win7系统默认不支持USB3.0设备，需要安装额外驱动来支持。

旧一点的CPU:

https://downloadcenter.intel.com/download/21129/USB-3-0-Driver-Intel-USB-3-0-eXtensible-Host-Controller-Driver-for-Intel-7-Series-C216-Chipset-Family

新一点的CPU:

https://downloadcenter.intel.com/download/22824/Intel-USB-3-0-eXtensible-Host-Controller-Driver-for-Intel-8-9-100-Series-and-Intel-C220-C610-Chipset-Family?product=65855

Macbook pro (Late 2013)装了virtualbox, 里面跑一个32位的win7, win7里装上面这个驱动是可以用的。