SanDisk offers its SanDisk 480GB Extreme 510 Portable USB 3.0 External SSD for $109.99. Coupon code "DNDEALSNOV " drops it to $95.99. With free shipping, that's $14 under our August mention and the lowest price we could find by $4. It features read speeds of up to 430MB/s and write speeds of up to 400MB/s.