What are the measurements of the stud the knob mounts to? Knob dimensions? Looking to get drawings to use this in a CAD model.

I measured mine and here's what I got: It's a split shaft with splines to help grip the smooth/soft ID of the knob. The OD of the splines and base of the shaft measures 0.227" and the diameter at the spline root measures 0.212". The split in the shaft measures 0.043" wide. The total length of the shaft is 0.388" from where it protrudes out of the threaded mount, to the tip. The split in the shaft and the splines are both 0.335" long. I'm eyeballing about a 0.025" x 45 degree chamfer on the tip. Splines are spaced 20 degrees apart; there would be 18 total, but two are missing due to the split in the shaft. I lost the knob, sorry.

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Taidacent 2510-4P 3P Manual 4 Wires 0-5V 12V Fan Speed Controller PWM Speed Control On Off Switch for PC CPU Case Fan with Knob (Solder Connector with Plastic Black Knob)

Taidacent 2510-4P 3P Manual 4 Wires 0-5V 12V Fan Speed Controller PWM Speed Control On Off Switch for PC CPU Case Fan with Knob (Solder Connector with Plastic Black Knob)

Product ID: 499805296

Details

Brand
Taidacent
Color
black
Item Weight
0.01 Kilograms
Material
Plastic
Voltage
12 Volts

⚡12V PWM precision control

🔄Supports 4-wire PWM fans only

🎛️Manual knob for tactile speed tuning

$25.85

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Description

🎛️ Take control of your airflow—because your rig deserves the perfect breeze.

INTUITIVE MANUAL KNOB - Enjoy effortless, tactile speed adjustments with a sleek black plastic knob—no software needed.
PRECISION 12 V PWM CONTROL - Fine-tune your PC or CPU fan speed with exact 0-5V PWM signals for optimal cooling and silence.
ROBUST 3 A CURRENT HANDLING - Supports up to 3A fan current, perfect for most chassis and CPU fans; expandable for higher loads.
COMPACT EASY INSTALLATION - Small 26x20mm footprint with a 7mm mounting hole fits seamlessly into your custom PC builds.
REVERSE SEQUENCE FAN COMPATIBILITY - Easily adapt to reverse-sequence fans with a simple solder jumper—no guesswork, no damage.

The Taidacent 2510-4P is a compact, manual PWM fan speed controller designed exclusively for 12V four-wire fans. Featuring a tactile knob for precise analog adjustments, it supports up to 3A current and includes a unique solder jumper for reverse-sequence fan compatibility. Ideal for PC and CPU cooling enthusiasts seeking customizable, silent operation without software complexity.

Specifications

ASIN	B0BHNC776L
Best Sellers Rank	#456 in Computer Case Fans
Brand Name	Taidacent
Color	black
Customer Reviews	4.4 4.4 out of 5 stars (79)
Display Type	analog
Included Components	1pcs knob fan speed controller
Item Weight	0.01 Kilograms
Manufacturer	Taidacent
Material Type	Plastic
Model	TDJL-ZFC4-1LKM
Part Number	four-wire PWM fan governor
Smart Home Compatibility	Not Smart Home Compatible
UPC	738190909369
Unit Count	1 Count
Voltage	12 Volts

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$25.85

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In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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