Sonnet Echo 15 Thunderbolt Hooks Your MacBook Up with 15 Connectivity Options
 

By far the most comprehensive expansion dock we've come across, the Echo 15 from Sonnet plugs into your MacBook's 10 Gb/s Thunderbolt port, and then productively uses that bandwidth to hook you up with 15 connectivity options. These include a 3.5-inch SATA 6 Gb/s internal drive bay (2 TB HDD optional), a slimline optical drive (options include DVDRW and Blu-ray writers), two eSATA 6 Gb/s ports, 4-channel HD audio, four USB 3.0 SuperSpeed ports, gigabit Ethernet, and FireWire 800, each device is Mac OS X compatible. The device features two Thunderbolt ports, so it can be daisy-chained with other devices. Prices start at US $399.95.

http://www.techpowerup.com/182374/So...y-Options.html