OEM Industries
OEM Industries B31256-56 120mm Fan 12V 0.49A 2-Wire Ball Bearing
120 mm ball-bearing fan delivers 80 cfm airflow at 3000–3499 rpm with 40–45 dBA noise
- ColorBlack
- TypeFan only
- Fan Size120mm
- Bearing TypeBall
- Power Connector2 Wires
- LEDNo
- High airflow over 80 CFM from 3000-3499 RPM
- Quiet operation at 40-45 dBA noise level
- Durable ball bearing design for long life
- Simple 2-wire 12V 0.49A power connection
- Compact 120mm frame fits standard mounts
Targeted Cooling Upgrade
The OEM Industries B31256-56 is a 120mm fan only unit built for direct 12V 0.49A two-wire connection. Ball bearing construction supports continuous duty in mining rigs or standard PC cases where a simple, high-speed airflow device is required.
Replaces Weaker Case Fans
This unit suits builders replacing stock 120mm fans that spin below 3000 rpm or deliver under 80 cfm. The jump is worth it when chassis pressure demands sustained airflow above 80 cfm and the 40 to 45 dBA acoustic ceiling is acceptable for the environment.
Sustained High-Speed Operation
Ball bearing design maintains 3000 to 3499 rpm output without the wear patterns seen in sleeve alternatives under constant load. Airflow remains above 80 cfm during extended mining or rendering sessions while noise holds within the 40 to 45 dBA band.
أبرز المميزات
- High airflow over 80 CFM from 3000-3499 RPM
- Quiet operation at 40-45 dBA noise level
- Durable ball bearing design for long life
- Simple 2-wire 12V 0.49A power connection
- Compact 120mm frame fits standard mounts
المواصفات
| Model | B31256-56 |
|---|---|
| Color | Black |
| Type | Fan only |
| Fan Size | 120mm |
| Bearing Type | Ball |
| Power Connector | 2 Wires |
| LED | No |
أسئلة حول هذا المنتج
Does the 120mm frame use the standard PC case mounting holes?
The fan has a 120mm square frame; verify your case or radiator uses the matching 120mm hole pattern before mounting.
How do I connect the two bare wires to a motherboard header?
Identify the 12V and ground wires, then crimp or solder them to a 3-pin or 4-pin plug that matches your header; the fan draws 0.49A at 12V.
When will the ball bearing need replacement?
Ball bearings typically run for tens of thousands of hours; replace the fan if noise rises above the rated 40 to 45dBA or speed drops below 3000rpm.
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عملاء قارنوا هذه المنتجات
نفس القسم، ونفس صفحة الدفع — ثماني عملات رقمية وقفل سعر لمدة 30 دقيقة.
