Ultron 2.5" Black2Safe Enclosure. Supported storage drive interfaces: Serial ATA II, Storage drive size: 6.35 cm (2.5"). Interface: USB 2.0/eSATA. Colour of product: Black, Material: Aluminium, Certification: CE, FCC, RoHS. Compatible operating systems: Windows 2000/XP/Vista Mac 10.2 + Linux. Weight: 130g