Yes, 9TURBO RCUSB-RX3 is still available at my online store http://9rc.com/9turbo
Product detail http://rc-usb.com/rcusb-rx3
(Sorry for late reply, i don't login for a long time..)

Are you still selling VRC-Pro adapters?? Do you take paypal?

hi Mackiv,
my products is high quality. i use high grade components.
and it have quality control for each set.

in fact, my sound kit price is cheaper than Japan product about 1/4.
but you need to more cheaper. you may wait for China product.

Thanks,

RPM sensor is not work.
it possible, if magnetic field of that motor is weak.
So, my RPM magnetic field sensor can not detect it.

but don't doubt about sensor is bad or not.
each sensor was tested by me with 4.5T motor for over 92,000 RPM count already.

you can test it with small magnet (or your rotor), by place it near that magnet.
when you change pole of magnet. the LED of RX461 receiver will change from blue to white, or white to blue.
that show sensor active.

and you should test it with other motors. (other model)

However, if you do not want to use it. Or it is useless for you.
You can send it back to me. To get a refund. In particular, the value of the product. (shipping cost can't refund)