612-0094 AS031733057. Apple iMac 27" A1312 Mid 2011. LED Backlight Inverter Board. Genuine part, used tested and working. This is a used item so it may be dirty / very dirty / faded / yellowish / scratched / liquid marked / rusty and or have stickers / tape marks so it will not be in its original condition, if it's a multiple the one photographed may not be the one you receive.