Use Newegg coupon code NET829US
Newegg has this Netgear ReadyNAS Ultra 4-Bay Gigabit Ethernet Network Attached Storage Enclosure for $529.99. Use the coupon code and the price drops to $499.99. The enclosure
features an Intel Atom 1.66GHz single-core processor, Gigabit Ethernet, three USB 2.0 ports, one USB 3.0 port, multiple volume support for RAID 0, 1, and 5, and TiVo compatibility. Shipping is free.