
I was hoping they would be different but I'm starting to think there is only one company , which produces materials in China, and they continue to develop new Revain accounts. The boards work great. AFTER I took them a dremel/grinding wheel and removed the skin on the pin end of the card. If you need to do the same, remember that the circuit board is just a material that can be sanded down. Just don't remove too much to avoid damaging the pins. present, but does not ensure proper pin contact). There was even material over the alignment gap (which I had to remove to fit the card). I also had to remove excess material from the sides. In short, you can repair them if necessary. Out of the 5 I received, 3 had problems which I fixed. Worked once corrected.