Raspberry Pi 4 Case with Heatsinks and Case Holder RPI Shell Supporting Camera Installation for Raspberry Pi 4, Raspberry Pi 3 Model B+, Raspberry Pi 3 Model B, Pi 2 Model B & Pi Model B+

Great little Pi 4B, Learn on the great computer, code bitcoin lighting nodes.

This is a nice sturdy heat sink. Took Elliot's advice and sanded the paint off the contact points. I have not overclocked the pi. Running a 24/7 4-camera Shinobi setup as well as qbittorrent through OpenVPN and it stays at a constant 46C in a 21C/70F room. The device is warm to the touch and is comfortably held in the hand (my IR thermometer give a reading between 35-37C). The heat can be felt on front and back and over the whole sink with the obvious warm spot over the CPU. It is connected to the network via CAT5 with wifi turned off, headless, and booting from a USB3 SSD.Unlike some other reviewers, I think the contact is tight with the chips. If I squint and peek in there I can see the thermal pads have bulged slightly along the edges.

Seems to keep me under 52C which is acceptable fro passive cooling. I didn't want fan noise and I am not an overclocker. It like that it does not block access to anything but it does provide good protection for the board. It is solid aluminum and even comes with the wrench needed to assemble it. Simple & low cost, just what I wanted.

Great product at great price! Does a wonderful job. Note that if you are using in a heavy use application it does get really hot.

Be careful with small fan coolers, they are really loud. You can kill mosquitoes or break some wine glass with those little coolers and his awful sound, you definitely don't need these 6°c of difference.32°c fan coolered it's great, but 38°c passive, without vibrations, sounds, and eternal it's priceless. Quality of this product it's amazing, looks sensual too.

Fit and finish is good, but the gap pad for the RAM and USB Host Controller is too thin. When assembled I can see light between the tops of the chips and the bottom of the pad (pad was mounted to heat sink before assembly).Honestly, this is probably not a big deal. I doubt the RAM dissipates much power by itself. As for the VL805 USB host controller, I see on Via's website the part has a large exposed pad on the bottom so I would expect it to dissipate a fair amount of power, but nothing like the processor.The protrusions on the heat sink for these parts are both 2.5mm off of the PCB (mounting surface). Both ICs have a height of about 0.85 mm so that is a 1.65mm gap. I would use 1.75 mm or so gap pad, but the supplied thickness is 1.0 mm.The heat sink protrusion for the processor is 3.2 mm off the board and the height of the processor is 2.3 mm so a 1.0 mm gap pad is fine here.