Beelink SER9 VESA/under-desk mount.

This is a mount for installing the Beelink SER9 under a desk. It can also be installed on a 75mm VESA mount.

No support required.
You will need four 15mm M2 bolts instead of the original M2 bolts used at the bottom of the case. The small bolt holder included in the model allows you to store the original M2 bolts and rubber sealing inside the PC. You can secure the mount using a small tab to prevent it from moving.
Depending on your setup, you can use the version designed for front-to-back installation or the one for side installation.
The gap near the air intake has been widened slightly, which improves cooling efficiency. When the PC is detached from the wall-mounting part, it can be placed securely on a flat surface without removing the bolts.