RB1238H12B-6 Cooling fan 6000rpm 12V Brushless Fan 4-pin for Antminer
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RB1238H12B-6 120mm 6000 RPM Brushless Cooling Fan – Antminer L3+/S9/S17/T17/S19/T19
The RB1238H12B-6 is a 120 × 120 × 38 mm DC brushless cooling fan built for efficient cooling of ASIC miner chassis. Maximum speed 6000 RPM through a robust brushless motor delivers the airflow needed to keep modern Antminer hashboards within thermal limits under continuous mining load.
Plug-and-play 4-pin connection for easy installation. Compatible with Antminer L3+, S9, S17, T17, S19 and T19 chassis — drop-in replacement when the factory fan fails or develops bearing noise.
Typical Use Cases
- Failed factory fan replacement — Antminer chassis OEM fan worn out.
- Bearing noise reduction — replace rattling factory units.
- Field service kits — common-failure inventory for fleet maintenance.
- Refurb / resale — fresh fans on rebuilt miners.
RB1238H12B-6 Specifications
| Feature | Description |
|---|---|
| Type | DC brushless cooling fan |
| Part Number | RB1238H12B-6 |
| Size | 120 × 120 × 38 mm |
| Voltage | DC 12 V |
| Max Speed | 6000 RPM |
| Connector | 4-pin (PWM) |
| Compatible Miners | Antminer L3+, S9, S17, T17, S19, T19 |
| Condition | Brand New |
FAQ — RB1238H12B-6 Fan
Q: Compatible with S19 Pro / S19 XP?
A: S19 family chassis use the same 120 × 120 × 38 mm fan slot. Verify connector pinout matches the specific Bitmain revision before ordering.
Q: Sleeve vs brushless — what's the difference?
A: Brushless DC delivers higher reliability + lower noise vs traditional brushed designs. Better choice for continuous mining duty.
Q: Bulk pricing?
A: Yes — email contact@lys-sz.com.
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- RZ12038H12B-6 120mm Brushless Fan
Antminer repair shops stocking RB1238H12B-6? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouses.
Buying in bulk for a mining farm or repair shop?
Get dedicated B2B pricing on this part and across our full catalog — quote response within 24 hours, payment by T/T USD bank wire, and DDP delivery available for US & EU customers (and other lanes on request).
