Question: are usb c and thunderbolt 3 interchangeable?
Answer: That means you can use any Thunderbolt 3 cable as a USB-C cable, and any Thunderbolt 3 port can use a USB-C cable. But USB-C cables vary. Thunderbolt 3 can transfer data up to 40 Gbps – you can get this speed with official Thunderbolt 3 cables or a good-quality USB-C cable that's less than about 1.6 feet in length.