WD  WDXE3200JBN 320GB Net Center External Hard Drive Form Factor - External Dimensions WxDxH - 2.2" x 9.4" x 5.9" Weight - 1.6 lb Dimensions WxDxH - 2.2" x 9.4" x 5.9" Dimensions WxDxH - 2.2" x 9.4" x 5.9"