Firewire removable storage in the form of 5.2 gig DVD RAM. This drive works well and is in mint shape. I don't use it since I bought a back up hard drive. I use it with a Macintosh, but it is PC compatible. As for the compatibility with various Windows versions, I can't help you. Que! has a great web site for info. Will include on 5.2 gig cartridge, fire wire cable, power cord.