Brand: Western Digital. Cache Memory in Mb: 8. Dlna Compliant: Yes. External Hard Drive Size: 2.5". Features of Product: Instantly add portable storage for all your business files, music, video, and games with a WD passport essential portable USB hard drive. Compact drive fits easily in pocket or purse , weighs a ounces and holds a ton of data. Powered directly through the USB cable, so needs no power adapter. WD understands the importance of the information on the drive so they have designed an elegant rugged enclosure to protect it. Includes Sync and encryption software for the PC user and Google Software to save your important files. Back up your existing notebook hard drive for extra data safety. Ftpserver Included: No. Internal Hard Drive Size: N/A. Mediaplayer Included: No. Networking Capability: None. One Touch Backup Button: No. PC Interface: USB 2.0. Printserver Included: No. Product Depth: 12.6 cm. Product Height: 1.5 cm. Product Weight: 0.18. Product Weight Units: kg. Product Width: 7.9 cm. Remote Access: No. Slave USB Connection: Yes. Speed in Rpm: 5400. Storage Capacity (GB): 320. Storage Capacity in Gb: 320. Storage Type: Solid-State Memory. USB Host Powered: Yes-Single port. Wireless Capability: No.