Which laptops does 840664-001 fit? 840664-001 (HP fingerprint reader) is documented to fit 4 laptop models: HP ProBook 640 G2, HP ProBook 645 G2, HP ProBook 650 G2 and HP ProBook 655 G2. Fits come from OEM documentation (HP service guide), last checked 2026-11-12; not bench-tested. Full compatibility list.
HP spare part description: "Fingerprint reader board with cable, 14 inch". Documented OEM replacement; see each fit for configuration limits.
Devices documented to accept this OEM component. Compatibility from OEM documentation or a labelled source, with a confidence level on each fit; not bench-tested.
| Model | Brand | Last checked | Confidence |
|---|---|---|---|
| HP ProBook 640 G2 All fingerprint reader for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 645 G2 All fingerprint reader for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 650 G2 All fingerprint reader for this model | HP | 2026-11-12 | OEM documented |
| HP ProBook 655 G2 All fingerprint reader for this model | HP | 2026-11-12 | OEM documented |
HP description: "Fingerprint reader board with cable, 14 inch". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, PDF pages 35, 82: "840664-001" (Fingerprint reader board with cable, 14 inch). (via MG fold)
HP description: "Fingerprint reader board with cable, 14 inch". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, PDF pages 35, 82: "840664-001" (Fingerprint reader board with cable, 14 inch). (via MG fold)
HP spare part: Fingerprint reader board (includes cable), For 14" products. OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c04919621, PDF page 35: "For 14" products 840664-001". The fetched guide names this part for this model. (via v10 fold 2026-11-12)
HP spare part: Fingerprint reader board (includes cable), For 14" products. OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c04919621, PDF page 35: "For 14" products 840664-001". The fetched guide names this part for this model. (via v10 fold 2026-11-12)
Summary of the documented fits above (sources on each model card); not bench-tested.
| Model | Brand | Type |
|---|---|---|
| HP ProBook 640 G2 | HP | Business laptop |
| HP ProBook 645 G2 | HP | Business laptop |
| HP ProBook 650 G2 | HP | Business laptop |
| HP ProBook 655 G2 | HP | Business laptop |
Fit check: Always confirm the OEM part/FRU number on your machine's label or in the service manual before buying. HP service guide
840664-001