LaCie Bigger Disk Extreme 2TB. Hard drive capacity: 2000 GB, Hard drive rotational speed: 7200 RPM, Hard drive interface: FireWire 800. RAID levels: RAID 0 / 1. Weight: 5000 g. Minimum system requirements: FireWire 800 (9-pin) equipped computer FireWire 400 (6-pin) or iLink (4-pin) , Power requirements: External power supply, Write seek: 10 ms