Garmin GTX 330 Mode S transponder like new. Grey face 14/28vdc. P/N 011-00455-20 S/N 84306545. 

Removed from Citation for avionics upgrade. This unit can be upgraded to C/W ADSB-out. 

Included are transponder, trey and backplate with connectors as removed. 

Also for sale locally. Questions message or call  Josh 302-757-4226.