Which fingerprint reader fits the HP ProBook 640 G2? OEM part numbers

3 fingerprint readers are documented for the HP ProBook 640 G2: 840664-001, 840683-001, 840735-001. 3 of 3 come from OEM documentation (h10032.www1.hp.com); last checked 2026-11-12. Not bench-tested: match the number on your old fingerprint reader and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
840664-001	HP Fingerprint reader board with cable, 14 inch 840664-001	HP description: "Fingerprint reader board with cable, 14 inch". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
840683-001	HP Bracket kit with fingerprint, WLAN module and smart card rea 840683-001	HP description: "Bracket kit with fingerprint, WLAN module and smart card reader brackets for 14 inch products". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
840735-001	HP Fingerprint reader board with cable, 15 inch 840735-001	HP spare part: Fingerprint reader board (includes cable), For 15" products. OEM documentation only; not bench-tested.	OEM documented	2026-11-12

Where do these HP ProBook 640 G2 fingerprint reader part numbers come from?

3 of 3 fits are from OEM documentation (h10032.www1.hp.com); each row links its source. Last checked 2026-11-12.

Are these fingerprint readers tested in the HP ProBook 640 G2?

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 ProBook 640 G2.

Other parts for the HP ProBook 640 G2

Battery (1) · Keyboard (6) · Bottom Cover (4) · Fan (5) · Screen (8) · Power Adapter (5) · Cable (4) · Hinge (3) · Service Part (20) · Hinge Cover (5) · Touchpad (8) · Card Reader (1) · RTC Battery (1) · Motherboard (33) · Speakers (1) · I/O Board (1) · Memory (5) · Wireless Card (1) · Display Bezel (4) · Display Cable (4) · Display Back Cover (4) · SSD (30) · Hard Drive (6) · Antenna (2) · Screw Kit (2) · Camera (1) · Microphone (1)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model hp-probook-640-g2) or the keyless JSON API.