923-0047 A1312 LED Backlight Board Kit for iMac 2011 NB-5893W
This is a replacement LED Backlight Board for 27" iMac released in mid 2011. There are two versions of this board and both use the same Apple part number. You can tell the difference based on the number of pins on the connector next to the port.
Apple part number: 923-0047
Compatible models: iMac (27-inch Mid 2011), A1312
923-0047 A1312 LED Backlight Board Kit for iMac
OEM!! APPLE iMAC 27 A1312 MID 2011 BACKLIGHT INVERTER BOARD 661-5980 923-0047