Western Digital Store offers its refurbished Western Digital 3TB My Book USB 3.0 External Hard Drive in Black for $69.99. Coupon codes "DNNOV1" and "SAVE5WD" stack to chop the price to $50. With free shipping, that's $35 less than a new one, $5 under our August mention, and the lowest price we've ever seen for this model. Deal ends November 13. Features include: Data transfer rates up to 5Gb/s WD Backup software 256-bit AES hardware encryption Note: A 6-month Western Digital warranty applies.