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BSB0505LA-00 BN5010S5H-N00P internal blower cooling fan is a premium aftermarket replacement fan for Valve Steam Deck gaming handheld. It runs at DC5V 0.5A and comes with a 4-pin interface matched to the heatsink assembly. Designed for Q1 256GB and Q2 512GB Steam Deck editions, it reliably removes heat generated by the APU during gameplay. Stable cooling maintains consistent gaming performance and protects internal hardware from high-temperature damage. Built with high-quality bearing, it delivers low-noise operation for long gaming sessions. The mounting holes and connector are fully consistent with the original fan. Please verify your Steam Deck revision and original fan part number before purchase to confirm compatibility.