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Transparent PMMA case with four fan headers and four knobs

EN-Labs

EN-Labs TX3CO6S 4-Channel Fan Controller 36W 12V PWM/DC Knob

SKU CH-DJA5-ZSE8A

A 4-channel fan controller that powers up to four 3-pin or 4-pin fans from a GPU 6-pin or 12 V DC 5.5×2.1 header, with individual knobs for 0–100 % speed control and a combined 36 W limit

  • Product typeInternal Power Adapter
  • 4 channels let you tune each fan independently
  • 0–100 % speed range with off position per channel
  • 36 W total power budget drives pumps and fans
  • Powered by GPU 6-pin or 12 V 5.5 × 2.1 mm jack
  • Individual knobs give direct voltage control for 3-pin and 4-pin fans

What it does

The EN-Labs TX3CO6S is a four-channel fan controller built for 12 V PWM and DC fans. Each channel can be switched off or set anywhere from zero to 100 percent speed with its own knob, giving individual control over CPU coolers, case fans or water-cooling pumps.

Sustained operation

Power comes from a GPU 6‑pin connector or a 5.5 × 2.1 mm DC jack, supplying up to 36 W and 3 A total across all four outputs. The PMMA enclosure protects the board while the stepless voltage governor maintains steady speeds under continuous load without thermal throttling.

Before you buy

Verify that your power supply has a free GPU 6‑pin lead or that you can use the 5.5 × 2.1 mm header for 12 V input. Confirm every fan you plan to connect is a 3‑pin or 4‑pin 12 V unit; 3‑pin fans will run on voltage control only, not PWM. The combined draw of all attached fans must stay within the 36 W limit.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $18.99
Pricier than about 60% of the 7,839 comparable items (median $14.99).

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Specifications

Product
Brand nameEN-Labs
Model nameTX3CO6S
Product typeInternal Power Adapter

Questions about this item

How much power can the TX3CO6S supply to four fans running continuously?

The controller delivers a maximum total of 36 W at 3 A from the 12 V rail, shared across all four channels.

Which power connectors must my system provide for the TX3CO6S to operate?

It requires either a GPU 6-pin connector or a DC 12 V 5.5 × 2.1 mm (5521) header.

Can I still use my older 3-pin fans with the TX3CO6S alongside newer 4-pin models?

Yes — each channel accepts both 3-pin and 4-pin fans; 3-pin fans are controlled by voltage adjustment only, while 4-pin fans receive PWM control.

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