“Great solution for the price. Came with sticking pad to place on chip. If you are an over clocker however this is not for you - you must have a fan or prepare to run with the lid off to bring the temperature down. This heatsink will take care of basic cooling if you are using your machine for Linux desktop computing.”
“Fits the top of the CPU perfectly. Just make sure you've received one with the self adhesive patch.
I'm considering mounting a plastic tube around it, and drilling a matching hole in the lid to duct the warm air out.”
“I bought this as a temporary fix while waiting for the Raspberry Pi 4 FLIRC case to appear. Attaches simply and securely and keeps the temperature around mid 50s after several hours in a warm and slightly stuffy loft. Having a small USB desk fan blowing across it and the temperature drops right down to the mid 30s.”