HGST Z7K500-500 500 Go 2.5" SATA Hard disk drive HDD 7200 rpm
500GB 500 GB SATA 7200 RPM 32MB 2.5" Internal HDD Laptop Notebook Hard Drive | eBay
118000769-01 – EMC 1.2TB 10K RPM SAS 2.5″ HDD for Unity 300, 400, 500, 600, 25 slot enclosures – Disk Drive Finder
WD Blue WD5000LPZX 500 GB Hard Drive - 2.5" Internal - SATA (SATA/600) - 5400rpm - Newegg.com
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
500 GB 5400 RPM 2.5" Hard Drive
Sharp – HDD (500GB 2.5-inch) | Item, Inc.
Amazon.com: 500 GB 500GB 2.5 Inch Sata Laptop Internal Hard Drive 5400 RPM for Laptop/Mac/PS3 (500 GB) : Electronics