Cooler Master Hyper 212 Halo Black CPU Cooler RR-S4KK-20PA-R1
- 120 mm
- Black
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A 120 mm square cooling fan with sleeve bearing, 12 V .6 A draw and a 2-pin power connector
This square frame cooling fan measures 120 by 25 mm and runs on 12 V at 0.6 A. It uses a two-pin power connector and a sleeve bearing for rotation. The unit is supplied in black with no LED illumination.
Builders needing a basic 120 mm case or heatsink fan with a two-pin header will find it compatible. Buyers who want speed control via PWM or a three-pin tachometer signal cannot use this model. Systems that require a fluid-dynamic or ball bearing for lower noise should look at other designs.
The two-pin connector means the fan receives constant 12 V and cannot report its speed to the motherboard. If your header or controller expects a third wire for monitoring or PWM, this part will not meet that requirement.
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| Product | |
|---|---|
| Brand name | 1225M12S-ND1 |
| Model name | 1225M12S |
| Product color | Black |
| Product type | Fan only |
| Power | |
| Power input connector | 2 Pin |
| Size & build | |
| Bearing design | Sleeve Bearing |
| More details | |
| LED lighting | No |
The fan uses a standard 120 mm square frame and a 2-pin power connector, matching the mounting pattern and header found on most legacy cases and motherboards.
Power the system and verify the blades rotate smoothly; listen for quiet operation from the sleeve bearing and check that the 2-pin header reports a steady RPM in BIOS or monitoring software.
The box contains the 12025 square cooling fan itself; mounting screws and any 2-pin to 3-pin adapters must be purchased separately if your chassis or board requires them.
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