Which laptops does 821156-xx1 fit? 821156-xx1 (HP keyboard) is documented to fit 3 laptop models: HP ZBook 15u G3, HP ZBook 15u G4 and HP EliteBook 850 G4. Fits come from OEM documentation (HP service guide), last checked 2026-11-12; not bench-tested. Full compatibility list.
HP spare part description: "No-backlight keyboard for ZBook 15u". 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 ZBook 15u G3 All keyboard for this model | HP | 2026-11-04 | OEM documented |
| HP ZBook 15u G4 All keyboard for this model | HP | 2026-11-04 | OEM documented |
| HP EliteBook 850 G4 All keyboard for this model | HP | 2026-11-12 | OEM documented |
HP description: "No-backlight keyboard for ZBook 15u". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, PDF page 60: "821156-xx1" (No-backlight keyboard for ZBook 15u). (via MG fold)
HP description: "Keyboard without backlight". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, PDF pages 31, 62: "821156-xx1" (Keyboard without backlight). (via MG fold)
HP spare part: Without a backlight. OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c05357619, PDF page 31: "● Without a backlight 821156-xx1". 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 ZBook 15u G3 | HP | Business laptop |
| HP ZBook 15u G4 | HP | Business laptop |
| HP EliteBook 850 G4 | 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
821156-xx1