500GB 2.5" Laptop Hard Drive for Lenovo B550 B560 B570 B570e B570e2 Interface: SATA, Capacity: 500GB, RPM: 5400RPM, Cache: 8MB, Size: 2.5 Inchs, 3.0Gb/s Package Include: 500GB 5400RPM Hard Disk Drive This Product Has 3 Years Warranty And 30 Days Money Back Guarantee