Hello,
I am selling Boom a RC/ AR Radio Smart Bus RRS with Pin Flag Switch and Display. This is a 4 RX redundant DSMX compatible power distribution system. It’s actually just a flight old and my reason is to have moved to a different setup which does not support DSMX. It’s a great piece of equipment!!! Gives you:

1. Voltage regulation
2. 2 battery redundant system
3. 4 DSMX Satellite RX redundant one fails 3 are available
4. Subtrim, End points, servo channel setup, 16 points control settings etc etc
5. Very Easy setup
6. 20 slots meaning you can hook 26 servos
7. Servo Matching
Link:
http://boomarc.com/en/smart-bus-rrs-spektrum-dsmx

Price I am looking for 20K

Again pictures by evening only. Original packaging