Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: IS IT WIN 8.1 COMPATABLE?
Document: Quick delivery and reasonabl price. Works with both Windows 7 64bit pro and 8.1 64bit home. It is like the old days reading a 1.44 disk meaning it is slow even on USB 3
Fast shipping right it away, perfect service. I tested with external usb 3.5 floppy disk drive, does not need a driver for windows 7,8.1, they are built in windows 7, 8.1. for windows 95-98 and windows xp that request with cd rom driver. thank you
The drive was able to read and write to an 11 year old floppy disk with no issue.The drive worked as a "plug-and-play" device (no driver installation necessary) on:Windows 7 x86 (32-bit)Windows 7 x64 (64-bit)Mac OS X 10.8.4The drive was NOT plug-and-play on a standard install of Debian Wheezy (7.1). Purchased from the seller "Patuoxun."
After using the drive for about 8 - 10 discs, it started reporting that the disk was not formatted. After trying about 15 or 20 more discs, it would read one occasionally, but after about 30 discs read, it apparently jammed, and another disc could not be inserted. THIS IS A PIECE OF JUNK AND SHOULD NOT BE LISTED ON AMAZON!!!! !
This 3.5 external disk drive works as advertised. i HOOKED IT UP AND IT RAN PERFECTLY IN EVERY RESPECT. iT'S ok
Worked very well for intended purpose, reading old 3 1/2 disks.Easy to use, just plug and play. Nicely compact. Easy to eject diskettes.
I had some old 3-1/2 floppies I wanted to get files from, got this drive, got the files ok (couldn't read them tho because they were old Reflex files and nothing would open them. I got this drive as a disposable unit - got my files, gave the drive away.
The A drive just shows up. I tested a number of old floppies including the oldest that I have which go back to 1997 (16 years) and it read them all without a problem. All my floppies are HD 1.44MB so I can't speak on how well it would work for 720k or 2.0MB floppies. For my purposes,  it worked great.
This was an easy and inexpensive solution to help my wife transfer a bunch of old pictures from Kodak that were on 3 1/2 inch floppy disk. It was shipped promptly, packaged safely and seems to be of good quality..I plugged it in to a USB port and it was immediately recognized and usable. Hard to think of anything negative except now that the pictures are transferred it will probably never be used again.
I have boxes full of old 3.5" floppies including many from a deceased family member that I wanted to review and possibly save a few files to hard drive. Other than that there is no realistic use for having a 3.5" drive on a regular basis. So if it survived the task of letting me review a hundred or so disks the $13 price will have been well worth it.Comments:1. Surprisingly nice quality of construction2. Installed itself under Win 7 in a few seconds3.
Answer: I use it with 7.1 without any trouble whatsoever; can't see why there would be any difference.  Think about it: Any computer older than that would probably have a floppy port built in, right?, no need for an external one.