“I have several RPi devices going back to v1. With buster installed this one fires up a lot quicker but that may be Buster not hardware. I haven't had this long but it has lost communication with the usb remote keyboard and mouse several times. I have used the mouse and keyboard for a number of years with the other RPI devices I have. Unplugging and reinserting the usb device sorted that so i suspect the problem is with Buster. Hence only 3 stars. It came with the latest firmware.”