Scanned NM-B453 Rev: 1.0 board
Same shape of board also:
320-15IKB,17IKB -------------- NM-B451 (Intel "i" 8th gen. only UMA)
330-15IKB ------------------------ NM-B452 (Intel "i" 8th gen. DIS)
330-15IKB ------------------------ NM-B453 (Intel "i" 8th gen. DIS)
320-15ISK 520-15ISK -------...