Questions about Kolink Corsair ARGB Adapter

The Corsair 3-Pin ARGB Adapter Cable - 15cm is designed to connect a 3-pin (5V) ARGB device to a compatible 3-pin ARGB connector, typically on a Corsair motherboard or controller. This cable is an internal adapter with a female 3-pin connector on one side and a male 3-pin connector on the other, 15 cm long. Regarding your specific question: you have a fan with a 3-pin female connector, and your motherboard has a 4-pin connector. This adapter cable doesn't allow you to connect a 3-pin connector directly to a 4-pin connector, because standard ARGB connectors are 3-pin 5V, whereas 4-pin RGB connectors are generally 12V and have a different layout. These two types of connector are not compatible with each other without a specific adapter designed to convert the signal and voltage. In short, this 3-pin ARGB adapter cable will not be compatible for connecting a 3-pin fan to a 4-pin connector on the motherboard. It is only intended for ARGB 3-pin to 3-pin connections, particularly in the Corsair ecosystem or ARGB 5 V compatible. To connect a 3-pin fan to a 4-pin connector on the motherboard, you need to check whether the 4-pin connector is a PWM fan connector (which can accept a 3-pin fan in voltage mode) or a 4-pin RGB connector (which is different). If it's a PWM fan connector, you can connect it without an adaptor, but if it's a 4-pin RGB connector, you'll need a specific adaptor different from this one. I'd advise you to check exactly what the 4-pin connector on your motherboard is (PWM fan or RGB) to choose the right adapter.

No, because 5 and 12 volts, which are the same voltage, must be identical. But there are boxes that convert

The cable would be suitable for connection to the Corsair RGB Fan LED Hub on the 3-pin connector for controller/remote control/hub. If it is a 3 PIN header, this would fit.