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Geekworm AMPi is an ultra-thin desktop AMP kit based on Raspberry pi 4,which is ideal to use in Raspberry Pi-based hi-fi systems.It composed of three parts: X960 AMP board, cooling system ( P165-B heatsink), and a NUC style aluminum case.Just simply assemble them with the Raspberry Pi 4 motherboard.<br>* X960 V1.2 expansion board can turn your Raspberry pi 4 into a ready-to-play High Resolution Network Music Player.* The case is made of all aluminum alloy, surface anodizing treatment.* Considering that the active cooling fan will interfere with the sound quality, we only use P165-B heatsink, which can provide enough heat dissipation if there is no overclocking.But P165-B may be a slight impact on WIFI，you can remove the heatsink also.