Supermicro FAN-0074L4 4U 80x80x38mm (4-pin) Middle Hot-Swap
80mm Hot-Swappable Middle Axial Fan
Supermicro Certified, Fan Speed: 5,000 RPM
Compatible with CSE-743 and CSE-745TS Series Chassis
4U, 80x80x38mm, (4-pin) Middle Hot-Swap Fan w/ Housing, for SC743-645, PB Free