Cooler Master Hyper 212 Halo Black CPU Cooler RR-S4KK-20PA-R1
- 120 mm
- Black
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A 40 mm Maglev fan runs at 12 V and 0.9 W with a two-wire power connector
The OEM Industries KD1204PKS2 is a square 40 mm fan designed for tight CPU cooler mounts in small-form-factor or embedded systems. Maglev bearing operation keeps noise and wear low while the 12 V, 0.9 W draw suits limited power budgets. Builders working with proprietary server trays or thin clients will find the footprint familiar. It is not aimed at full-size desktop towers that expect larger heatsink assemblies.
A two-wire lead delivers power without PWM or tachometer signals, so speed control relies on voltage regulation from the motherboard or an external controller. The bare-lead connector fits cramped headers where three- or four-pin plugs would foul adjacent components. Black frame and blades blend into dark chassis interiors. Systems that require fan-fault reporting or closed-loop speed curves cannot use those features with this unit.
Running at a constant 12 V means airflow and acoustic output stay steady rather than ramping with load. The 0.9 W rating indicates modest static pressure suited to low-impedance heatsinks or case ventilation rather than dense fin stacks. No LED lighting or additional wiring is present. Environments needing variable airflow or higher static pressure will need a different cooling approach.
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| Product | |
|---|---|
| Model name | KD1204PKS2 |
| Product color | Black |
| Product type | Fan only |
| Power | |
| Power input connector | 2 Wires |
| Size & build | |
| Fan size | 40 mm |
| Bearing design | Maglev |
| More details | |
| LED lighting | No |
The fan runs on 12 V and draws 0.9 W through its two-wire lead.
It follows the 4020 form factor — 40 mm square — so it matches standard 40 mm mounting patterns.
Plug the two wires directly into a 12 V DC header or adapter; there is no PWM signal wire to manage.
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