The Seagate Barracuda ST1000LM048 2.5" internal hard drive has a storage capacity of 1TB. It has 6 Gbps SATA interface for fast execution and easy installation. This HDD runs at a spindle speed of 5400 rpm and is suitable for notebook, desktop PC and storage system. Internal hard drive is for standard laptop, mobile storage, external storage systems and ultra-slim desktop PCs. Dimensions: 0.27"H x 2.7"W x 3.9"D. Storage capacity: 1TB. Interface/ports: SATA 6 Gbps. Sustained data transfer rate: 140 MBps. Spindle speed: 5400 RPM. Cache: 128MB. Drive width: 2.5". Power: 1.6 W/1.7 W (read/writer), 0.45 W (idle). 15mm z-height enables slimmer all-in-one desktop PC drives while helping reduce system heat generation and vibration. Temperature: 5 to +55 deg C (operating),-40 to +70 deg C (non operating). Weight: 0.198 lbs. Comes with 2 years limited warranty.