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 Micro 4-Pin GPU Fan Adapter Cable - 6-inch (15cm), Black Sleeved - Micro PH (2.0mm) 4-Pin PWM Graphics Card Fan Adapter Cable for Connecting 3-Pin/4-Pin PC Fans

CRJ Micro 4-Pin GPU Fan Adapter Cable - 6-inch (15cm), Black Sleeved - Micro PH (2.0mm) 4-Pin PWM Graphics Card Fan Adapter Cable for Connecting 3-Pin/4-Pin PC Fans

Product ID: 121940436

Details

Brand
CRJ
Cable Type
4-pin fan
Compatible Devices
Desktop
Connector Type
Micro
Special Feature
Braided

📏Compact 6-inch length for perfect ITX and tight builds

🔌4-pin Micro PH connector for precise PWM control

🧵High-density black sleeving for sleek, minimal wire visibility

Description

⚡ Power your GPU cooling like a pro — no compromises, just pure performance!

COMPACT FLEXIBLE - 6-inch length ideal for cramped ITX cases and custom setups without cable clutter
PRECISION PWM CONTROL - Supports full 4-pin PWM for dynamic fan speed management and quieter cooling
SEAMLESS COMPATIBILITY - Connect 3-pin & 4-pin PC fans effortlessly to micro 4-pin GPU headers
SLEEK DISCREET DESIGN - Black sleeved cable blends invisibly into your build for a clean, professional look
CERTIFIED QUALITY SAFETY - RoHS compliant with durable heat shrink tubing ensures long-lasting, reliable performance

The CRJ Micro 4-Pin GPU Fan Adapter Cable is a 6-inch black sleeved cable designed to connect standard 3-pin and 4-pin PC fans to micro 4-pin (PH2.0mm) GPU headers. It supports PWM speed control for 4-pin fans, ensuring efficient and quiet cooling, while 3-pin fans run at full speed. RoHS compliant and built with durable materials, this adapter is perfect for ITX and compact PC builds seeking clean cable management and reliable fan connectivity.

Specifications

ASIN	B07Q5BTTDX
Best Sellers Rank	#643 in Computer Case Fans
Brand	CRJ Electronics
Brand Name	CRJ Electronics
Cable Type	4-pin fan cable
Color	Black
Compatible Devices	Desktop
Connectivity Technology	Wired
Connector Gender	Male-to-Male
Connector Type	Micro
Customer Package Type	sealed anti-static bag
Customer Reviews	4.6 out of 5 stars 460 Reviews
Indoor Outdoor Usage	Indoor, Outdoor
Item Length	6 inches
Item Shape	Round
Item Weight	18.14 g
Manufacturer	CRJ Electronics
Maximum Voltage	1.5 volts_of_direct_current
Model	4038
Model Name	Model 4038
Number of Items	1
Number of Pins	4
Other Special Features of the Product	Braided
Outer Material	Heat shrink tubing
Part Number	4038
Recommended Uses For Product	Connecting and powering fans in computer systems for cooling purposes
Special Feature	Braided
Specification Met	RoHS
UPC	720355064181
Unit Count	1 Count
Wattage	47 watts

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