Wireless Card HP OEM OEM documented
800870-001

HP wireless card 800870-001

HP spare part description: "lt4120 LTE/EVDO/HSPA+ SnapdragonT X5 LTE mobile broadband module".

Compatible Business Laptop Models (2)

Devices documented to accept this OEM component. Compatibility from OEM documentation, not bench-tested.

Installation: Not verified

Fits these models

ModelBrandLast checked
HP EliteBook x360 1030 G2HP2026-10-23
HP EliteBook 840 G4HP2026-10-29

HP EliteBook x360 1030 G2

Business Laptop Form: 2-in-1 Convertible
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Fitment Details:

WWAN module; listed on WWAN-configured SKUs only. Not in this MSG revision (it lists 845710-001 and 860726-001, both gaps). ADVISORY: PartSurfer names it HP lt4120 (Snapdragon X5); EMPR names T77W595 (the Foxconn module family behind HP lt4120). Same part; PartSurfer wins. Configuration-specific: 2/8 checked SKUs. Match your product number or the original part number. OEM parts list only; not bench-tested.

Source:HP PartSurfer
Source notes

Saved HP PartSurfer product BOM(s) on box (captured 2026-10-23 by partsurfer/harvest_b3new; no new HP fetch, HP OEM cool-down ON). Listed for 2 of 8 checked US product numbers (2DK52US, 2HB30US). HP description: "lt4120 LTE/EVDO/HSPA+ SnapdragonT X5 LTE mobile broadband module". Keyword: Wireless Interface. (via MM-LOOP-030).

HP EliteBook 840 G4

Business Laptop Display: 14"
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Fitment Details:

configuration-specific: 1 of 1 checked SKUs. Only the listed SKUs/configurations are evidenced; not a universal model fit. Saved PartSurfer BOM; no HP fetch. OEM documentation only; not bench-tested.

Source:HP PartSurfer
Source notes

PartSurfer BOM (saved cache) 1HY84US / Wireless Interface; HP description: "lt4120 LTE/EVDO/HSPA+ SnapdragonT X5 LTE mobile broadband module"; US product numbers: 1HY84US. Saved PartSurfer BOM checked offline 2026-10-29, no HP fetch (via FOB-CX-001).

Fits these models

Summary of the documented fits above (sources on each model card); not bench-tested.

ModelBrandType
HP EliteBook x360 1030 G2HPBusiness laptop
HP EliteBook 840 G4HPBusiness laptop

Fit check: Always confirm the OEM part/FRU number on your machine's label or in the service manual before buying. HP PartSurfer

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