HDD External Toshiba StorE Alu2 320GB USB2.0 PX1623E-1HC2

Rotational speed: 5400 rpm 
Data Buffer: 2 MB (@ ; 250 GB) 
On-bus power: Up to 5 W 
Formatted capacity: 320 GB 
Form factor: 2.5'' 
Power Supply: USB power/data connection 
System Requirements: Microsoft® Windows®, XP/Vista/Windows 7, 1 x USB port 
Box content: USB cable 
Quick start guide 
User's manual (pre-installed on the hard drive) 
Warranty leaflet 
Main Features: High speed USB 2.0 
Low power consumption 
Solid aluminium casing 
Certifications: CE, NCRS, SASO, GOST (3.5”), RoHS 
USB Interface: High Speed USB 2.0 
Dimensions (mm): 129 (H) x 14 (W) x 74 (L) 
Interface Transfer rate: Up to 480 Mbps 
Weight (g): 175g