PiBOX India Raspberry Pi 4 Case with Fan Dual Speed 2GB, 4GB, 8GB Black, with air Vents, with High and Low Speed Option Fan Modular Design, Pi 4B, Pi 4,Camera and Ports ABS (Black)

Absolutely brilliant cover. 3 layer, black, smart looking cover, with great cutouts, must buy for the Pi. Although a little thick, it works perfectly when attaching gpio pins, including the fan which came with the case. Fan is amazing! Almost noiseless, tried 3.3v pin on the pi at 6000rpm, it didn't seem like it displaced much air, but I did some testing Idle temperature - 40° Cpu stress test 100% load - 66° That's really brilliant considering without the case my idle temp was 55° I tried with the 5v, and it's working extremely well, but with some negligible noise. Idle temps - 34° Cpu stress test- not carried out Temperatures of the board were near to 60 degrees before the case and fan. After installation it has dropped to 35 degrees at full fan load. Extremely happy with the product, and the cooling.

The build is good, and it fits perfectly. No loose rattles or anything. The fan was connected to 3.3v header, as per the sticker. But, it failed to work. When pushed by hand, the blades started to move, but slowly. Finally, when connected to 5v, it moved. But it's very low power, and barely able to move air. I have ordered same sized fan, and will probably power it directly from usb port. Also, heatsink is not provided, but that is clearly mentioned in the description so no complaint. Advice to seller, put a better quality fan, and a heat sink, then this will be perfect.

This is a good case for Pi 4 but has a single design flaw. There is a 2mm gap around the top side cover. This is for air intake to improve cooling but actually does the opposite. The air drawn inside gets removed by fan before it can reach the inside of case. I sealed the gap around top cover with cello tape (pic attached). This improved cooling by 10 degrees and also reduced the noise level. Temperature Benchmarks: Case+Heatsinks+Fan (No overclock): 67 degrees max Case+Heatsinks+Fan (2 GHz overclock): 80 degrees max (throttled) Case+Heatsinks+Fan (2 GHz overclock) (After taping the side): 70 degrees max The included fan is a low profile fan (3007) with 7mm thickness. This means there is enough space to attach heatsinks to cpu. Received 2 aluminium heatsinks for CPU and USB controller. You can attach one more heatsink on RAM chip if you have one.

Took 10 mins to install. Works as advertised. Reduce the CPU temperature from 55C to 45C.

The case is really good, just the fan its too loud. Let me give you an example. I have my pi running as a server in a cabinet made of plywood and i can hear the fan. It would be better to have a pwm fan for the pi then this fan. But no offence to the case, its really sturdy and solid build quality.