320GB 2.5" Hard Drive for Lenovo/IBM Thinkpad T520-4241 T520-4242 T520-4243 T420-4177 T420-4178 T420-4180 T420-4236 T410-2516 Interface: SATA, Capacity: 320GB, 5400RPM: 5400RPM, Cache: 8MB, Size: 2.5 Inchs, 3.0Gb/s Package Include: 320GB 5400RPM Hard Disk Drive This Product Has 3 Years Manufacturer Warranty And 14 Days Money Back Guarantee