Came without instructions. Previous bad reviews popped up in my mind, but . How difficult would it be to use KVM? The answer in this case is VERY. Unless you want to use it with a monitor, a computer, no keyboard and no mouse. Despite online resources, I could not see a keyboard. (wired or wireless) and display the selected input for more than a few minutes. In 10 minutes tuned to input #4 it switched back to input #1 3 times. So I'm bringing it back and am now looking for something that actually works.
4 Port USB 3.0 Switch Selector - Pubioh KVM Switch for Mouse, Keyboard, Printer, Scanner - 2 in 4 Out Sharing Box with Switch Button and 2 USB 3.0 A to A Cables
11 Review
NEWCARE HDMI KVM Switch: 4K@60Hz, 2x1 HDMI2.0 Ports + 3X USB KVM Ports - Share 2 Computers on UHD Monitor, with Wireless Keyboard and Mouse Support - USB Disk, Printer, USB Camera Compatible
10 Review
CKL Quad Monitor HDMI KVM Switch 4 Port 4K@30Hz with Cables - Extended and Mirrored Display Support for Windows, Linux, and Mac
11 Review
TESmart 1080P 60Hz USB VGA KVM Extender Over Cat5e Cat6 Ethernet Cable - Long Range 984ft/300m (Sender+Receiver)
10 Review
Zalman Z3 M ATX π» Tower Computer: A Compact and Powerful Machine
77 Review
Computer case be quiet! Pure Base 500 black
32 Review
Fractal Design Node 304 - Black - Mini Cube Compact Computer Case - Small Form Factor - Mini ITX β mITX - Enhanced Airflow - Modular Interior - Includes 3x Fractal Design Silent R2 120mm Fans - USB 3.0
42 Review
Computer case Deepcool Matrexx 55 black
55 Review