Welcome to choose Avalon PSU3300-03, PSU3400-03 Rspower power supply 4-wire fan speed controller, the speed controller is suitable for Avalon 10 series, 11 series, 12 series, 13 series miners Avalon HQ Rspower's power supply air cooling and oil cooling installation. The speed simulator can help the miner's power supply reduce the operating noise and prolong the service life of the power supply.