1TB 7200rpm 2.5" Laptop Hard Drive for Dell Alienware M11x M15x M17x M17xR2 Interface: SATA, Capacity: 1000GB, RPM: 7200RPM, Cache: 16MB/32MB, Size: 2.5 Inchs, 3.0Gb/s or 6.0Gb/s Package Include: Major Brand 1000GB 7200RPM 16MB/32MB Hard Disk Drive This Product Has 3 Years Warranty And 30 Days Money Back Guarantee