Thunderbolt 2 (第2代) 的頻寬是20 Gbit/s還是40 Gbit/s?
20 Gbit/s
Below is an instruction that describes a task. Write a response that appropriately completes the request. ### Instruction: Thunderbolt 2 (第2代) 的頻寬是20 Gbit/s還是40 Gbit/s? ### Response: 20 Gbit/s 