This 4 pin fan cable by Delock with PWM support enables the extension of the fan connection. The 4 pin male fan connector is also suitable for the connection of a 3 pin fan connector without PWM support. Specification https://elecena.pl/product/18363830/85362-delock-extension-cable-pwm-fan-connection-4-pin-50-cm 2021-05-06 https://elecena.pl/product/18363830/85362-delock-extension-cable-pwm-fan-connection-4-pin-50-cm 2021-06-17 https://elecena.pl/product/18363830/85362-delock-extension-cable-pwm-fan-connection-4-pin-50-cm 2022-05-01 https://elecena.pl/product/18363830/85362-delock-extension-cable-pwm-fan-connection-4-pin-50-cm 2026-03-07