WD  My Book Studio 320 GB USB 2.0/FireWire 400/800/eSATA Desktop External Hard Drive Product Description My Book Studio Edition WDH1Q3200 - hard drive - 320 GB - FireWire / FireWire 800 USB connection; requires no external power source;128-bit encryption for data security - NOTE: THIS PRODUCT CANNOT BE SHIPPED TO MASSACHUSETTS OR DISTRICT OF COLUMBIA (WASHINGTON, D.C.) Type Hard drive - external Dimensions (WxDxH) 2.1 in x 5.4 in x 6.5 in Weight 2.6 lbs Localization Canada, Latin America, United States Capacity 320 GB WARNING: The solder used in this product contains lead, a chemical known to the State of California to cause birth defects and other reproductive harm. Please wash hands after handling internal components and circuit boards and avoid inhalation of fumes if heating the solder. Interface Type IEEE 1394b (FireWire 800) / IEEE1394 (FireWire) / Hi-Speed USB / eSATA-300