AcomData PD320USE-BL 320 GB 2.5 inch Executive Portfolio Portable USB/eSATA Box Contents - AcomData pureDrive Model 761 External Hard Drive, Stand, USB 2.0 cable (USB 1 compatible), AC adapter and power cord, CD (Contains User's Guide and USB 2.0 driver for Win98SE and Win2000-pre SP4), Quick Start Guide, and Warranty Registration Card System Requirements - 233-MHz processor, Windows Vista (Ultimate, Premium, Basic, Business and Enterprise), Windows XP (Home, Pro, pro x64, Media Center and Tablet PC), Windows 2000, Windows ME, Windows 98SE, Mac G3, G4, G5 or Intel processor, Mac OS 10.2 or later, Free USB 2.0, USB 1.1 port or a free eSATA port