400 G4 SFF Motherboard (DDR4) — Part 911985-001 / 911985-601 / 900788-000

Direct-replacement DDR4 mainboard for 400 G4 SFF systems. This motherboard matches part numbers 911985-001, 911985-601 and 900788-000. Designed in a small form factor (SFF) and compatible with DDR4 memory modules, it serves as an exact-fit board for repairs, refurbishments, or system rebuilds that require the specified 400 G4 SFF mainboard.