Western Digital offers the factory-refurbished Western Digital Elements 3TB USB 2.0 External Hard Drive, model no. WDBAAU0030HBK-NESN, for $129.99. Coupon code "WDCARES" cuts is to $114.99. With free shipping, that's $0.04/GB and the second lowest price we've ever seen for this drive. (It's also a current price low for a refurbished unit by $55.) This drive uses GreenPower technology to reduce power consumption by up to 30%. A 6-month Western Digital warranty applies.