Do i need an rgb controller or can i just plug one of these into an rgb header on my mobo?

Your preference I think, but depending on what rgb device you are using you may get more customizability with a controller (which, I think most of those use a usb header on the motherboard?) If you use the rgb header on the mobo you can control the rgb devices through the mobo software, instead of using a separate controller. But Corsair devices probably work best with a corsair controller, that brand has its own software too.

How do i know when i need a rgb splitter? my mobo is gigabyte z390 ud and i want two rgb led strips.

If you are not going to be using a controller hub, and the total number of LEDs is under 300 per RGB port on your motherboard then you can use it like a extension cord of sorts. If you have more than one RGB port you can have the 2 strips on one port, and your fans (or heatsink RGBs) on the other port(s) with RGB Fusion you can select different colors to the different ports.

I have a MasterLiquid ML240R RGB. Could I plug the water cooler and the 2 fans from the radiator into this, then just simply plug into RGB Header?

Hello Mike, The 240R is an addressable RGB unit. You can use this splitter and plug in the fans and pump into it, then plug it into an ARGB header. It won't work with a standard 12vdc 4 pin RGB header; ARGB and RGB are not the same technology. CM-PNguyen

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Cooler Master masterfan splitter cable r4-accy-rgbs-r2

Product ID: 256493127

Details

Brand
Cooler Master
Cable type
Data splitting
Compatible devices
devices such
Connector type
4-pin (12v g r
Special features
RGB Lighting

⚡Supports 4-pin & 5-pin RGB headers

📏58 cm flexible length

🔌1-to-3 RGB splitter

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Description

✨ Light up your rig like a pro with Cooler Master’s RGB splitter! 🔥

STREAMLINED SETUP - Reduce cable chaos by consolidating multiple RGB connections into one neat splitter—perfect for limited motherboard headers.
TRIPLE YOUR RGB IMPACT - Seamlessly extend up to three RGB fans or LED strips with a single cable—maximize your setup without clutter.
FLEXIBLE ROUTING FREEDOM - 58 cm length offers versatile cable management for a clean, professional build aesthetic.
VIBRANT RESPONSIVE LIGHTING - Experience bright, dynamic RGB effects that sync instantly with your ARGB headers for a next-level visual vibe.
UNIVERSAL HEADER COMPATIBILITY - Works flawlessly with both 4-pin RGB and 5-pin RGBW headers—no adapters needed, no hassle.

The Cooler Master MasterFan Splitter Cable R4-ACCY-RGBS-R2 is a 1-to-3 RGB splitter cable designed to extend multiple RGB LED fans and strips with a flexible 58 cm length. It supports both 4-pin RGB and 5-pin RGBW headers without adapters, enabling streamlined cable management and vibrant lighting synchronization for professional-grade PC builds.

Specifications

ASIN	B0719QY63M
Best Sellers Rank	#53,413 in Computers ( See Top 100 in Computers ) #427 in Computer Case Fans
Brand Name	Cooler Master
Cable Type	Data splitting cable
Color	RGB Splitter Cable
Compatible Devices	RGB-compatible devices such as Personal Computers, Smartphones, Monitors, and Lighting Systems
Compatible Phone Models	No Compatible Phone Models
Connector Gender	Male-to-Female
Connector Type	4-pin (12v,g,r,b)
Country Of Origin	China
Customer Package Type	sealed anti-static bag
Customer Reviews	4.4 4.4 out of 5 stars (1,906)
Global Trade Identification Number	00884102032554, 04719512059890
Included Components	1 x RGB Splitter
Indoor Outdoor Usage	Indoor
Item Length	1.9 Feet
Item Shape	Flat
Item Type Name	Cooler Master 1-to-3 RGB Splitter Cable for RGB LED Fans, LED Strips, 5-pin and 4-pin RGB Header Compatibility
Item Weight	40 Grams
Manufacturer	Cooler Master USA, Inc.
Maximum Current	3 Amps
Maximum Voltage	300 Volts
Model	R4-ACCY-RGBS-R2
Model Name	R4-ACCY-RGBS-R2
Number of Items	1
Number of Pins	4
Other Special Features of the Product	RGB Lighting
Outer Material	Polyvinyl Chloride (PVC)
Part Number	R4-ACCY-RGBS-R2
Recommended Uses For Product	Connecting and extending RGB LED strips fans
Specification Met	UL
UPC	884102032554
Unit Count	5 Count
Warranty Description	This item is eligible for 1 year of warranty provided by the Manufacturer /Brand from the date of purchase. You can contact Manufacturer/Brand or Seller for more details

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60 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Romania.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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