FOR 405 485 G1 G2 Main Board — MS-7863 / MS-7938 (729643 753929-001)

Replacement main board for FOR 405 and FOR 485 systems, compatible with both G1 and G2 revisions. Fits models MS-7863 and MS-7938 and corresponds to part numbers 729643 and 753929-001 for precise compatibility. Use this board when you need a like-for-like swap of the original mainboard in repair or refurbishment projects. Verify compatibility with your device model and connectors before installation.