Check the listing for details. GPS Annunciation Control Unit MD41-728 (Yellow Tagged). Condition: Used. Listed at 80.00 USD. GPS Annunciation Control Unit MD41-728Part No. MD41-728Serial No. 10385Yellow tagged (FAA Form 8130-3) This unit has been tested and works great. It has a 90 day warranty. MD41-728 28vdc Horizontal Mount includes one connector. It is TSO'd C129, and is rated 28 VDC. For use with: II Morrow Apollo 2001 TSO/2001 GPS/2101/GX50/GX60 What you see in the picture comes in the box. Please review shipping details, as we do have a few options available; some may be cheaper than others. We strive to satisfy our customers. Thank you, Happy shopping! Also note: If there is shipping damage, please retain the packaging and take pictures for insurance purposes. Alert us within 24 hours of receiving package should anything be wrong with it. We cannot fully satisfy if we are not notified immediately of any problem. We are not responsible if we are not notified properly. Thank you. *PLEASE TAKE A LOOK AT OUR STORE FOR ALL OF YOUR AVIONIC NEEDS!*Copy and Paste the following URL: https://www.ebay.com/str/depotavionics