From Amazon
WD Blue 3TB Desktop Hard Disk Drive - 5400 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch
AA2Z Supply
WESTERN DIGITAL WD30EZRZ WD BLUE 3TB 5400RPM SATA-6GBPS 64MB BUFFER 3.5INCH INTERNAL DESKTOP HARD DISK DRIVE. BULK. .
PC Direct UK
Western Digital 3Tb WD30EZRZ WD Blue Hard Drive