SIMPLEDRIVE 80GB USB/FW PORT (STI-U2F25/80) 80GB capacity FireWire, i.LINK & 1394 compatible OHCI & SBP-2 compliant External 6-pin 1394 ( FireWire ) receptacle - Serial bus data transfer rates of 100, 200, and 400 MB/sec One external B 4-pin Hi-Speed USB 2.0 - 1.1 receptacle - Serial bus data transfer rates up to 480 Mb/sec