Cooler Master Hyper 212 Halo Black CPU Cooler RR-S4KK-20PA-R1
- 120 mm
- Black
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40 mm dual-ball-bearing fan runs at 3.3 V and 0.16 A with a three-wire connector
The Delta AFB0405HHA is a 40 mm square frame fan built for tight spaces inside servers, network appliances or compact workstations. It runs on 3.3 V DC and draws 0.16 A, making it suitable for low-voltage headers on industrial boards or embedded systems. The black frame and blade assembly contain no lighting.
Double ball bearings provide longer service life and consistent rotation compared to sleeve alternatives. The three-wire lead delivers power, ground and a tachometer signal so the host can monitor speed in real time. No PWM wire is present, so speed control depends on voltage regulation.
Standard 40 mm hole spacing fits most legacy CPU coolers and chassis brackets without adapters. The short 10 mm depth clears low-profile heatsinks but verify clearance against nearby capacitors or VRM heatsinks. Incorrect polarity on the 3.3 V line will prevent spin-up and may damage the motor.
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| Product | |
|---|---|
| Model name | AFB0405HHA |
| Product color | Black |
| Product type | Fan only |
| Power | |
| Power input connector | 3 Wires |
| Size & build | |
| Fan size | 40 mm |
| Bearing design | Ball |
| More details | |
| LED lighting | No |
The motor draws 0.16 A at 3.3 V DC, so a standard 3.3 V rail can supply it without extra headroom.
The third wire carries a tachometer signal so the motherboard can monitor fan speed in real time.
The frame measures 40 mm by 40 mm and is 10 mm thick, matching the standard 40 mm fan mounting pattern.
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