Sorry, my head wasn't working. Here we go:
Windows 95 Gold: version 4.00.950 - No USB Support
Windows 95 OSR1 aka Win95A: version 4.00.951 with Service Pack 1 - No USB Support
Windows 95 OSR2 aka Win95B: version 4.00.1111 - no immediate USB Support, but USB Support can be installed with USBSUPP.EXE
Windows 95 OSR2.1: version 4.00.1111 with USBSUPP.EXE installed, limited USB device support.
Windows 95 OSR2.5 aka Win95C : version 4.00.1212 with USBSUPP.EXE installed, same as OSR2.1
Windows 95 OSR2.5: version 4.00.1214 with USBSUPP.EXE and USBSUPP2.EXE installed: revised support for USB...supposed to work better.
What a mess. There's only basic keyboard, mouse, scanner and printer support. Hard drives MIGHT work, but no guarantees.