Delta Electronics AFC1212D-PWM case fan
A medium-high speed case fan at 120 x 120 x 25mm. It operates at 3400 RPM and delivers air flow of 113.11 CFM. With PWM feature, this fan has the ability to adjust spinning speed to achieve a balance of cooling and acoustics. It's also built to be tough to withstand long-hour operation in demanding environments, thanks to industrial-grade materials and top-notch, high-quality dual-ball bearing.