Can a hat be stacked on top of this one?

Physically, yes. The female GPIO header allows pins to pass through, so I used a header extender to stack this on top of a Innomaker sound DAC HAT. Looks great on top of their acrylic case. However, I'm still tracking down the pin usage to ensure that there are no conflicts between the two products (which led me here). So far, I've learned that the Argon One case uses GPIO pin #4 as an input for power on/off. Most likely, the fan HAT uses the same.

What did you use to mount it? Did anyone get any mounting hardware?

I just pushed it down on the headers(pins). It is not meant to be mounted to the case.

Can the fan control software be loaded/configured with a headless setup via ssh? Or do you have to have a monitor installed to configure the software?

ssh sould be fine to configure fan

What is the dimension from the bottom of the gpio connector to the top of the fan?

Another Dimension issue; One screw holding the 40mm fan to the Argon board beside the blue speed leds had the nut hit my RPi4 heatsink, so i omit the screw. It depends on exactly how you stick on a heatsink, & what size it is. This has been No problem.

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Argon Fan HAT for Raspberry Pi 4 & 3-40mm PWM Fan, Power Button

Argon Fan HAT for Raspberry Pi 4 & 3-40mm PWM Fan, Power Button

Product ID: 167977979

Details

Air Flow Capacity
4.34 Cubic Per
Brand
Argon Forty
Compatible Devices
Server
Cooling Method
Air
Material
Plastic
Maximum Rotational Speed
5000 RPM

⚡Integrated multi-function power button

🌀40mm PWM fan, 5000 RPM max speed

🧊4.34 CFM airflow for efficient cooling

€ 31.16

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Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧊 Keep your Pi cool, controlled, and connected—because overheating is so last season.

COMPACT YET ROOMY - Slim HAT design leaves space for heatsinks and add-ons, perfect for complex server and dev setups.
POWER BUTTON WITH PURPOSE - Safe shutdown, reboot, and forced power off at your fingertips—ultimate control for your Raspberry Pi projects.
WHISPER QUIET PERFORMANCE - Operating at just 48 dB, it cools efficiently without disrupting your workspace vibe.
SMART COOLING ZERO OVERHEAT - PWM-controlled fan adjusts speed automatically to keep your Pi cool and quiet under pressure.
ONE CLICK SETUP INSTANT CONTROL - Single-command installation script gets your fan and power button running in seconds—no hassle, no fuss.

The Argon Fan HAT is a compact cooling solution for Raspberry Pi 4 and 3 featuring a 40mm PWM fan with up to 5000 RPM and 4.34 CFM airflow. It includes a multi-function power button for safe shutdown and reboot, supports software-controlled fan speed for quiet, efficient cooling, and installs easily with a one-line script. Designed to fit alongside heatsinks and accessories, it’s ideal for servers, media centers, and development projects.

Specifications

ASIN	B07Y9LFP1J
Air Flow Capacity	4.34 Cubic Feet Per Minute
Best Sellers Rank	#185 in Computer CPU Cooling Fans
Brand	Argon Forty
Brand Name	Argon Forty
Compatible Devices	Server
Cooling Method	Air
Customer Reviews	4.4 out of 5 stars 765 Reviews
Item Weight	0.02 Pounds
Manufacturer	Argon Forty
Material	Plastic
Material Type	Plastic
Maximum Rotational Speed	5000 RPM
Noise Level	48 Decibels
Number of Items	1
Part Number	AR Fan HAT V1
Power Connector Type	2x20 pin header
UPC	670924946939
Unit Count	1.0 Count

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