is it possible to adjust the fan speed so that they do not run at max speed all the time?

Yes, if you use a PWM header/controller, and PWM fans. The speed sense signal is only sent from the 1st plug. 3 pin fans will all run full speed (unless you specifically have voltage control on your header, i.e. can set it for DC/3-pin fan control).

to clarify, only one fan's speed can be detected by motherboard. but the speed control signal sent to all fans. am I right?

That is correct. If the motherboard tells the header to speed up the fans, all the connected fans are affected.

would i plug the cpu header in it?

I recommend one of the other fan headers and use the CPU header just for the CPU fan. Power draw is too weak to power multiple fans.

would i be able to use the cpu connector for another case fan?

Yes, disconnect a connected case fan. connect the hub and reconnect the disconnected fan to the hub.

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PWM Fan Hub, PC CPU Cooling 4 PIN/3PIN Power Fan Extension Cable Hub Splitter Adapter Sleeved Case for 12V Desktop Computer Cooler Fans 1 to 5 Way (15.7 Inch)

Product ID: 263423640

Details

Brand
ThreeBulls
Cable type
4-pin PWM
Compatible devices
Desktop
Connector type
4 Pin
Special features
Braided

🔌4-pin PWM & 3-pin fan support

🧵Durable nylon braided sleeving

🖥️1-to-5 fan splitter for max cooling

AR$48676

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Description

🖤 Power up your PC’s airflow game with style and ease!

PLUG PLAY SIMPLICITY - Easy installation with male-to-female connectors ensures quick setup without fuss.
SLEEK DURABLE DESIGN - Premium black nylon braided cable keeps your build clean and cable management on point.
UNIVERSAL COMPATIBILITY - Seamlessly supports both 4-pin PWM and 3-pin fans, making upgrades hassle-free.
EXPAND YOUR COOLING ARSENAL - Connect up to 5 fans from a single motherboard header for ultimate airflow control.
OPTIMIZE YOUR P CS THERMAL PERFORMANCE - Prevent overheating by powering multiple fans efficiently from one header.

The ThreeBulls PWM Fan Hub is a 15.7-inch 1-to-5 splitter cable designed to extend a single 4-pin motherboard fan header to power up to five 3-pin or 4-pin PC case fans. Featuring durable black nylon braided sleeving, it enhances cable management while ensuring reliable power delivery for optimized CPU and system cooling.

Specifications

ASIN	B07M5P7VHG
Best Sellers Rank	#34,246 in Computers ( See Top 100 in Computers ) #259 in Computer Case Fans
Brand	ThreeBulls
Brand Name	ThreeBulls
Cable Type	4-pin PWM
Cable type	4-pin PWM
Color	1 to 5,1 Pack
Compatible Devices	Desktop
Compatible Phone Models	No Compatible Phone Models
Compatible devices	Desktop
Compatible phone models	No Compatible Phone Models
Connector Gender	Male-to-Female
Connector Type	4 Pin
Connector type	4 Pin
Customer Package Type	Standard Packaging
Customer Reviews	4.6 out of 5 stars 4,294 Reviews
Indoor Outdoor Usage	Indoor
Item Length	40 Centimeters
Item Shape	Round
Manufacturer	ThreeBulls
Model	8541606340
Number of Items	1
Number of Pins	4
Other Special Features of the Product	Braided
Outer Material	Nylon
Part Number	8541606340
Recommended Uses For Product	Connecting and extending power supply to PC case fans, particularly suitable for 4-pin and 3-pin fans in desktop computers.
Special features	Braided
UPC	786705448292
Unit Count	1 Count
Wattage	1 kWh

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AR$48676

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered 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 Argentina.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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