Amazon.com: WD RE4 500 GB Enterprise Hard Drive, 3.5 Inch, 7200 RPM, SATA II, 64 MB Cache (WD5003ABYX) (Old Model) : Electronics
STTBSKD2_EMC1200 – EMC 1.2TB 10K RPM SAS 2.5″ HDD for Unity 300, 400, 500, 600, 25 slot enclosures , 0 power on hours, 1 year warranty – Disk Drive Finder
1D8APD-500 Seagate External Hard Drive
500 GB Hard Drive 500 GB 1 TB 2 TB WD Samsung Seagate SATA 3.5" HDD PC DESKTOP | eBay