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 Y-cables with 4-pin connectors, 115mm long

Noctua

Noctua NA-SYC1 4-pin Y-cable set black 115mm

SKU CH-4TY0-JDQN2

Splits one 4-pin header to run two PWM fans simultaneously while passing one RPM signal to the motherboard

  • Run two PWM fans from one header
  • Two cables included for dual-fan setups
  • 115 mm length fits compact builds
  • Black sleeving and connectors for clean looks
  • 4-pin connector accepts 3-pin and 4-pin fans

Fan Y-Cable Set

The Noctua NA-SYC1 set provides two fully sleeved 4-pin Y-cables, each 115mm long, allowing a pair of PWM fans to run from a single motherboard header. Both fans receive the same speed signal simultaneously while the RPM signal from one fan is reported back to the board for monitoring. Black connectors and sleeving keep the installation looking clean.

Builders Splitting One Header

This kit suits anyone needing to run two 4-pin or 3-pin fans from one PWM header, especially in tight spaces where the short 115mm reach matches the layout. Builders whose fans would push the combined draw past the header limit — commonly 9.6W or 12W — should look at a powered hub instead. Users needing independent speed control for each fan also need a different solution.

Combined Header Current Limit

The decisive figure is the motherboard header's maximum power rating, typically 9.6W or 12W, which caps the total draw of both fans on the Y-cable. Exceeding that limit risks header damage or unstable fan operation, so the combined fan wattage must stay within the board's stated figure.

Highlights

  • Run two PWM fans from one header
  • Two cables included for dual-fan setups
  • 115 mm length fits compact builds
  • Black sleeving and connectors for clean looks
  • 4-pin connector accepts 3-pin and 4-pin fans

Specifications

No published specifications for this item yet.

Questions about this item

What does the 4-pin PWM Y-cable allow you to run on a single motherboard header?

Two 4-pin PWM fans can be controlled simultaneously via one PWM fan header; the RPM speed signal of one fan is transmitted to the motherboard for monitoring.

How long is each cable and what clearance is needed for the connectors?

Each cable measures 115mm end to end; the black 4-pin connectors fit both 3-pin and 4-pin fan headers and require standard header spacing.

Can you daisy-chain these Y-cables, and what power limit must you observe?

Multiple NA-YC1 cables can be daisy-chained to control more than two PWM fans from one header, provided the combined fan power draw does not exceed the header limit of 9.6 or 12W.

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

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.