4 Port KM Switch, USB Switcher with USB HID, USB 3.0, Hotkey Switching, Unit Cascading, and IR Remote/ Serial Control, USW-K334
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Amazon.com: OREI USB 3.0 4x4 Matrix Peripheral Sharing Switch, Share 4 USB Devices with 4 Different Computer Hosts PC, Printer, Scanner, Mouse, Keyboard, Mulitiple Displays Monitor - IP/Remote Control : Electronics
Amazon.com: KVM Switch with Serial Port Control, 4K@60Hz 4 in 1 Out HDMI KVM Switcher Box for Share Mouse Keyboard and Monitor, Can Work with Pi-kvm, Compatible with Windows/Linux/Mac System : Electronics