Aluminium Heatsink Case for Raspberry Pi 4 – Obsidian Black

Aluminium Heatsink Case for Raspberry Pi 4 – Obsidian Black


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This anodised aluminium heatsink case will protect your Raspberry Pi 4 and give you the best passive cooling we’ve seen in our extensive testing. It’s great for situations where you want completely silent cooling, like home media centres.

It comes with a thermal pad to provide thermal contact between the CPU and top case, and a handy allen key and set of hex bolts to attach the case together.

The case gives you access to all of the ports, pins, and connectors. You can just about get away with using low-profile HATs and pHATs (those without bulky components on the underside), using one of our booster headers, but be extremely careful not to short any components on the metal top case! The booster headers will stack in case you need to use two for chunky component clearance purposes.


  • Anodised aluminium top and bottom case
  • Heatsink fins
  • Thermal pad
  • Hex bolts and allen key included
  • Access to all ports, pins, and connectors
  • Compatible with Raspberry Pi 4


Follow the brief instructions below or see the Tab

Assembling your heatsink case is pretty easy and should only take a couple of minutes. The first, and most important thing is to make sure that your Pi is powered off and unplugged before you fit the case.

Take one of the thermal pads and peel the protective films off both sides of it (there’s a white film and an easy-to-miss clear film on the other side. Stick the thermal pad onto your Pi’s CPU (the metal square nearest the middle of the PCB).

Sticking the thermal pad to the CPU first is a much better way to position it correctly than trying to stick it to the case. Only use one thermal pad with the Raspberry Pi 4.

Position the top case and then, holding it in place, flip the whole thing over and position the bottom case on the underside of your Pi. Use the four hex bolts and allen key to secure the case.


  • The case is metal and hence conductive, so be careful not to short any components on it, and ensure that your Pi is powered off and unplugged when fitting the case
  • It may be obvious, but the case will get hot in use
  • Dimensions: 87x56x25.5mm

Additional information

Weight 0,2 kg
Dimensions 8 × 4 × 1 cm



Assembling the Heatsink Case

Our heatsink case for Raspberry Pi 4 is a really effective way to silently cool your Raspberry Pi 4, and it looks pretty slick too. Let’s learn how to assemble it!

Assembly takes just a couple of minutes, and all of the tools and bits you need are included with your case.

Because the case is metal, and hence conductive, it’s really important that you fit the case while your Pi is powered off and unplugged, otheriwse you’ll risk shorting components against the case and damaging your Pi!

Assembled heatsink cases

Attaching the thermal pad

Your case comes with a couple of thermal pads, that are used to make thermal contact between your Raspberry Pi 4’s CPU, and the aluminium top case.

Note that you’ll just be using one of the thermal pads on the CPU! Keep the other as a spare.

The best way to apply the thermal pad is to stick it to the CPU on your Pi, rather than trying to stick it to the case, as there’s no way you can position it wrongly this way.

Peel the protective film/paper off both sides of the blue thermal pad.

As well as the white paper on one side, there’s a thin, clear plastic film on the other side, and it’s important to peel this off too, to make proper thermal contact.

Stick the side that had the white paper on onto your Pi’s CPU (it’s the stickier of the two sides).

Thin, clear film on thermal pad

Thermal pad stuck onto CPU

Fitting the case

The top case is the taller piece with the cutout for the Pi’s GPIO pins. Position it on top of your Pi, with the posts lined up with the four mounting holes on your Pi.

Top case positioned

Flip the whole thing over, position the bottom case (make sure the mounting holes are the right way round), and then screw in the four hex bolts using the little allen key that’s included.

Screwing in the hex bolts with the allen key

Your case is now fully assembled and ready to go!

Fully assembled case