Newegg offers the Samsung P3 4TB USB 3.0 Portable External Hard Drive, model no. STSHX-MTD40EF, for $169.99. Coupon code "EMCAXKK34" drops it to $159.99. With free shipping, that's tied with our July mention, $20 off list, and the lowest total price we could find. It features SafetyKey data protection and transfer speeds of up to 5Gb/s. Deal ends September 17.