BM5899 / 5B20S42666 / 5B21B45087 N4000 CPU Touch Motherboard — Replacement for C340-11 & S340-14

Touch-enabled replacement motherboard compatible with C340-11 and S340-14 models. Identified by part numbers BM5899, 5B20S42666 and 5B21B45087, this board comes with a N4000 CPU and serves as a direct model-number replacement for the specified touch systems.