Description of ⚙️ Gennel Heatsink Backplate: Efficient Radiator Backplane for Industrial Electrical Applications
Suit for AM4 platform ONLY. Material: Metal (with insulating layer,Don't tear off !). Size: approx 104mm x 68mm x 9mm / 4.1" x 2.6" x 0.3". Hole spacing: 90mm / 3.5". Thread: 6#-32 (Mounting screws not included).
Just what you need if you don't have a backplate for your AM4 motherboard and plan to use the stock cooler (or any other screw-on cooler that doesn't use its own backplate)
I have an ASUS X570 TUF motherboard and couldn't install a CPU fan because the back plate didn't go deep enough through the four mounting holes. This drug worked great. Highly recommended.
Deepcool Castle 360 does not come with an AM4 mount and I lost the one that came with my board. It was the perfect replacement. Be wary of other mounts that are made of plastic or have a non-standard design. The previous mount I bought had the mounting holes too short and didn't work. This is the perfect size and identical to the standard AM4 mount.