Cavalry Storage CACF Series 250 GB USB 2.0 / Firewire 400 Mobile Solution External Hard Drive CACF35250 Oxford 911 Chipset Capacities 250GB, PATA Interface, Sustained data transfer rates up to 46MB/sec, 10 ms average seek time, 133MB/sec max bus speed USB 2.0 Firewire 400 Contains Maxtor Hard Drive