Best Buy offers the Western Digital My Book Essential 3TB USB 3.0 External Hard Drive, model no. WDBACW0030HBK-NESN, for $129.99 with free shipping ($0.05/GB). That's the lowest total price we could find by $21 and among the least expensive 3TB USB 3.0 drives we've seen with shipping. Sales tax is added where applicable. 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.