Case for Raspberry Pi 4, ABS Pi 4 Case with Cooling Fan, Pi 4 Heatsink, Simple Removable Top Cover for Pi 4 Model B/ 4B
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AI Verdict
A basic ABS plastic case with a 40mm fan and heatsinks that keeps your Raspberry Pi 4 from thermal throttling, perfect for heavy processing tasks.
You get active cooling, passive heatsinks, and a protective shell. It perfectly solves the Pi 4's notorious overheating issues during heavy loads like gaming or media streaming. The pop-off top cover makes it versatile enough for occasional hardware tinkering.
If you need absolute silence, look for a passive cooling aluminum armor case instead of this active fan setup.
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Critically weak dimension
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Pros
- Drops CPU temperatures by 15-20°C under load compared to a bare board
- Removable top cover gives instant access to the 40-pin GPIO header and camera ports
- Includes three aluminum heatsinks with pre-applied thermal adhesive
- 40mm fan plugs directly into the 5V and GND GPIO pins without needing a separate power supply
- Precise cutouts for the dual micro-HDMI, USB-C, and audio ports
Cons
- The 40mm fan develops a high-pitched whine after a few months of 24/7 use
- Fan wires block access to some GPIO pins if you don't route them carefully
- ABS plastic feels thin and attracts fingerprints easily
- Included thermal pad backing is notoriously difficult to peel off without tearing the pad
Dimension Scores
The combination of a 40mm fan and three heatsinks effectively stops the Pi 4 from thermal throttling under heavy loads.
The tiny 40mm fan runs constantly and produces a high-pitched whine at 5V.
It uses standard injection-molded ABS plastic that protects the board but feels thin.
The fan wires just float loosely inside the case and can get in the way of the GPIO pins.
Best For
- RetroPie emulation builds that push the CPU to 100% and need active cooling
- Desktop replacements where you want the Pi 4 fully enclosed but accessible
- DIY projects where you want active cooling without a heavy metal enclosure
Not Recommended For
- Silent bedroom setups where the 40mm fan noise will be distracting
- Heavy GPIO tinkerers who need a breadboard permanently attached
Watch Out For
- The 40mm fan runs at 100% speed constantly when plugged into the 5V pin — move it to the 3.3V pin if you want it quieter, though it cools less.
- The white and transparent protective films on the thermal pads are incredibly thin and easy to miss, which will insulate your CPU instead of cooling it.
- The fan wires can easily snag on the GPIO pins when snapping the top cover back on.
Full Specifications
| ASIN | B07D3S4KBK |
| Brand | iUniker |
| Color | Black With Large Fan |
| Fan Size | 40 Millimeters |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Case Type | Raspberry Pi |
| Model Name | Raspberry Pi 4 |
| Item Weight | 2.47 ounces |
| Manufacturer | iUniker |
| Cooling Method | Air |
| Item model number | IU-RP-045-4B |
| Product Dimensions | 4.72 x 2.36 x 1.57 inches |
| Motherboard Compatability | Mini ITX |
| Is Discontinued By Manufacturer | No |
What Buyers Say
The biggest surprise with this case is how drastically it drops temperatures—users report going from 80°C to 45°C under load. The snap-off top cover is a massive hit for people who occasionally need to wire up sensors but want a clean look the rest of the time. The 40mm fan is a polarizing topic; many buyers end up moving the fan connector from the 5V pin to the 3.3V pin to silence the annoying whine. The included thermal pads are also notoriously frustrating to peel, with a nearly invisible transparent layer that traps heat if left on.
“It keeps my Pi from melting while running Home Assistant, just plug the fan into the 3.3v pin unless you want it to sound like a tiny drone.”
Common Praise
- Drops CPU temps by over 20°C during RetroPie gaming sessions
- Top cover pops off easily without needing a screwdriver
- Cutouts for the micro-HDMI and USB-C ports align perfectly
- Includes all necessary screws and even a tiny screwdriver
Common Complaints
- 40mm fan develops a loud buzzing sound after a few months
- Thermal pad backing film is nearly invisible and hard to peel
- Fan wires dangle loosely and block the camera ribbon cable slot
- Plastic tabs holding the case together feel brittle if opened repeatedly
Ownership Tips
- The fan bearings tend to dry out and get louder after 3-4 months of continuous 24/7 operation.
- Dust accumulates quickly right under the fan intake, requiring a blowout every few weeks.
- The plastic clips holding the top cover loosen up if you remove it daily.
Frequently Asked Questions
Does this case fit the older Raspberry Pi 3?
No. The port layout for the Pi 4 is completely different, specifically the dual micro-HDMI ports and USB-C power.
Can I control the fan speed through software?
No, it's a basic 2-pin fan. It runs at a constant speed depending on whether you plug it into the 5V or 3.3V GPIO pins.
Do I have to take the case apart to access the GPIO pins?
No, the top cover snaps off completely, leaving the fan attached to the main body while exposing the entire GPIO header.
Are the heatsinks required if I use the fan?
You should use both. The heatsinks pull heat away from the CPU, RAM, and USB controller, while the fan blows that hot air out of the case.
Is the fan loud?
It's noticeable. At 5V, it produces a distinct whirring sound that might annoy you in a quiet room, but at 3.3V it's much more tolerable.
Buying Guide
When buying a case for the Raspberry Pi 4, cooling is your number one priority because this board runs significantly hotter than older models. You have to decide between active cooling or passive cooling. Active cooling like this iUniker case handles sudden CPU spikes better, but introduces moving parts that will eventually make noise. If you plan to use the GPIO pins for electronics projects, make sure the case gives you top-down access without unscrewing the whole assembly.
40mm Cooling Fan
Think of it like a tiny desk fan for your computer chip. It physically blows hot air away, which is mandatory if you're using the Pi for gaming or heavy processing.
ABS Plastic Material
It's the same tough, lightweight plastic used to make Lego bricks. It won't block Wi-Fi or Bluetooth signals like a metal case might.
Removable Top Cover
Like popping the hood of your car. It lets you plug wires into the Pi's exposed pins without taking the entire protective shell apart.
Alternatives
If the fan noise bothers you, search for an aluminum armor passive cooling case which uses the entire metal body as a giant, silent heatsink.
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