Newegg offers the Western Digital 4TB My Book USB 3.0 External Hard Drive, model no. WDBFJK0040HBK-NESN, for $159.99. Coupon code "EMCPFPG58" cuts the price to $149.99. With free shipping, that's the lowest total price we could find by $9. (For further comparison, we saw it bundled with a card reader for $11 less in February.) It features local and cloud backup and up to 5Gb/s data transfer speeds. Deal ends April 9.