Supermicro FAN-0114L4 4U 92x92x38mm (4-pin) 5KRPM PWM Fan
92mm Hot-Swappable Middle Axial Fan
Supermicro Certified, Fan Speed: 5,000 RPM
Compatible with CSE-747BTS and CSE-747TG Series Chassis
4U, 92x92x38mm (4-pin) 5KRPM PWM Fan, for SC747's Chassis - PB-Free