Which laptops does N77399-001 fit? N77399-001 (HP memory) is documented to fit 5 laptop models, including HP EliteBook 640 G11, HP EliteBook 840 G11 and HP ProBook 440 G11 and 2 more. Fits come from OEM documentation (HP service guide), last checked 2026-11-12; not bench-tested. Full compatibility list.
HP spare part: 16 GB memory module for the PRC. 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 G11 All memory for this model | HP | 2026-11-10 | OEM documented |
| HP EliteBook 840 G11 All memory for this model | HP | 2026-11-10 | OEM documented |
| HP ProBook 440 G11 All memory for this model | HP | 2026-11-12 | OEM documented |
| HP EliteBook 645 G11 All memory for this model | HP | 2026-11-12 | OEM documented |
| HP ProBook 465 G11 All memory for this model | HP | 2026-11-12 | OEM documented |
HP spare part: 16 GB memory module for the PRC. OEM documentation only; not bench-tested.
HP EliteBook 640 14 inch G11 Maintenance and Service Guide pdf_10342196, printed page 33: "16 GB, for use in the PRC N77399-001". Text re-extracted from the PDF. (via SOLO-18 fold 2026-11-10)
HP spare part: 16 GB DDR5-5600 SODIMM memory module for PRC models. OEM documentation only; not bench-tested.
HP EliteBook 840 14 inch G11 Maintenance and Service Guide pdf_10145544, printed page 19: "16 GB (PRC) N77399-001". Text re-extracted from the PDF. (via SOLO-18 fold 2026-11-10)
HP spare part: Memory modules (DDR5, PC-5600), 16 GB (PRC). OEM documentation only; not bench-tested.
HP Maintenance and Service Guide pdf_10338598, PDF page 27: "16 GB (PRC) N77399-001". The fetched guide names this part for this model. (via v10 fold 2026-11-12)
OEM documentation only; not bench-tested.
HP Maintenance and Service Guide pdf_10342159, PDF page 41: "16 GB, for use in the PRC N77399-001". The fetched guide names this part for this model. (via v10 fold 2026-11-12)
HP spare part: Memory module, 16 GB, DDR5-5600, 1.1 V. OEM documentation only; not bench-tested.
HP Maintenance and Service Guide pdf_10382458, PDF page 28: "16 GB, DDR5-5600, 1.1 V N77399-001". 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 G11 | HP | Business laptop |
| HP EliteBook 840 G11 | HP | Business laptop |
| HP ProBook 440 G11 | HP | Business laptop |
| HP EliteBook 645 G11 | HP | Business laptop |
| HP ProBook 465 G11 | 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
N77399-001