AABCOOLING Super Silent R4 – quiet 40 mm fan
- Set of 3: AABCOOLING Super Silent R4 – quiet 40 mm fan with FDB bearing: 3200 rpm, 7.35 m³/h, 12.9 dB(A), 100,000 h service life. For chipsets and electronics. Includes screws, pads and a 12 V / 9 V adapter.
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Set of 3 – AABCOOLING Super Silent R4
The set includes 3 pcs of AABCOOLING Super Silent R4. The description below refers to a single item.
Quiet 40 mm fan with FDB bearing
AABCOOLING Super Silent R4 is a quiet 40 × 40 × 20 mm fan with seven dynamically profiled blades that deliver smooth, quiet operation and good performance. It runs at a fixed speed of 3200 rpm (±10%) and delivers an airflow of 7.35 m³/h at a noise level of just 12.9 dB(A).
Quiet operation is ensured by a modern FDB (Fluid Dynamic Bearing) with a service life of 100,000 hours – much longer than sleeve bearings. The package includes mounting screws, anti-vibration pads and a 12 V / 9 V power adapter that lowers the speed and noise.
Key features
- Quiet operation – 12.9 dB(A)
- Airflow – 7.35 m³/h
- FDB bearing – 100,000 h service life
- Modern IC motor
- Black sleeved cable, 3-pin plug
- 12 V / 9 V adapter included – lower speed and even quieter operation
- Mounting screws and anti-vibration pads included
Advantages of the FDB bearing
Ordinary sleeve bearings rub against each other and heat up during operation, which shortens their service life. An FDB bearing offers:
- no friction between bearing parts and a longer service life,
- vibration damping by the oil,
- low noise – practically only the fan blades generate it,
- protection against oil leakage,
- even lubrication thanks to the spiral oil filling,
- a proven design – such bearings are also used in hard drives.
Applications
Its compact 40 × 40 × 20 mm dimensions let you install the fan where space is tight. AABCOOLING Super Silent R4 is ideal for cooling:
- small CPU or chipset heatsinks – as a quiet replacement for a noisy fan,
- consumer electronics and home appliances, e.g. set-top boxes, tuners and amplifiers,
- electronics enclosed in small housings, e.g. switches, routers and power converters.
Installation and connection
The fan is mounted with four screws (hole spacing 32.5 × 32.5 mm). This lets you quickly and easily replace a noisy fan with a quieter one.
Ways to connect the fan:
- connect the fan to a 3-pin header on the motherboard (the cable is 30 cm long) – you can then read the fan speed in the BIOS,
- cut off or disassemble the 3-pin plug and connect the fan directly to the device's power supply – only the black (ground, −) and red (+) wires are needed; the yellow wire carries the speed signal and is not required in this case. Cutting off or disassembling the plug excludes the possibility of returning the product.
Specifications
- Dimensions: 40 × 40 × 20 mm
- Weight: 30 g
- Material: plastic
- Power supply: 4–12 V DC / 0.03–0.09 A / 0.12–1.1 W
- Power connector: 3-pin, 4-pin Molex
- Speed: 3200 / 1900 rpm ±10%
- Airflow: 7.35 / 4.25 m³/h
- Noise level: 12.9 / 7.9 dB(A)
- Bearing: FDB (Fluid Dynamic Bearing)
- Mounting hole spacing: 32.5 × 32.5 mm
- Cable length: 30 cm
- Service life: 100,000 h
Package contents
- 1 × AABCOOLING Super Silent R4
- 4 × mounting screw
- 4 × anti-vibration pad
- 1 × 3-pin 12 V / 9 V DC fan power adapter
