Seagate Momentus 5400 250GB 5400RPM SATA 3Gb/s 8MB Cache 2.5 Inch Internal NB Hard Drive ST9250315AS-Bare Drive (Amazon Frustration-Free Packaging) 5,400 RPM Spin Speed, 8 MB Cache Buffer, SATA 3Gb/s interface with Native Command Queuing,250 GB Capacity Support for Read Multiple and Write Multiple commands 1000 Gs of nonoperating shock make the drive ideal for notebook PCs and industrial applications. Robust design and high shock tolerance enable mobility in rugged operating environments. Ships in Certified Frustration-Free Packaging. Two Year Warranty 5,400 RPM Spin Speed, 8 MB Cache Buffer, SATA 3Gb/s interface with Native Command Queuing,250 GB Capacity Support for Read Multiple and Write Multiple commands 1000 Gs of nonoperating shock make the drive ideal for notebook PCs and industrial applications. Robust design and high shock tolerance enable mobility in rugged operating environments. Ships in Certified Frustration-Free Packaging