This 4x3 Triple Monitor KVM Switch can easily integrate cross-platform computer devices and greatly simplify the devices management. Support managing a triple-display multimedia workstation. If you connect 3 HDMI ports of the same PC to one group of input ports on the KVM, you will realize 3-screen extended display or copy display. It has the same effect as connecting the PC directly to 3 displays. The KVM also supports displaying different PCs on 3 monitors. This KVM supports using USB hubs and USB keyboard and mouse. It also supports locking L/R audio and USB 2.0 devices to a fixed PC. Support several switching modes. You can switch input ports with front panel keypad, IR signals, keyboard hot keys and RS232 commands. At the same time, with EDID emulators in each input port, it can keep PCs always having correct display information.

• Using 3 monitors, 1 set of keyboard and mouse to control 4 computers.
• Support resolution up to 3840x2160@60Hz 4:4:4.
• HDMI 2.0 compliant.
• HDCP 2.2 compliant.
• Support HDR 10 and Dolby Vision.
• Support 2 display modes.
• Support Unix/Windows/ Debian/ Ubuntu/Fedora/ MacOS X/ Raspbian/ Ubuntu for Raspberry Pi and other Linux based systems.
• Support locking L/R audio and USB 2.0 devices to a fixed PC.
• With EDID emulators in each input port, it can keep PCs always having correct display information.
• Support function settings on the front panel which can switch ports, turn on/off auto scan, change hot key trigger, lock audio and USB 2.0 and other functions.
• Support keyboard and mouse pass through mode to improve mouse and keyboard compatibility.
• Support IR signals, front panel buttons, keyboard hot keys and RS232 commands to switch input ports.

Support Unix/Windows/Debian/Ubuntu/Fedora/Mac OS X/Raspbian/Ubuntu for Raspberry Pi and other Linux basic systems

• 1 x 4 Port Triple Monitor HDMI KVM Switch
• 1 x DC 12V Power Adapter
• 1 x IR Remote Control
• 1 x IR Extension Cable
• 4 x KVM (HDMI+USB) Cables
• 8 x HDMI Cables
• 1 x 3 Pins Connector (For RS232)
• 2 x Rack-ears
• 1 x User manual

This product requires each input device has 3*HDMI port + 1*USB-A port. And each monitor needs to have an HDMI port. You may need the extra adapter or docking station if you do not have the RIGHT ports.
We also have the following dual-screen models so you can make the correct choice for your computer's port type.
HDK0402A1U--HDMI&DP port dual monitor KVM switch
HKV0402A1U--HDMI&VGA port dual monitor KVM switch
PCK0402A1U--DP&USB-C port dual monitor KVM switch
HCK0402A1U--HDMI&USB-C port dual monitor KVM switch
Please contact online service workers to get professional suggestions if you are not sure how to choose a proper product: service@tesmart.com

1 x 4 Port Triple Monitor HDMI KVM Switch
1 x DC 12V Power Adapter
1 x IR Remote Control
1 x IR Extension Cable
4 x KVM (HDMI+USB) Cables
8 x HDMI Cables
1 x 3 Pins Connector (For RS232)
2 x Rack-ears
1 x User manual

Yes. Within 30 days of the product received date you may return products purchased at TESmart online store for a full refund of your purchase price. Products must be returned in their original condition and packaging with all included parts. Please refer the details to: https://www.tesmart.com/pages/refund-policy.