At a Glance: Razer PWM PC Fan Controller | RZ34-02140

Updated: 22-Sep-2025 | Answer ID: 5737
Technical specifications for the Razer Kunai Hydraulic Case Fans including product manuals, downloads, FAQs, and product warranty information.

Manuals | Product Warranty | Product FAQs

Master your PC’s airflow and noise with the Razer PWM PC Fan Controller. Easily use Razer Synapse software to unlock and customize the pulse width modulation curves for up to eight fans and enjoy lower noise levels compared to traditional DC powered fan setups.

Close shot of the Razer PWM PC Fan Controller

Device Layout

Device layout of the Razer PWM PC Fan Controller

  1. DC power port
  2. Micro-USB port
  3. 4-pin PWM fan ports

Full Technical Specifications

Category Specification
Variation Razer PWM PC Fan Controller
Dimensions 100 x 70 x 18.65 mm / 3.93 x 2.75 x 0.73 in
Weight 80 g / 0.17 lbs
Cables Included
  • DC to SATA
  • Micro to USB Header
Cable Length
  • 530 mm
  • 500 mm
Fan Control Yes
ARGB Control No
Color Black
Ports 8 x 4-pin PWM Headers
Power and Current
  • Each port: 1.5 A, 12 V, 18 W
  • Total: 8 ports 4.5 A, 12 V, 54 W
Max current rating per fan port
  • Power port - 12 V, 5 A, center positive
  • USB and 3-pin headers - 5 V
USB Support Internal USB 2.0 9-pin
Warranty 2 years

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