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Black 30 cm USB to 4-pin switch cable with inline toggle, PVC jacket, 22 AWG pure copper conductors

Ruth's sister

Ruth's sister USB to 4-pin switch cable 30 cm

SKU CH-G95B-7GJJ6

A 30 cm USB-to-4-pin cable with an inline on/off switch powers a chassis fan from a USB port, though speed drops around 60 per cent

  • On/off switch gives manual fan control
  • 30 cm length fits tight case routing
  • Pure copper 22 AWG conductors ensure reliable power
  • Converts 4-pin chassis fan to USB power
  • Fan speed drops 60 % so choose high-speed model

USB to 4-pin adapter with switch

This 30 cm cable connects a chassis fan to a USB port using a small 4-pin connector at one end and a USB-A plug at the other. An inline ON/OFF toggle lets you cut power without unplugging. It is intended for DIY builders who want to run a case fan from a PC or laptop USB socket. The fan must support 5 V low-voltage startup or it will not spin.

Power delivery and speed loss

The USB port supplies 5 V, so the fan receives less voltage than a standard motherboard header provides. The supplier notes that fan speed drops by 60 percent when this adapter is used. A higher-speed fan is recommended to compensate for the reduced airflow. The cable cannot boost voltage or provide PWM control.

Thermals and build

The cable uses 22 AWG conductors made of 18 strands of 0.10 mm pure copper with PVC insulation and a 3.5 mm outer diameter. Rated temperature is 80 °C and the assembly weighs 20 g. Wire model is 2464. No active cooling or electronics are present; heat and noise are limited to the fan itself.

Highlights

  • On/off switch gives manual fan control
  • 30 cm length fits tight case routing
  • Pure copper 22 AWG conductors ensure reliable power
  • Converts 4-pin chassis fan to USB power
  • Fan speed drops 60 % so choose high-speed model

Specifications

No published specifications for this item yet.

Questions about this item

Will the 30 cm cable reach from a rear motherboard USB header to a front-mounted chassis fan?

The cable is 30 cm long with a 3.5 mm outer diameter, so measure your chassis routing before installing.

How can I confirm the switch is actually cutting power to the fan?

Toggle the inline ON/OFF switch; the fan should start and stop immediately if it supports 5 V low-voltage startup.

Does the package include a 4-pin fan or only the adapter cable?

Only the USB to small 4-pin switch cable is supplied; a compatible 5 V chassis fan must be purchased separately.

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