Hi Oleg
Thank you for your kind reminder. The first version of Nait3 I made in 2013 did indeed have some issues. At that time, it was cleaned up in China at a lower price and users were informed of the specific points of the problem, mainly due to some wiring not being connected.
This year, the newly designed Nait3 PCB was mainly used for maintenance. A Chinese player insisted that I help him repair his Nait3, so I redrawn the PCB. This version of Nait3 is very perfect, but I did not sell it to the market.
You mentioned that the NAP155XS currently being sold on Alibaba is also perfect. There are no errors in the current version, as the first version has an incorrect sample in my home and I have not sold it to the public.
The attachment is my NAP155XS, which is currently in service in my system.
Thank you again for your reminder.
Sincere greetings!
Caowei.