Verbatim 160GB USB Portable Hard Drive (USBFLB160) Durable, palm-sized 160 GB 2.5-inch USB 2.0 portable hard drive for easy back-ups 400Mbits/sec transfer speed; powers via USB connection; Mac and PC compatible Constructed with a ultra-rugged magnesium alloy housing CMS BounceBack Express Backup Software for easy data backup 1-year limited warranty