GAMEMAX GMX-WFBK-PWM 120mm Case Fan - Black Frame / High-Performance Cooling Fan / PWM Intelligent Speed Control (800–1600 RPM) / Ultra-Quiet Operation (Up to 30dBA) / 8× Shock-Absorbing Rubber Pads / 4-Pin PWM Motherboard Control / Stable & Low-Noise Design for PC Builds / GMX-WFBK-PWM

The GAMEMAX GMX-WFBK-PWM is a 120 x 120 x 25mm case fan with a black frame and nine black blades. Its motor spins between 800 and 1600 RPM with a 10 percent tolerance, which covers a near-silent idle at the low end and full cooling at the top. It fits any standard 120mm mounting point in a modern chassis.

A 4-pin PWM connector hands speed control to the motherboard, so the fan tracks actual component temperature instead of running flat out all day. Under a light desktop load it settles near the bottom of the 800 RPM range, then climbs toward 1600 RPM as a game or render pushes the processor and graphics card harder.

Maximum airflow is rated at 41 CFM with a 10 percent tolerance. That is the figure that matters for a case fan doing intake or exhaust duty, where the job is to keep replacing warm air around the graphics card and drives with cooler air from outside. Two or three of these move a meaningful volume through a mid-tower.

Maximum static pressure is 1.83mmH2O. Static pressure is what lets a fan push air through something that resists it, such as a dust filter, a mesh front panel or a dense radiator fin stack. A fan with airflow alone stalls against those obstructions, which is why this figure matters as much as the CFM rating.

Even at its maximum 1600 RPM the fan is specified at 30dB(A). That ceiling is the worst case rather than the normal state, since PWM control keeps it well below top speed for most of a working day. In a build with several fans, a low ceiling per fan is what keeps the whole machine quiet enough to sit beside.

Eight shock-absorbing rubber pads sit between the fan frame and the chassis. They stop motor vibration transferring into the steel panels, which is where most of the buzzing and rattling in a noisy PC actually comes from. Isolating the fan this way also keeps it seated squarely under load rather than working its screws loose over time.

The fan runs on a hydraulic bearing with a mean time between failures of 30,000 hours. Hydraulic bearings use a fluid film to separate the moving surfaces, so they stay quieter for longer than a plain sleeve design and tolerate being mounted horizontally. At typical daily use, 30,000 hours covers several years of continuous operation.

Rated voltage is 12V with an operating window of 5V to 13.8V, and the fan starts turning from 5V. Current draw is 0.15A rising to 0.18A at maximum, which works out to 1.8W and a 2.16W peak. A low start voltage means the fan reliably spins up again after a fan curve has taken it right down at idle.

The fan uses a 500mm 4-pin PWM power cable with male and female ends, so cables can be routed to a header at the top of a full tower rather than stretched. Mounting screws are supplied in the box. Installation is a four-screw job and one header connection, with nothing to configure beyond a fan curve in the BIOS.