Waveshare Metal Box (A) Designed for Official Raspberry Pi Compute Module 4 IO Board Comes with Cooling Fan Mini Computer Chassis Robust and Dust-Proof Nice Looking

Love it but! You cannot directly plug anything into the PCI slot without getting an extender or L shaped adapter. I wanted to put a Drive in the slot and ended up getting a ribbon extender. Would be nice to have a slot to puch out and let a drive stick out or something…

Pros: 1. All-metal construction 2. GPIO extension included 3. PWM fan included Cons: 1. Poorly painted on GPIO side 2. Improperly bent in several places 3. Two lid screws didn't line up (see #2) 4. Lid bows in the middle (see #2) 5. Included fan is defective I purchased this to house my new Home Assistant build. I expected the fan to be loud, so my plan was to control it with PWM. No matter what I did, the fan would not shut off. I could reduce the speed on boot, but I couldn't control it after. The CM4-FAN-3007-B I had on it originally would at least toggle on and off, so I just tried to assemble the case without the included fan. That is when I discovered one of the top's sides had damaged paint. I wasn't too worried about that, but then I found the next issue. The lid requires eight screws, and the last two holes were nowhere near the screw holes on the base. I had to remove the other 6 screws that I had started a few turns, remove the lid, and straighten the bent corner. Thanks to the heavy metal design, bending it was no easy task. Once I got the lid snugged down, I saw the middle of the lid was bowed up about a mm. Apparently, that wasn't bent properly either. It was flat before I tightened the screws. Fast forward to today: I installed a CM4-HEATSINK, and gave the case fan another go. Waveshare support told me the fan wouldn't fit with that heat sink, but it actually does. It just needs shorter screws, which I have. At this point, I'd already moved Home Assistant to another Pi. I started testing with the official Raspberry Pi OS, and a 4-pin 80mm fan I had laying around. The alternate fan worked perfectly. I switched to the fan included with the case, and it just stayed at a low speed all the time. Switching back to the alternate fan proved there was no issue during reboot. The included fan is obviously defective. TLDR: Twenty to twenty-five dollars for a well made case with a good quality fan is acceptable. Although this is a strong case, it's made poorly. The fan isn't good quality by a long shot. Ten to twelve dollars would be a more reasonable price for what I received.

If you use the board as a Dev board - don't bother with the top cover. Also, if you plan on using cards with the PCIe slot, get an extender like https://www.amazon.com/gp/product/B07XK7F6XL or similar

The case was a perfect fit for io board. The screws attached the board and held the case together

The overall quality is lacking in many aspects. The top is loose and sloppy. The Fan Does not work. No room to mount a POE HAT. No Need For the gpio Cobbler really. It should include the atena and wire.

I received this enclosure when I ordered a CM4 module in August 2022 from Pi Shop, had it for 2 months running almost continuously in this case. The bearings in the fan that came with it failed. It is easily replaceable, but waveshare cheaped out on their PWM fans. Ended up ordering a Noctua replacement that I know will not fail prematurely. Rating is solely for the fan issue.

Excellent design. Fits pi 4 FIRST Compute Module 4 IO Board with (2) USB 2.0 ports. X002R7N0QV

It's a great base like case to get you started with the CM4. I've added a USB 3.2 PCIe hat to it already (add tape to any spot that might short out) Now I just have to drill holes for each USB port and file them into rectangular holes that match the USB port. (be creative and modify) I'm probably gonna add a display on top as well. Might also mount a raspberry pi 02w inside with a SIM7600G-H 4GLTE Cellular hat and mount the external antennas to this box. Etc. Endless possibilities !

Un boitier en métal pour carte CM4 IO à moins de 25 euros et qui tient ses promesses (tous les accessoires nécessaires sont livrés, y compris les tournevis) Seul petit point négatif : le milieu du dessus de boitier bombe légèrement au lieu de bien plaquer sur la plaque support quand les vis latérales sont serrées (raison pour laquelle je mets 4 étoiles au lieu de 5).