B&H Photo-Video offers the Synology DiskStation 5-Bay Diskless Network Attached Storage, model no. DS1512+, for $669 with free shipping. (Click through to B&H to see this price.) That's $31 under our mention from three weeks ago and the lowest total price we've seen. (It's a current price low by $47.) It features a dual-core CPU, maximum capacity of 20TB, two Gigabit Ethernet ports, USB 3.0, support for various RAID types, read speeds of up to 200MB/s, and write speeds of up to 194MB/s.