Western Digital offers the factory-refurbished Western Digital My Book Essential 2TB USB 3.0 External Hard Drive, model no. WDBACW0020HBK-NESN, for $109.99. Coupon code “WDCARES” drops it to $94.99. With free shipping, that’s $0.05/GB, tied with last week’s mention, and $30 under the lowest total price we could find for a new one. This drive is purported to run 3x faster than a similar USB 2.0 device when connected to a USB 3.0 port. It also features password protection with hardware encryption. A 6-month Western Digital warranty applies.