Buffalo  DriveStation Combo4 500 GB Desktop External Hard Drive USB 2.0/FireWire 800/400/eSATA HD-HS500Q DriveStation Combo4; USB 2.0 Cable ;Setup CD Rom with Memeo Backup Software; FireWire 400/800 (IEEE 1394a) Cable; AC Adapter;Warranty Statement TurboUSB, FireWire 400/800 and eSATA! Connect with any laptop or PC and Mac. Fast transfer speeds! 500GB pre-formatted Connect your PC with USB 2.0, FireWire 400/800 or eSATA Unique "Heat Sink Chassis" keeps internal parts cool TurboUSB, Memeo AutoBackup, SecureLockware-with the SecureLock Encryption Software for Windows PC Prevents Unauthorized Access to Data