Replacement CPU Cooling Fan for X405 / X405UQ / X405UA / S4100U / S4000UA - NS85B01-17H08 13NB0FN0T01111

Replacement CPU cooling fan compatible with ASUS laptop models X405, X405UQ, X405UA, S4100U and S4000UA. Matches part numbers NS85B01-17H08 and 13NB0FN0T01111. Designed as a direct swap to restore CPU cooling performance on the listed models.