Excellent product
The product is well made, the base which is held at the rail is made of blue anodised aluminium. The copper heatsink on top offers a large contact area and can be turned to the left or right. The heatsink is supplied with thermal strips of different thicknesses, depending on the RAM model. There is also thermal paste and a hexagonal key to screw it on.
The product is compatible with DDR, DDR2, DDR3 and even DDR4 RAM! However, it is sometimes necessary to adapt the heatsink to the strip, by removing the one that is already present for example.
Good cooling was found.
In short: I recommend it.