Milltech Smart Radio SR161 AIS Receiver. This is great AIS receiver LED status lights and a serial port to go to your computer. It has a 12v power cord. Sells new for $189..... I'll let this one go for $125 otherwise I might just keep it for a spare. Contact info: gregnelsen@hi-modulus.com

Here is a link to the specs: http://www.milltechmarine.com/SR161.htm