Newegg offers the HGST Deskstar 4TB NAS Serial ATA 6Gb/s Internal Hard Drive, model no. H3IKNAS40003272SN, for $159.99. Coupon code "ESCEKFF22" cuts that to $139.99. With free shipping, that's the lowest total price we could find by $20, although we saw it for a buck less (via pickup) three weeks ago. This 7200rpm hard drive is designed for NAS systems and features a 64MB cache. Deal ends June 12.