Which laptops does M21398-001 fit? M21398-001 (HP card reader) is documented to fit 6 laptop models, including HP EliteBook 640 G9, HP EliteBook 650 G9 and HP EliteBook 645 G9 and 3 more. Fits come from OEM documentation (HP page), last checked 2026-11-12; not bench-tested. Full compatibility list.
HP spare part description: "Smart card reader". 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 EliteBook 640 G9 All card reader for this model | HP | 2026-11-04 | OEM documented |
| HP EliteBook 650 G9 All card reader for this model | HP | 2026-11-04 | OEM documented |
| HP EliteBook 645 G9 All card reader for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 640 G8 All card reader for this model | HP | 2026-11-12 | OEM documented |
| HP ProBook 650 G8 All card reader for this model | HP | 2026-11-12 | OEM documented |
| HP EliteBook 630 G9 All card reader for this model | HP | 2026-11-12 | Mostly documented (90–99%) |
HP description: "Smart card reader". Listed in a sibling or family document (tier B). OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, Document Part Number N03558-001 (copy saved from support.hp.com), PDF pages 30, 64: "M21398-001" (Smart card reader). (via MG fold)
HP description: "Smart card reader". Listed in a sibling or family document (tier B). OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, Document Part Number N03559-001 (copy saved from support.hp.com), PDF pages 30, 63: "M21398-001" (Smart card reader). (via MG fold). Direct PDF verified by sha256 match with local copy
HP description: "Smart card reader". Listed in a sibling or family document (tier B). OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, PDF pages 30, 64, 81: "M21398-001" (Smart card reader). (via MG fold)
HP spare part: Smart card reader. OEM documentation only; not bench-tested.
HP Maintenance and Service Guide pdf_12638334, PDF page 31: "M21398-001". The fetched guide names this part for this model. (via v10 fold 2026-11-12)
HP spare part: Smart card reader. OEM documentation only; not bench-tested.
HP Maintenance and Service Guide pdf_12638344, PDF page 31: "M21398-001". The fetched guide names this part for this model. (via v10 fold 2026-11-12)
HP spare part: Smart card reader (not illustrated). OEM documentation only; not bench-tested.
HP Maintenance and Service Guide pdf_5715130, PDF page 29: "Smart card reader (not illustrated) M21398-001". Content match to the fetched guide. (via v10 fold 2026-11-12)
Summary of the documented fits above (sources on each model card); not bench-tested.
| Model | Brand | Type |
|---|---|---|
| HP EliteBook 640 G9 | HP | Business laptop |
| HP EliteBook 650 G9 | HP | Business laptop |
| HP EliteBook 645 G9 | HP | Business laptop |
| HP ProBook 640 G8 | HP | Business laptop |
| HP ProBook 650 G8 | HP | Business laptop |
| HP EliteBook 630 G9 | 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
M21398-001