Amazon.com: ATEN 4x4 USB Hub Switch : Electronics
4 Port USB to DB9 RS232 Serial Adapter - Serial Cards & Adapters | StarTech.com
4-Port USB 3.0 4K HDMI KVMP™ Switch with Audio Mixer Mode - CS1824, ATEN Desktop KVM Switches | ATEN Corporate Headquarters
INOGENI Toggle USB 3.0 Switcher TOGGLE B&H Photo Video
4 x 4 USB 3.2 Gen 1 Industrial Hub Switch - US3344I, ATEN Docks and Switches | ATEN Corporate Headquarters
IOGEAR - GCS1934M - 4-Port 4K DisplayPort KVMP Switch with Dual Video Out and RS-232
The Model 4508 USB Switch Supports Connections between Multiple Hi-Speed USB 3.0 Devices
4 Port KM Switch, USB Switcher with USB HID, USB 3.0, Hotkey Switching, Unit Cascading, and IR Remote/ Serial Control, USW-K334
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
CS1922M - 2-Port USB 3.0 4K DisplayPort + HDMI MST KVMP Switch w/ RS232 (Cables included)
Model 4508 USB 3.0 A/B Switch with RS232 Serial Remote Control, Desktop
IOGEAR - GCS1934H - 4-Port 4K KVMP Switch with HDMI® Connection, USB 3.0 Hub, and Audio
4 Port KM Switch, USB Switcher with USB HID, USB 3.0, Hotkey Switching, Unit Cascading, and IR Remote/ Serial Control, USW-K334
INOGENI Toggle USB 3.0 Switcher TOGGLE B&H Photo Video
INOGENI Toggle
HDMI KVM switch 16 port 4K USB hub, Rackmount, RS232 TESmart
HDMI KVM switch 16 port 4K60Hz Autoscan, Rackmount, RS232 TESmart
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
USB 3.0 Manual 4-port AB Switch 4 computers to 1 device
4509 USB 3.0 A/B Switch with RS232 Serial Remote Control
2 Port USB 3.0 HDMI KVM Switch Dual Monitor 4K 60Hz CKL-922HUA-3 – CKL KVM Switches
