More fanless ATX power supplies

Known for its groundbreaking - and colorful - mechanical keyboards, MISTEL is testing the waters with no less than two PSUs, the MX550 (550W) and MX650 (650W). Unlike other passively-cooled units MISTEL's 80 Plus Platinum and fully modular power supplies feature copper heat sinks (which should improve the capacitors temperatures and life expectancy).

Source: TechPowerUp