100mm Heatsink 100x100x18mm/ 3.94''x3.94''x0.71'' Heat Sinks Radiator for Circuit Board Transistor Semiconductor Devices Control System Multimedia Components Equipment with 16 Fins - Sliver

I used this to help pull heat away from a radiating antenna which would get warm on certain frequencies, and it's been working great so far. The machining is well done, the weight is good for its size, and the aluminum has been holding up well outdoors in what little weather I have.

does what it do, sinks heat

The heat sink has a slight bend to it, and does not sit level. Bend is about 1.5mm across the 100mm length, which is not acceptable.

This was very poorly finished with sharp edges - sharp enough that I had to search for band-aid to cover the damage from the burr-filled fins. Be careful, and it will do what a heatsink does, but might want to have chain-mail gloves on when you open the package.

I paired this to a 100mm fan and zip tied it to my starlink router to keep it cool.

Works like a charm and all I had to do is place it on top of my Thunderbolt-3 Dock which was getting Uber hot. No special glues, tapes, pastes, etc needed.

Heatsinked a video encoder that tended to get too hot sometimes and locked up. The heat sink did the job and I’ve had no more problems.

Good quality, attached it to the back of a Buck converter for insurance.