HH absolutely couldn't handle this Alloy body's "pricepoint" for their RTR models.
This was probably an Upgrade servo that was superceded by another upgrade servo that Spektrum offers. We could only guess what the specs are.
No
BEC voltage specs??
What voltages are allowed? is it 23 spline? or 25 spline?
Any more info to go by, from your source?
Just passed on to you as they are in the pix.
A score I guess. If they were for free.

Let us know how they work. Its a coreless one.

There is absolutely no listing for such model number like you said.

These were from 2 years ago. Never made it to full production.
Enjoy them.