Amazon.com: WD Blue 500GB Mobile Hard Disk Drive - 5400 RPM SATA 6 Gb/s 7.0 MM 2.5 Inch - WD5000LPVX : Electronics
Seagate Guardian BarraCuda ST500LM030 - hard drive - 500 GB - SATA 6Gb/s - ST500LM030 - Internal Hard Drives - CDW.com
Cheap Western Digital WD5000AVDS 500GB 7.2K RPM SATA II | Refurbished
Source New hard Seagate 500GB hdd Desktop PC3.5" Internal Mechanical Hard disk SATA 3Gb/s-6Gb/s HDD 500 GB 5400 RPM 8 MB / 32 MB Buffer on m.alibaba.com
Seagate Video3.5 Hdd 500gb Desktop Pc Internal Mechanical Hard Disk Sata 3gb/s Hdd 500 Gb 5900 Rpm 16mb Buffer - Hard Disk Drive - AliExpress
Seagate Laptop Thin HDD 500GB Serial ATA Disc Drive | eBay