Replacement Motherboard FOR BM5688 5B20S72117 5B21B63967 with MT8173C CPU — Compatible Replace 3 for CB-11M735 / C330

Compatible replacement motherboard for CB-11M735 and C330 systems (listed as replace 3). Matching part numbers: FOR BM5688, 5B20S72117, 5B21B63967. Onboard processor: MT8173C. Designed as a direct compatible swap for the specified models — confirm the part numbers on your original board before ordering.