Which SSD fits the HP ProBook 645 G1? OEM part numbers

16 SSDs are documented for the HP ProBook 645 G1: 749261-001, 749262-001, 749277-001, 749278-001, 749280-001 and 11 more. 4 of 16 come from OEM documentation (h10032.www1.hp.com); last checked 2026-11-12. Not bench-tested: match the number on your old SSD and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
749261-001	HP SSD 749261-001	OEM documentation only; not bench-tested.	Mostly documented (90–99%)	2026-11-12
749262-001	HP SSD 749262-001	OEM documentation only; not bench-tested.	Mostly documented (90–99%)	2026-11-12
749277-001	HP SSD 749277-001	OEM documentation only; not bench-tested.	Mostly documented (90–99%)	2026-11-12
749278-001	HP SSD 749278-001	OEM documentation only; not bench-tested.	Mostly documented (90–99%)	2026-11-12
749280-001	HP SSD 749280-001	OEM documentation only; not bench-tested.	Mostly documented (90–99%)	2026-11-12
749284-001	HP SSD 749284-001	OEM documentation only; not bench-tested.	Mostly documented (90–99%)	2026-11-12
749285-001	HP SSD 749285-001	OEM documentation only; not bench-tested.	Mostly documented (90–99%)	2026-11-12
749286-001	HP SSD 749286-001	OEM documentation only; not bench-tested.	Mostly documented (90–99%)	2026-11-12
749954-001	HP 128-GB SATA-3 solid-state drive for 15.6in. models 749954-001	OEM documentation only; not bench-tested.	Mostly documented (90–99%)	2026-11-12
749955-001	HP 180-GB SATA-3 solid-state drive for 15.6in. models 749955-001	OEM documentation only; not bench-tested.	Mostly documented (90–99%)	2026-11-12
763530-001	HP SSD 763530-001	HP description: "256-GB SATA-3 SED solid-state drive, Opal2". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
806234-001	HP 256-GB SATA-3 solid-state drive, TLC 806234-001	HP description: "256-GB SATA-3 solid-state drive, TLC". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
806235-001	HP 256-GB SATA-3 solid-state drive, TLC 806235-001	HP description: "256-GB SATA-3 solid-state drive, TLC". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
829939-001	HP 512-GB SATA-3 solid-state drive, TLC 829939-001	HP description: "512-GB SATA-3 solid-state drive, TLC". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
834422-001	HP SSD 834422-001	OEM documentation only; not bench-tested.	Mostly documented (90–99%)	2026-11-12
834423-001	HP 256-GB SM841 locked solid-state drive, Opal2 834423-001	OEM documentation only; not bench-tested.	Mostly documented (90–99%)	2026-11-12

Where do these HP ProBook 645 G1 SSD part numbers come from?

4 of 16 fits are from OEM documentation (h10032.www1.hp.com); each row links its source. Last checked 2026-11-12.

Are these SSDs tested in the HP ProBook 645 G1?

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 645 G1.

Other parts for the HP ProBook 645 G1

Service Part (48) · Keyboard (198) · Speakers (1) · Touchpad (10) · Fan (2) · Heat Sink (2) · Cable (3) · Bottom Cover (2) · Power Adapter (9) · Wireless Card (5) · Hard Drive (17) · RTC Battery (1) · Battery (4) · Camera (1) · Microphone (1) · Display Cable (4) · Power Cord (16) · Screw Kit (1) · Memory (4) · Motherboard (70) · Display Bezel (6) · Hinge (1) · Screen (14) · Card Reader (3) · Service Door (4) · Hinge Cover (1)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model hp-probook-645-g1) or the keyless JSON API.