Multiple units on one Addressable rgb header: Ampere and cable question?

[Emiliano85]

Hi guys.

I'm having a hard time finding out how i go about connecting 3 addressable rgb units into 1 addressable rgb header on my new mobo. Maybe someone can shine some light on this issue - which is oddly hard to find any info on by searching the internet!

Mobo: Asus ROG Crosshair VIII Hero Wifi x570
Device 1: Argb cable from AIO/pump head of the Deepcool Castle 360ex (Aura compatible)
Device 2: argb strip (Aura compatible)
Device 3: argb strip (Aura compatible)

First off i know about not overloading headers in order to avoid frying things,but the thing is i can't really find out how much ampere a AIO's header rgb (or this one's in particular) uses. The argb headers on the Asus ROG Crosshair VIII Hero are 3A (5V) each, as per the instructions manual coming with the board. The AIO on the other hand, has these specs:

Radiator Dimensions	402×120×27 mm
Radiator Material	Aluminum
Net Weight	1705 g
Tube length	465 mm
Pump Dimensions	86×75×71 mm
Pump Speed	2550 RPM±10%
Pump Noise	17.8 dB(A)
Pump Connector	3-pin
Pump Rated Voltage	12 VDC
Pump Rated Current	0.2 A
Pump Power Consumption	2.4 W
Fan Dimensions	120×120×25 mm
Fan Speed	500~1800 RPM±10%
Fan Airflow	64.4 CFM
Fan Air Pressure	2.33 mmAq
Fan Noise	≤32.1 dB(A)
Fan Connector	4-pin PWM
Bearing Type	Hydro Bearing
Fan Rated Voltage	12 VDC
Fan Rated Current	0.15 A
Fan Power Consumption	1.8 W
LED Type	Addressable RGB LED
LED Connector	3-pin(+5V-D-G)
LED Rated Voltage	5 VDC
LED Power Consumption	2.25 W（PUMP）
EAN	6933412726760
P/N	DP-GS-H12-CSL360EX

I don't see any mention about "A" in regards of the addressable lighting, only that it is 5 VDC voltage, which is standard for argb. A little further down i see "2.25W" mentioned - but nothing about ampere. The same goes for LED strips, i can't find any specs about their usage of a.

So my question is: How do i know how many ampere the aio's argb + the 2 argb strips use, in order to not go over the limit of the 3A supported by the argb header on the board?

Also another thing: Would a 4 pin splitter cable (3 way) be ok to use between A) an 3 pin argb header on the mobo and B) one, two or three 3 pin argb devices - as longs as the total ampere of the devices is not higher than what mobo supports? I mean it's basically the same cable, just with one less pin no? Will it work, or does it have to be a dedicated 3 pin splitter cable?

Thanks.

 

[Emiliano85]

So nobody knows the answer to this?

 

[Anthony1021]

I dont know if you'll get this since I'm a bit late, but I'll try. Anyways, for the basics if you need argb always use the 5v header. 12v from my understanding is for solid colors only. As for splitters I found this post back in 2017 from reddit should help you ( https://www.reddit.com/r/buildapc/comments/7fmpil ). This basically goes into depth about the 60 addressable RGB LED cap the asus aura has. If you find your item to be under that limit you shouldnt have a problem running a splitter off of one header. If you have 60+ LEDs off of one header its recommended to follow the the reddit post above which includes a youtube video and some schematics. If you dont feel like make the splitters listed the in the schematics section I believe you can find them on ebay for about $10.