1TB 2.5" Hard Drive for Dell Alienware M11x, M11xR2, M11xR3, M14x, M15x, M17x, M17xR2, M17xR3 Laptops Interface: SATA, Capacity: 1000GB, RPM: 5400RPM, Cache: 8MB, Size: 2.5 Inchs, 3.0Gb/s Package Include: 1000GB 5400RPM Hard Disk Drive This Product Has 3 Years Warranty And 14 Days Money Back Guarantee