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Square black plastic frame 120mm fan with 38mm thickness and four-wire connector

Baibo

Baibo SG121238BS 120x120x38mm 6200RPM 210.38CFM 2.10A 4-pin case fan

SKU CH-S53K-F43TX MPN SG121238BS

Six 120 x 120 x 38 mm dual-ball-bearing fans move 210.38 CFM at 6200 RPM from a 12 V 4-pin connector

  • Number of fans6 Fans
  • Fan depth38 mm
  • Bearing design2 Ball
  • Rotational speed6,200 RPM
  • Airflow rate210.38CFM
  • Product typeCase Fan
  • High airflow of 210.38CFM cools dense hardware fast
  • 6200RPM speed moves air through restrictive chassis quickly
  • Dual-ball bearing design extends operating life under load
  • 4-pin PWM connector enables precise motherboard speed control
  • 120x120x38mm frame fits standard server and mining slots

Six high-speed 120 mm fans

This pack contains six Baibo SG121238BS 120 mm case fans. Each unit runs at 6200 RPM and moves 210.38 CFM through a 38 mm thick frame. The dual-ball bearing and 4-pin connector support PWM control for server or mining chassis.

Suited for high-airflow replacement

These fans suit owners of Avalon 6, 741, Antminer S9, S3, S4, S5, S7, T9, Whatsminer M3, Ebit E9, AntMiner D3, L3+, T9, S15, T15, S17, T17 or Cryptouniverse CPF-12V units needing direct 120x120x38 mm replacements. They are not suited for builds that require quiet low-RPM cooling or standard thinner fan mounts.

38 mm thickness decides fit

The 38 mm frame depth is the single specification that determines whether this fan fits your hardware. Verify the exact mounting depth before purchase; thinner bays will not accept this model.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $123.99
Pricier than about 90% of the 8,339 comparable items (median $19.99).

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Specifications

Product
Product typeCase Fan
Performance
Rotational speed6,200 RPM
Airflow rate210.38CFM
Size & build
Number of fans6 Fans
Fan depth38 mm
Bearing design2 Ball
Product dimensions120 × 120 × 38 mm
Compatibility
Compatible withCase

Questions about this item

How do I mount the 120x120x38mm fan and connect its 4-pin wire, and what step do people miss?

Use the four corner screw holes on the 120 mm square frame, route the 28 cm lead to a 12 V 4-pin header, and verify the airflow arrow points into the case — installers often fit it backwards because the blades spin counter-clockwise.

What part of the Baibo SG121238BS will need replacement first during continuous mining use?

The dual-ball bearing is rated for long life, but at 6200 RPM the lubricant eventually degrades; plan to swap the entire 2.10 A fan unit once bearing noise appears.

At 6200 RPM and 210.38 CFM, what limit appears first when the fan runs non-stop in an Antminer S9?

The 2.10 A current draw at 12 V creates steady heat in the motor windings; thermal throttling or protective shutdown of the miner's controller board typically occurs before the fan itself fails.

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