When you look at a standard gold finger card. Each finger is a separate contact for the edge. If this card fit into a slot there’s room for an upgrade. On the boardsort picture you can clearly see the division between the fingers on and he clean gold fingers. Your board is full flash. But I believe I see lines indicating an edge connector (the proper term for what is known as gold finger card connector). Be it into a socket or against another board, the plating will be thicker for actual connectors over the ultra thin nano layer of standard flashing.
I could just be seeing things but I’m going with my historical based gut here and I’ll call this low telco. It’s still dependant on a review in person but I see breakage lines. In fact I’m so sure of my gut here I’ll back that grade. Low telco. Guarantee. Not enough to make it to gold finger card but adding the edge connector to a 4 layer, top flashed board I have no problem going out on calling this one.
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