Best Buy offers the Western Digital 1.5TB Portable USB 3.0 External Hard Drive, model no. WDBY8L0015BBK-NESN, for $89.99 with free shipping ($0.06/GB). That's $10 under our January mention and the lowest total price we could find by $29. Sales tax is added where applicable. It features a data transfer rate of up to 5Gbps.