Which I/O board fits the HP EliteBook 840 G9? OEM part numbers

1 I/O board is documented for the HP EliteBook 840 G9: N09042-001. 1 of 1 comes from OEM documentation (partsurfer.hp.com); last checked 2026-10-29. Not bench-tested: match the number on your old I/O board and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
N09042-001	HP USB board (UMA graphics)	configuration-specific: 8 of 8 checked SKUs. Only the listed SKUs/configurations are evidenced; not a universal model fit. Saved PartSurfer BOM; no HP fetch. OEM documentation only; not bench-tested.	OEM documented	2026-10-29

Where do these HP EliteBook 840 G9 I/O board part numbers come from?

1 of 1 fits are from OEM documentation (partsurfer.hp.com); each row links its source. Last checked 2026-10-29.

Are these I/O boards tested in the HP EliteBook 840 G9?

No. Fits come from manufacturer or retailer documentation and are not bench-tested. Check the part number on your old part and any listed constraint.

All documented parts for the HP EliteBook 840 G9.

Other parts for the HP EliteBook 840 G9

Power Adapter (49) · Battery (3) · Fingerprint Reader (2) · Heat Sink (2) · Display Back Cover (4) · Display Bezel (5) · Bottom Cover (2) · Hinge (1) · Touchpad (2) · Speakers (2) · Fan (2) · Display Cable (1) · Keyboard (99) · Camera (2) · RTC Battery (1) · Screen (5) · Power Cord (76) · SSD (10) · Wireless Card (6) · Card Reader (1) · Motherboard (30) · Microphone (1) · Service Part (42) · Cable (15) · Memory (3) · Screw Kit (1)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model hp-elitebook-840-g9) or the keyless JSON API.