Western Digital Blue WD10EZEX 3.5" 1TB 7200RPM SATA3 6GBs 64MB Cache HDD Hard Disk Drive WD10EZEX-60M2NA0.Model Number: WD10EZEXWD Part Number: WD10EZEX-60M2NA0HP Part Number: 691790-003Specifications:Form Factor: 3.5"Type: SATAInterface: SATA III, Serial ATA-600 (6.0 Gbs)Capacity: 1TBCache: 64MBAverage Latency: 5.56msRPM: 7200 RPM