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Black 120mm ARGB case fan with reverse blades

Lian Li

Lian Li UNI Fan SL Wireless Reverse Blade 120mm ARGB case fan 12RSL1W1B

SKU CH-7SA4-MKCRB MPN 12RSL1W1B

Single 120 mm reverse-blade case fan with 2.4 GHz wireless ARGB control, controller sold separately

  • TypeCase Fan
  • Fan Size120mm
  • ColorBlack
  • LEDARGB

Model Reverse blade

Option Single pack, Regular

  • Wireless 2.4 GHz control cuts cable clutter
  • Reverse blade design directs airflow differently
  • ARGB lighting adds addressable colour effects
  • 120 mm size fits standard case mounts
  • Controller sold separately — purchase part RF-T-B

Single 120 mm reverse-blade fan

The Lian Li UNI Fan SL Wireless Reverse Blade is a 120 mm ARGB case fan finished in black. It uses a 2.4 GHz wireless link for both RGB lighting and fan-speed control, removing the need for internal signal cables. The reverse-blade design pushes air in the opposite direction to a standard fan, letting builders choose intake or exhaust orientation without flipping the unit. A separate controller is required for operation.

Wireless control and daisy-chain layout

Because the fan communicates wirelessly, the usual ARGB and PWM cables are eliminated, which reduces cable clutter and simplifies routing inside the chassis. Units can be daisy-chained together so multiple fans share a single wireless connection to the controller. Power is still delivered through a SATA connector, so a spare SATA power lead from the power supply is necessary. The controller itself is sold separately under part number RF-T-B.

Airflow orientation and system fit

The reverse blades give flexibility when planning airflow paths, allowing the fan to serve as either intake or exhaust while keeping the ARGB lighting visible from the preferred side. Wireless signalling works across typical case dimensions, but metal panels or dense component stacks may reduce range. Builders who need a complete kit with the controller included, or who prefer traditional wired PWM control, should look at alternative fan models.

Highlights

  • Wireless 2.4 GHz control cuts cable clutter
  • Reverse blade design directs airflow differently
  • ARGB lighting adds addressable colour effects
  • 120 mm size fits standard case mounts
  • Controller sold separately — purchase part RF-T-B

Specifications

BrandLian li
TypeCase Fan
Fan Size120mm
ColorBlack
LEDARGB
Shipping weight0.27 kg
Package size150 × 132 × 20 mm

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Questions about this item

Will the reverse-blade impeller need any special cleaning or replacement parts later?

The reverse-blade design uses standard 120 mm dimensions, so ordinary compressed-air cleaning works and no proprietary spares are required.

What limit appears first when the fan runs continuously at full speed?

The 2.4 GHz wireless link can saturate before thermal limits, so sustained maximum RPM may be constrained by signal bandwidth rather than motor heat.

How much extra heat or power draw does the wireless module add during all-day operation?

The wireless controller draws its power through a SATA connection, adding only a small load to the PSU and negligible extra heat inside the case.

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