Seagate 500GB Barracuda 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5' Laptop Internal Hard Drive ST500LM030 Broadest 2.5-inch hard drive portfolio with up to 5TB capacity and both 7mm and 15mm form factors suitable for a variety of compute applications. Thinnest and lightest 2.5-inch hard drive with up to 2TB storage in a 7mm z-height, providing seamless upgrades of thin and light laptops and smaller form factor systems. Fast data rates of up to 140MB/s enables superior PC end-user experience and snappier file transfers. Dimensions Form Factor 2.5' Height (maximum) 7mm Width (maximum) 69.85mm Length (maximum) 100.35mm