Not 100% but I believe this cable is pwm to pwm as your video card has within it the ability to regulate fan speed based on temps etc so the output to the fan shroud built into your gpu would already be pwm. Again sorry if I'm not 100% accurate but I believe this to be true.

Does anyone know if this connector/pinout would work to put standard fans in a dell poweredge r230 - the connectors look very similar?

I think this one called mini 4 pin normally see inside the gpu.

My gpu has two spots to plug this into.. it's a rtx 2070 asus card. should i get two of these adapters?

Most vendors use multiple fan connectors to individually monitor the RPM of each cooling fan. Yes you'll be able to use this cable with your graphics card assuming that they were originally used for fans.

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CRJ 4-Pin PWM GPU Fan Adapter Cable All Black Sleeved for Graphics Cards

CRJ 4-Pin PWM GPU Fan Adapter Cable All Black Sleeved for Graphics Cards

Product ID: 408003645

Details

Brand
CRJ
Connector Type
4 Pin
Cable Type
4-pin fan
Compatible Devices
PC
Special Feature
Braided

📏15cm (6-inch) cable length

🔌4-pin PWM micro connector

🖤all-black high-density sleeving

Description

🖤 Power your GPU cooling with stealth and precision!

PLUG PLAY SIMPLICITY - Compact 6-inch length ensures easy routing without cluttering your rig.
RO HS CERTIFIED QUALITY - Eco-friendly, reliable construction meets strict safety and environmental standards.
STEALTHY ALL BLACK DESIGN - High-density sleeving and black connectors minimize cable visibility for a sleek build.
PRECISION PWM SPEED CONTROL - Supports full 4-pin PWM for dynamic fan speed regulation, optimizing cooling and noise.
SEAMLESS GPU FAN COMPATIBILITY - Connect 3-pin & 4-pin fans effortlessly to your graphics card's micro 4-pin PWM port.

The CRJ 4-Pin PWM GPU Fan Adapter Cable is a 15cm all-black sleeved cable designed to connect standard 3-pin and 4-pin PC fans to graphics cards featuring a micro 4-pin PWM connector. It enables PWM speed control for compatible fans, ensuring optimized cooling performance, while 3-pin fans run at full speed. Constructed with high-density sleeving and RoHS compliance, this cable offers a discreet, durable, and eco-friendly solution for professional PC builds.

Specifications

ASIN	B07Q5BTTDX
Best Sellers Rank	#190,865 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #3,095 in Power Supplies (Computers & Accessories)
Brand	CRJ Electronics
Brand Name	CRJ Electronics
Cable Type	4-pin fan cable
Compatible Devices	PC
Connectivity Technology	Wired
Connector Gender	Male-to-Male
Connector Type	4 Pin
Country of Origin	USA
Customer Package Type	sealed anti-static bag
Customer Reviews	4.6 out of 5 stars 400 Reviews
Indoor Outdoor Usage	Indoor
Item Shape	Round
Item Weight	0.04 Pounds
Manufacturer	CRJ Electronics
Maximum Voltage	1.5 Volts (DC)
Model Name	Model 4038
Model Number	4038
Number Of Pins	4
Number of Items	1
Other Special Features of the Product	Braided
Outer Material Type	Heat shrink tubing
Recommended Uses For Product	Monitoring
Special Feature	Braided
Specification Met	RoHS
UPC	720355064181
Unit Count	1.0 Count
Wattage	47 Watts

Reviews

E**E

Excellent Product

30.11.2021

A**.

Great quality product.

2.03.2021

R**M

Your Fan Won't Work Without This

14.11.2022

F**N

fine cable. didn’t work on my Gigabyte motherboard.

10.01.2026

K**F

Works as advertised

15.12.2024

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