Can I use a 4 pin RGB splitter cable here ?

[Jamin280672]

As the title suggests, can I use a 4 pin RGB splitter cable on a 3 pin argb header on my motherboard at the end of the day the 2nd pin won't have any signal or power etc running through it.

The cable I want to use will have 3 X 3 pin argb devices plugged into it the other end so I'll probably have to cut the 2nd pin off in order to plug the devices in.

 

[Mr Mcgoo]

while it would fit based on your method, it won't be safe, as the 4 pin is for 12v and the 3 pin for 5v. either the led's will blow out or be under powered. also the 4 pin is analogue with basic rgb control and the 3 pin is digital and allows more control over effects that the 4 pin rgb can't do.

 

[LuckyBenski]

while it would fit based on your method, it won't be safe, as the 4 pin is for 12v and the 3 pin for 5v. either the led's will blow out or be under powered. also the 4 pin is analogue with basic rgb control and the 3 pin is digital and allows more control over effects that the 4 pin rgb can't do.

No issue of safety IMO as it's just a wire - assuming OP intends to plug a 5V header into 5V LEDs.

However, splitting like this will do two things, and not do one:

It WILL load the header down with more current so keep an eye on the limits/LED count.

It WILL cause both split "branches" to receive the same LED data. So you will only get good results if the two branches are identical and you want the same colours on both. There is no way to control those two branches separately - it WON'T allow you to set up, say, a fan on one side and a long strip on the other with different light patterns.

Basically it will work if you plan to plug in 3x identical devices and send them all the same colour settings.

 

[Jamin280672]

Its in place and working fine, like you said its just a wire, and yes it is plugged into an argb header on the motherboard, so there is no 12v, the 2nd pin hole on the cable basically doesnt have a pin to connect to on the motherboard, I just had to cut the 2nd pin off each spur on the other end of the cable to plug it into my 3 devices, they are 1 fan, a water block and a reservoir, the LED count is probably only 30ish, and quite right as you said, they are all change at the same time, there is no way to independently change them, which is fine by me as they are all set to white light which is how I wanted them.

 

[Mr Mcgoo]

would help if i read your post properly first time. i can see you wanted to use a 4 pin splitter on your 3 pin argb header. that makes sense. i thought you meant to use a 4 pin led on a 3 pin header. my bad. glad you got it working