Manufacturer: Storage Appliance Corporation Manufacturer Part Number: HD325 Manufacturer Website Address: www.goclickfree.com Brand Name: Storage Appliance Product Model: HD325 Product Name: Clickfree HD325 External Hard Drive Marketing Information: No software to install or setup. Automatically find, organize and backup all our data onto the Clickfree portable backup drive. Works right out-of-the-box. Just plug it in and the backup just starts. Backup multiple computers with one Clickfree portable backup drive! Product Type: Hard Drive Technical Information Storage Capacity: 320 GB Drive Performance Rotational Speed: 5400 rpm Buffer: 8 MB Interfaces/Ports Host Interface: 1 x USB 2.0 USB Physical Characteristics Form Factor: External Compatible Drive Bay Width: 2.5" Hot Swappable: Yes Height: 0.70"