You know that this board is not working, do you?
I hope so... that is what they say is in the two new miners models... 2.4THs and 3.6THs.
They wouldn't make a whole mock-up if it didn't work. (That is one of a whole punch-sheet. You can see the second board just below the knock-out tabs.) Well, again, I hope they wouldn't!
Has a ( QC #8 ) stamp on it...
That
RNC or PNC logo might clue us in to the actual board MFG. (Hard to read that logo.)
Here is PNC...
http://www.eeweb.com/websites/pnc-inc.-from-pcb-design-to-turnkey-pcb-assemblyEDIT:Yea, it is PNC, that is the logo on the boards I find online in google-images for "PNC INC". This image is somewhere on the PNC website. (It is hotlinked, so not sure where.)
Image is upside-down... logo is on the top right, by the number "4308" which is upside-down...
Looks like "80Eh"... logo is just below that, well, above if the image was the right way. Also the numbers-ID follows the same format, Starting with the logo "PNC" and ending in "4B94V-O" (That I believe is a PCB specification)
That company is in New Jersey. Right next door to them.
Would you like schematics? (lol, just kidding... I am keeping those to myself. Not sure they were intended to be seen. JK.)