As one of its daily deals, Newegg offers two HGST 4TB Deskstar NAS 3.5" SATA Internal Hard Drives, model no. 0S03664, for $279.99 with free shipping. That's the lowest total price we could find for two drives by $20. Designed for use in NAS applications, it spins at 7200 rpm and features reliability of one million hours of MTBF. Deal ends today.