The official part # is M1921LL/A . It is only available to local dealers at this
point, who are authorized repair facilities. Therefore, the price is generally higher
than when Apple has it available in the regional repair facilities. The US price is
going to be between $416 and $470 plus hourly repair charge.
I was going to remove my FPU and added VRAM and sell it.
I am also going to wait until it is available at the Rochester repair facility and get
it for about $416.
Don