1TB 3.5" Hard Drive for Dell Inspiron 531 Desktop PC HDD Computer - Certified 2 Year Warranty from HDGeeks Interface: SATA, Capacity: 1000GB, RPM: 7200RPM, Cache: 16MB/32MB 1TB Upgrade Hard Drive. Major Brand: WD, Seagate, Tosbhia, Hitachi, etc. This Product Has 2 Year Warranty from HDGeeks And 30 Days Money Back Guarantee.