... :5400rpm Detailed Product Description1.HDD Capacity:20GB,Size:2.5'' 2.Interface Type:SATA 3.Speed:5400rpm 4.Model ... ,320gb,500gb,1 tb,2tb, 3tb desktop hdd2.5 inch 20gb,40gb,60gb,80gb,120gb,160gb, 250gb ,320gb,500gb ... details: size 488*266*203mm, gross weight about 6.5-7.0kgs per cartonHDD 20GB SATA 5.4K ... hard disk drive 20GB HDD 5.4k 2.5inch ST920217AS for Seagate 2.5 inch 250GB for laptop HDD harddisk