HDD 500 GB, WD5003ABYX-P SATA2 64MB 7200RPM PULL

HDD 2 TB, WD23PURZ SATA-3 , IntelliPower rpm, 256 MB 5400rpm PURPLE

SuperSpeed USB 3.0 HDD access to your files – 10 times faster than USB 2.0 , Backward compatible with USB 2.0 , Supports 3.5” and 2.5″ SATA hard disk drives of any capacity, Specifications, Supports USB 3.0, compatible with USB 2.0/1.X interface, SATA II, Supports Serial ATA 3.5″ or 2.5″ hard drives, Chipset: ASM1153, Backup button, AC-DC adapter: 100 – 240 V AC, 50 – 60 Hz input, 12 V DC, 2 A output, Material: plastic, Net weight: 0.213 kg, Dimensions: 165 x 112 x 100 mm, System requirements, Windows 2000/XP/Vista/Windows 7/8, A free USB port, For the best performance USB 3.0 port is required