Refurb. Western Digital My Book Essential 640GB hard drive only $75
The refurbished Western Digital My Book Essential 640GB external hard drive (model no. WDH1U6400N) is available at eCost.com for $75. That's about $25 less than the lowest price we have seen on this hard drive anywhere else. Shipping rates start at around $10 and vary by your location and method of delivery. Sales tax applies for residents of California, Texas and Tennessee.