Buffalo LinkStation Mini 500 GB. Total storage capacity: 500 GB, Hard drive capacity: 250 GB, Hard drive interface: Serial ATA. Networking features: Fast Ethernet. Power requirements: AC 100 - 240 V 50/60 Hz, Power consumption (typical): 10 W. Weight: 500 g. Compatible operating systems: Windows Vista, XP, 2000 Mac OS 10.3.9 +