Thecus i8500/4TB. Total storage capacity: 4000 GB, Hard drive capacity: 1000 GB, Maximum capacity: 16 TB. Processor family: Intel XScale. Compatible operating systems: Windows NT/XP/2003/Vista Mac 9.1 OSX/OSX Server/XSERVE. Dimensions (WxDxH): 428 x 586 x 90 mm