DBPJ1238B2G Cooling Fan 12cm Square 4pin for Antminer S19kpro
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AVC DBPJ1238B2G 120×120×38mm Cooling Fan | 12VDC / 6000 RPM / 210 CFM Ball-Bearing Square 4-Pin Replacement Fan for Antminer S19k Pro Chassis Cooling
The AVC DBPJ1238B2G is the 120×120×38mm chassis cooling fan sized for the Antminer S19k Pro. Direct replacement when an original fan fails — restores airflow across the hashboard heatsinks and clears the thermal throttling, abnormal hashrate drops, and shutdown faults that come from a degraded chassis fan on a high-density S19k Pro deployment.
Delivers 210.38 CFM airflow at 6000 RPM on 12VDC / 2.7A / 32.4W rated power. Built around a ball-bearing architecture with a reinforced circuit board for sustained high-RPM continuous-duty operation — typical S19k Pro chassis fans run 24/7 at 80%+ duty cycle in production farms. The square 4-pin PWM connector matches the OEM control signal from the S19k Pro control board, supporting both speed reporting and PWM-driven fan curve control.
When to Replace the DBPJ1238B2G Fan
- S19k Pro fan failure — original fan dead, seized, or making grinding bearing noise.
- Thermal throttling or hashrate drop — fan running but airflow degraded by worn bearing.
- Audible bearing wear — grinding, ticking, or fluctuating speed sounds before complete failure.
- Service-life refresh — preventive fan replacement during a complete S19k Pro rebuild on used units.
- Post-cleaning fan replacement — fans removed during deep cleaning often don't survive reinstallation if heavily worn.
DBPJ1238B2G Fan Specifications
| Feature | Specification |
|---|---|
| Brand | AVC |
| Part Number | DBPJ1238B2G |
| Form Factor | 120 × 120 × 38 mm (square) |
| Operating Voltage | DC 12V |
| Current | 2.7A |
| Rated Power | 32.40W |
| Speed | 6000 RPM |
| Airflow | 210.38 CFM |
| Bearing Architecture | Ball bearing |
| Connector | 4-pin PWM (square) |
| Circuit Board | Reinforced for sustained high-RPM duty |
| Compatibility | Antminer S19k Pro chassis cooling |
FAQ — DBPJ1238B2G Fan
Q: Why ball bearing instead of sleeve or hydraulic?
A: Ball bearings handle sustained high-RPM operation (6000 RPM continuous) better than sleeve bearings. Hydraulic bearings are quieter but typically rated for lower RPM. The ball-bearing design gives the right trade-off for S19k Pro 24/7 chassis service life.
Q: Will it work on the S19k or S19 Pro (non-k)?
A: The 120×120×38mm form factor and 4-pin PWM connector are common to several Antminer models in the S19 generation. Verify the chassis fan mount and PWM connector pinout on your specific model before substituting — most S19 variants accept this fan as a direct swap.
Q: 6000 RPM seems loud — is there a quieter option?
A: 6000 RPM is the OEM spec for S19k Pro chassis cooling. Going lower means reduced airflow, which can trigger thermal throttling. For noise-sensitive deployments, consider an external silencer/blower setup with the fan running at full speed — silences much more effectively than swapping fans.
Q: Bulk pricing for repair shops?
A: Yes — email contact@lys-sz.com with your monthly volume. Carton-quantity pricing available for farm operators with S19k Pro fleets.
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S19k Pro farm operators stocking DBPJ1238B2G fans by the case? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.
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).
