbolt 4 mandates a minimum link speed of 32 Gbps for devices, USB4 devices can operate with a lower minimum speed of 20 Gbps. Additionally, Thunderbolt 4 requires double the minimum ...
particularly on data-transfer speed—with USB-C maxing out at 10Gbps (usually 5Gbps) compared to the 40Gbps of Thunderbolt 3 and 4. More like Thunderbolt than USB-C, USB4 can be either 20Gbps or ...