Summary: This is an alteration to my last review. The issue I was having with it dropping connection and not being recognized was a USB 2.0 issue. I moved it to a USB 3.0 port and have not had a drop in 10s of hours since.
Summary: I have my PC set to not power off, and I have the adapter in control of it's power, but this "adapter" has randomly kicked off multiple times in the course of three hours of use. Honestly don't know if this is a Windows 8.1 issue or a Buffalo issue, but they have poor support documentation, so I have to blame the device.