Funny, I got some spam this morning about this:
Originally Posted by Some desperate sellers
Subject: AQ 50 D flight control board (GPS & altitude hold support) support Quad, HEXa, Octa, etc
<snipped name of spam company> here to recommend you our new product AQ 50 D flight control system (update version with new sensors) with good quality.
AQ50 PRO is an easy to set up and easy to fly platform for multi motor.It is
designed for Aerial Photography or FPV.
2. ą1.5g - 6g Three Axis Low-g Micromachined Accelerometer(MMA7260).
3. Three Axis Micromachined Gyro（IDG-650,ISZ-650).
<more stuff snipped>
welcome to inquiry!
Trying to dump old stock AND misleading about non-coming GPS support, eh?