WD  80 GB Passport 2.5-inch External Hard Drive Form Factor - External Dimensions WxDxH - 5.68" x 3.51" x 0.83" Weight - 1.6 lb Dimensions WxDxH - 5.68" x 3.51" x 0.83" Dimensions WxDxH - 5.68" x 3.51" x 0.83"