Fitment Details:
Small daughterboard typed I/O Board (029/032/034/035 precedent; matches parts.json usage). Card Reader / Power Button retypes are advisory only. Listed for all 8 checked SKUs. OEM parts list only; not bench-tested.
Source:HP PartSurfer
Source notes
Saved HP PartSurfer product BOM(s) on box (partsurfer/cache_<SKU>.json, captured before this loop; no new HP fetch, HP OEM cool-down ON). Listed for 8 of 8 checked US product numbers (4LX87US, 4WB83US, 6NP21US, 4TE53US, 4JF42US, 4BC44US, 4ND30US, 4AJ49US). HP description: "SPS-BD AMBIENT LIGHT SENSOR". Keyword: PC Board. OrderFlag: 1. (via MM-LOOP-036).