We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two black sleeved 10-inch PWM fan splitter cables, each with one 4-pin female and three male connectors

EN-Labs

EN-Labs 121017 PWM fan splitter cable 10 in 1-to-3 2-pack

SKU CH-CZJY-6J2AQ

Splits one motherboard PWM header into three fan connections, with only one tachometer signal to prevent speed-reading conflicts, supplied as a 10-inch two-pack

  • Cable length10 in (25.4 cm)
  • First connector1x TX4 female
  • Second connector3x TX3/TX4 male
  • Connector count4
  • Product typeFan power splitter cable
  • Product colorBlack

Style 2-Pack

  • Connects three PWM fans to one motherboard header
  • 10-inch length keeps cable routing tidy
  • 2-pack lets you manage two headers
  • Only one fan reports RPM for stable monitoring
  • 3-pin fans run at full speed automatically

EN-Labs 121017 PWM fan splitter cable

This 2-pack provides two 10-inch cables that connect a single motherboard 4-pin PWM header to three fans. It is designed for builders who need to expand fan headers without adding a separate controller hub. Each cable carries one PWM signal and one tachometer wire to the motherboard.

Installation notes and common issues

The cable plugs directly into a standard 4-pin header and the three fan connectors are keyed for easy alignment. Only one of the three connectors includes the tachometer pin, so the motherboard reads RPM from that single fan. Builders must ensure the fan they want monitored occupies the full 4-pin branch.

Practical limits of the PWM interface

All three fans follow the same PWM duty cycle, so independent speed control is not possible. Connected 3-pin fans will run at full voltage continuously because they lack PWM input. The single tachometer wire means the motherboard cannot detect if the other two fans stall or fail.

How it compares

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

Price $7.99
Cheaper than about 91% of the 7,839 comparable items (median $14.99).

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameEn-Labs
Model name121017
Product typeFan power splitter cable
Product colorBlack
Ports & slots
First connector1x TX4 female
Second connector3x TX3/TX4 male
Connector count4
Size & build
Overall length10 in (25.4 cm)
Cable length10 in (25.4 cm)

Other versions of this model

3 more in the same range

Questions about this item

How can I confirm the EN-Labs 121017 splitter is controlling all three fans correctly after connecting it?

Connect one fan to the full 4-pin connector and the others to the 3-pin connectors; the motherboard will display a single RPM reading from the 4-pin fan while all three fans spin at the identical PWM-controlled speed.

What comes in the box and what extra items might I need for installation?

The package contains two black 10-inch splitter cables, each with one 4-pin female header and three male headers; no additional parts are required if your motherboard has a standard 4-pin PWM header and your fans use 3-pin or 4-pin connectors.

Which version of the EN-Labs 121017 should I choose for a build that uses both 3-pin and 4-pin fans?

The single 121017 model supports both connector types — 4-pin fans receive full PWM control and RPM monitoring on the first header, while 3-pin fans run at full speed on the other two headers, all governed by the same PWM signal.

More in Internal PSU & Riser Cables

Similar items