LaCie Hard Disk 500 GB FireWire 400/USB 2.0/eSATA External Hard Drive, Design by Neil Poulton 301313U 500 GB external hard drive features a stunning design by Neil Poulton Triple interface includes 1 x Hi-Speed USB 2.0, 1 x eSATA, 2 x FireWire 400 Fanless design allows for near silent operation Includes one-year online backup service providing unlimited off-site backup storage Measures 4.6 x 1.8 x 7.6 inches (WxHxD)