Western Digital WD6400BEVT Scorpio Blue 640GB internal hard drive (6.4 cm (2.5 inches), 5400rpm, 8MB cache, SATA II) (Personal Computers)
Shipping with Amazon Prime, as always, very quickly. Packaging TOP; Robust box padded with foam! The hard drive was purchased because slowly went out of space on my WD Scorpio Black 320GB. I installed the 640GB drive in a Lenovo Thinkpad T500 Noteboo