Would these work for the corsair LL120?

Please don't mind Brandon White's answer as he obviously didn't bother doing proper research about the Commander Pro's port max draw capacity and overloaded them, causing damage to both the cables and the Commander Pro's ports. If you are gonna split ll fans into the Commander Pro please be aware that the whole unit has a 4.5A max capacity and each individual port a 1A. Each ll fan draws 0.3A meaning that you could connect 2 ll fans per port on the safe side and could get away with 3 but not recommended. Connecting 4 to a single port is way beyond the safe zone and could risk what happened to Brandon. Hope this helps.

i have all 4 pin fans, i see the slave connector only has 3 pins, will my 4 pin work if plugged into the 3 pin?

Yes they will. If you look closely one of the 4 connectors has 4 pins all the others only 3. Hook the 4 pin to the fan that you want to control the fan speeds and the 3 pins to any other fans you want. Plug the other end into a mother board header. All fans with the 3 pins will spin at the same RPM as the lone 4 pin. If all the cables had 4 pins the controller would be confused by the multiple signals and become erratic.

I have 6 4 pin fans, and I saw 3 of the extensions only have 3 pins, can I use these splitters for all my fans?

Keep in mind that most fan headers are 12V, 1A. Most fans are 12V, 1A. Using three Noctua 12AF fans, I connected three together and plugged them into the fan header. The fans did not work. They would work individually, but not in a group of three.

Would this fan splitter work properly with 4 fans to one header via ek loop connect?

I'm not familiar with a ek loop, however I have 4 fans connected successfully to one main board fan header with this product.

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PWM Fan Splitter 4 pin Adapter Cable Sleeved Braided Y Splitter for Desktop Computer CPU Fan Splitter PC 4 Pin Fan Extension Power Cable 1 to 4 Converter 10 inches (2 Pack)

PWM Fan Splitter 4 pin Adapter Cable Sleeved Braided Y Splitter for Desktop Computer CPU Fan Splitter PC 4 Pin Fan Extension Power Cable 1 to 4 Converter 10 inches (2 Pack)

Product ID: 145000387

Details

Brand
TeamProfitcom
Cable Type
CPU
Compatible Devices
PC
Connector Type
Pwm 4 Pin
Special Feature
Braided

🌀4-pin PWM + 3-pin fan support

📏10.5-inch cable length

🧵Durable braided nylon sleeving

R49

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Description

🖤 Power your airflow like a pro — sleek, silent, and seriously cool.

SLEEK STURDY DESIGN - Premium black braided sleeving ensures durability and a clean, professional look inside your PC build.
PLUG PLAY SIMPLICITY - No software or drivers needed—just connect and enjoy reliable, silent fan control.
ACCURATE RPM MONITORING - Single tachometer line prevents false speed readings, keeping your system’s cooling precise and efficient.
EXPAND YOUR COOLING ARSENAL - Connect up to 4 fans from a single motherboard header for optimized airflow without extra hubs.
PERFECT LENGTH ZERO CLUTTER - 10.5-inch cable strikes the ideal balance between reach and neat cable management for modern cases.

The TeamProfitcom PWM Fan Splitter is a 10.5-inch sleeved Y-cable that converts one 4-pin motherboard fan header into four fan connectors (one 4-pin PWM and three 3-pin). Designed for seamless compatibility with all 3-pin and 4-pin fans, it boosts your PC’s cooling capacity with durable braided nylon sleeving and precise RPM monitoring from a single fan. Ideal for millennial pros upgrading airflow without clutter or complex setups.

Specifications

ASIN	B07TRV6XZX
Best Sellers Rank	#230,474 in Electronics ( See Top 100 in Electronics ) #4,742 in Audio & Video Power Cables
Brand Name	TeamProfitcom
Cable Type	CPU
Color	Black,Yellow
Compatible Devices	PC
Compatible Phone Models	No Compatible Phone Models
Connector Gender	Male-to-Female
Connector Type	Pwm 4 Pin
Customer Package Type	Coiled in protective tubing or Rigid box
Customer Reviews	4.6 4.6 out of 5 stars (1,285)
Gauge	24
Indoor Outdoor Usage	Indoor
Item Length	10.5 inches
Item Shape	Round
Item Weight	2 g
Manufacturer	TeamProfitcom
Maximum Voltage	12 volts_of_direct_current
Model	TeamProfitcom PWM Fan Splitter
Model Name	PWM Fan Splitter
Number of Items	2
Number of Pins	4
Other Special Features of the Product	Braided
Outer Material	Nylon
Part Number	TeamProfitcom PWM Fan Splitter
Recommended Uses For Product	Improving cooling and airflow management in personal computers
UPC	082652994753
Unit Count	1.66 Feet

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R49