Apple Studio Display has a unique power connector that seems to be non-removable, but you can remove it using a special tool.

Apple today introduced the Studio Display, a lower-priced 27-inch alternative to its Pro Display XDR. The standalone monitor includes a one-meter Thunderbolt cable in the box, and for customers ...

The Studio Display uses a non-standard power connector on the back, but while it is technically removable, most users shouldn't pull that cable out.

To complete the setup Mangin has also created 3D print files for the Apple monitor which are also available to download and can be equipped with a working 2.5 inch LCD screen.