LaCie Classic HD. Hard drive rotational speed: 5400 RPM, Supported file systems: FAT32, HFS+, NTFS. Image formats supported: BMP, GIF, PNG, Video compression formats: ASF, AVI, DAT, DivX, DVR-MS, MKV, MP4, MPEG, VOB, WMV, Subtitle formats supported: ASS, PSB, SMI, SRT, SSA, SUB. Weight: 0.95 kg. Minimum system requirements: Computer with an Ethernet network adapter Ethernet switch or router, Minimum hard disk space: 600 MB. Dimensions (WxDxH): 117 x 193 x 45 mm, Compatible operating systems: Windows XP/Vista/Vista 64-bit/7 Mac OS X 10.4/10.5/10.6 Linux 2.6, Hard drive capacity: 1000 GB