Usb Mode - Buffalo HD-CELU2 DriveStation FlexNet User Manual

Using your DriveStation FlexNet in USB Mode
In USB mode, the mode button will glow red. If it's green, hold it in
for a few seconds, and then release it. The LED will change to red.
In USB mode, the DriveStation functions as a normal external USB
hard drive. It can be accessed from My Computer. By default, it will
receive the next available drive letter and will be named HD-CELU.