Intel NUC10 NUC10i5FNHN Home & Business Desktop Mini PC,10th Generation Intel® Core™ i5-10210U, Upto 4.2 GHz, 4 core, 8 Thread, 25W Intel® UHD Graphics, 16GB RAM, 512GB PCIe SSD, Win 10 Pro

If you dont need several hard drives (more than two) or a high end video card then this is what you should buy. It is silent, takes up no space compared to a tower and can be mounted on the back of the monitor (monitor needs Vesa mount) or on a wall/side of desk. Really you can mount it just about anywhere. Its foot print is slightly smaller than a DVD/CD disk, not a player just the disk. With an M.2 drive and 16GB of RAM these things are fast. Even faster with an i5 or i7 processor. They can run two monitors. It uses very little power. Whats not to like.

UPDATE: Vendor resolved issue with great speed.