Which laptops does M21396-001 fit? M21396-001 (HP service part) is documented to fit 8 laptop models, including HP EliteBook 640 G9, HP Pro mt440 G3 Mobile Thin Client and HP ProBook 440 G9 and 5 more. Fits come from OEM documentation (HP page), last checked 2026-11-12; not bench-tested. Full compatibility list.
HP spare part description: "RJ-45 door". 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 service part for this model | HP | 2026-11-04 | OEM documented |
| HP Pro mt440 G3 Mobile Thin Client All service part for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 440 G9 All service part for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 445 G9 All service part for this model | HP | 2026-11-04 | OEM documented |
| HP EliteBook 645 G9 All service part for this model | HP | 2026-11-04 | OEM documented |
| HP EliteBook 640 G10 All service part for this model | HP | 2026-11-12 | OEM documented |
| HP ProBook 440 G10 All service part for this model | HP | 2026-11-12 | OEM documented |
| HP EliteBook 645 G10 All service part for this model | HP | 2026-11-12 | OEM documented |
HP description: "RJ-45 door". 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 29, 61: "M21396-001" (RJ-45 door). (via MG fold)
HP description: "RJ-45 door". Listed in a sibling or family document (tier B). OEM documentation only; not bench-tested.
HP Maintenance and Service Guide pdf_6103487, PDF pages 26, 56: "M21396-001" (RJ-45 door). (via MG fold)
HP description: "RJ-45 (network) jack door". Listed in a sibling or family document (tier B). OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, Document Part Number N03555-001 (copy saved from support.hp.com), PDF pages 31, 62: "M21396-001" (RJ-45 (network) jack door). (via MG fold)
HP description: "RJ-45 door". Listed in a sibling or family document (tier B). OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, PDF pages 30, 61: "M21396-001" (RJ-45 door). (via MG fold)
HP description: "RJ-45 door". Listed in a sibling or family document (tier B). OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, PDF pages 29, 61: "M21396-001" (RJ-45 door). (via MG fold)
HP spare part: RJ-45 door. OEM documentation only; not bench-tested.
HP Maintenance and Service Guide pdf_7742201, PDF page 30: "door is available as spare part number M21396-001.". The fetched guide names this part for this model. (via v10 fold 2026-11-12)
HP spare part: RJ-45 door. OEM documentation only; not bench-tested.
HP Maintenance and Service Guide pdf_7740953, PDF page 28: "M21396-001". The fetched guide names this part for this model. (via v10 fold 2026-11-12)
HP spare part: RJ-45 door. OEM documentation only; not bench-tested.
HP Maintenance and Service Guide pdf_7618456, PDF page 29: "door is available as spare part number M21396-001.". 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 EliteBook 640 G9 | HP | Business laptop |
| HP Pro mt440 G3 Mobile Thin Client | HP | Business laptop |
| HP ProBook 440 G9 | HP | Business laptop |
| HP ProBook 445 G9 | HP | Business laptop |
| HP EliteBook 645 G9 | HP | Business laptop |
| HP EliteBook 640 G10 | HP | Business laptop |
| HP ProBook 440 G10 | HP | Business laptop |
| HP EliteBook 645 G10 | 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
M21396-001