4-Port, 4K (UHD) Quad-Monitor DisplayPort-to-HDMI KVM Switch with USB Hub


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Video Type: DisplayPort to HDMI
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D2H-4P-Quad is a dedicated multi-platform KVM switch capable of managing four 4K computers through a single, central workstation. Built with two ultra-HD ready HDMI outputs, the D2H-4P-Quad is the first Displayport switch on the market to offer full video emulation directly from the device. Up until now, DisplayPort switches lost emulated picture when disconnected from monitors, leading to confusion and disorganization upon reconnecting. With D2H-4P-Quad, full EDID-assisted HDMI video emulation ensures visual workspaces and screen resolutions are remembered every time: simple!

The D2H-4P-Quad is DisplayPort 1.2 and HDMI compliant, supporting screen resolutions up to 4K Ultra-HD (3840x2160 @ 30Hz) for remarkable and responsive video emulation. Additionally, the D2H-4P-Quad is USB peripheral-friendly, compatible with printers, keyboards, and mice. The D2H-4P-Quad is also easy to control with both a simple front-panel interface, as well as RS-232 functionality.

D2H-4P-Quad Application
D2H-4P-Quad Rear

D2H-4P-Quad Features & Benefits

  • Full EDID video emulation via HDMI output
  • KVM control between four connected computers from a single workstation
  • Supports resolutions up to 4K (3840x2160 @30Hz)
  • DisplayPort 1.2 and HDMI compliant
  • Zero pixel loss with TMDS signal correction
  • Supports all USB 2.0 devices, including keyboard and mouse
  • Supports Windows, Mac and Linux
  • Optionally rack mountable
  • Hot key commands for quick channel selection
  • Independent (asynchronous) switching of KVM and peripheral USB ports; users can scan a document and save in another computer
  • Complete KVM emulation for error free booting
  • Front panel keys for manual switching
  • Full HDMI support and backwards compatible with prior DisplayPort versions


The D2H-4P-Quad offers simplified management between four DisplayPort equipped computers' USB 2.0 outputs. Keyboards, mice, and other connected USB devices can be swtiched between with ease. This dynamic KVM console can be controlled via hot keys or RS-232 commands, as well as directly through the console's easy-to-read front panel.


The D2H-4P-Quad features EDID Pass-Through technology and source recognition, which enables smooth and efficient switching in virtually any scenario. This plug-and-play EDID functionality makes set up hassle free and simple.


The USB keyboard and mouse emulation utilized by D2H-4P-Quad provides quick source switching via keyboard hot keys. D2H- 4P-Quad simulates the presence of a keyboard and mouse for every attached computer through a USB cable. This essential function simulates keyboard, video, and mouse control for all connected computers, so switching between each is kept seamless and completely uniterrupted.


The D2H-4P-Quad has a broad range of applications, but the main function is to centralize the access of up to four computers that support DisplayPort displays in a single workstation. Not only does it function as a KVM console, but it also supports USB 2.0 functionality. This allows users to access nearby USB device, including those not supported by other KVM switches. The D2H-4P-Quad is the ideal solution for medical, industrial, studio and defense applications, where it is not practical or safe to have multiple CPUs in the vicinity of the workstation.

  • Server hubs
  • Retail spaces
  • Educational facilities
  • Airports
  • Dealer rooms
  • Hospitals and medical offices
  • Control rooms
  • Audio/Video Presentation Spaces
  • Hotels and Resorts


USB/KEYBOARD: Hot keys enable the user to switch and control all the different functions of the KVM switch.

RS-232: Any external device or program supporting RS-232 can control the D2H-4P-Quad. The D2H-4P-Quad uses a very simple protocol that enables easy integration with other devices.


INDEPENDENT SIMULTANEOUS DEVICE SELECTION: Flexibility is key with the D2H-4P-Quad. It enables the use of a USB keyboard and mouse of one computer while other USB peripherals such as scanners and printers are connected to other computer sources. D2H-4P-Quad maintains the ability to switch all connected devices to any one of the computer sources as with any other KVM switches.

D2H-4P-Quad-S Package Includes

SmartAVI D2H-4P-Quad-S Package Contents

  • (1) D2H-4P-Quad 4-Port Quad DP In / HDMI Out KVM
  • (1) PS5VDC4A Power Supply
  • (1) Quick Installation and User Guide

SmartAVI D2H-4P-Quad-S Specifications

FormatDisplayPort 1.2, HDMI
Link Rate5.4 Gbps/lane
Input Interface(4) DisplayPort (female)
Output Interface(4) HDMI (female)
ResolutionUp to 3840x2160 (@30Hz)
DDCFaux transaction mode option over Aux channel
Input EqualizationAutomatic
Bandwidth Frequency10.2Gbps
Signal TypeUSB 2.0, 1.1, and 1.0 w/ internal hub
Input Interface(4) USB Type B (female)
Output Interface(2) USB 1.1 Type A (female) for keyboard and mouse

(2) USB 2.0 Type A Transparent (peripheral hub)
Front PanelTactile Switches, with Seven Segment Display
Serial RS-232Via Control @ 9600 bps
Hot KeysVia Keyboard
EmulationKeyboard, Video and Mouse
PowerExternal 100-240 VAC/ 5VDC4A @ 20W
Consumption20 W (Max)
Dimensions1.75" H x 6" D x 12" W
Weight3.5 lbs
ApprovalsUL, CE, ROHS Compliant
Operating Temp.-5 to +35°C (+23 to +95°F)
Storage Temp.-4-185°F (-20-85°C)
Humidity5 to 90% (No Condensation)
Question: Warranty?
Answer: Thank you for your inquiry,

The D2H-4P-QUAD includes a 1 year limited warranty.

Question: ce produit permet il de diffuser n'importe quelle source DP sur n'importe quelle sortie HDMI?
Answer: Thank you for your inquiry,

If I understood your question correctly, yes, the SmartAVI D2H-4P-Quad allows you to connect to any DP input sources to switch between, which would then be outputted onto your monitor(s) over HDMI.

Question: My monitors and computers are DisplayPort. Can I use a HDMI-to-DisplayPort adapter cable without losing functionality?
Answer: Thank you for your inquiry,

You can indeed use a HDMI-To-DisplayPort adapter like the C2G 54179 without loosing any native functionality in the D2H-4P-QUAD. That being said, HDMI does not carry some of the signals supported in the DisplayPort protocol like power transmission, data transmission, and daisy-chaining monitors.

Also please note, the D2H-4P-QUAD takes in DisplayPort Inputs, but the output is HDMI.

Depending on your application, here are a couple of other KVMs you may want to also consider:
1) SmartAVI HDN-4QuadS - 4 port Quad Monitor HDMI KVM Switch (HDMI to HDMI)
SmartAVI DPN-4Quad-S - 4 port Quad Monitor DisplayPort KVM Switch (DisplayPort to DisplayPort)

Question: Hi there, I have 4 Predator 34in curved monitors - Display port and HDMI - am I right in thinking that this switch will allow me to connect 4 computers to it.. and utilise all 4 monitors on 1 PC. ( so extended desktop) with 1 Keyboard and mouse ? thanks Matt
Answer: Thank you for your inquiry,

Apologies for the delay while we checked on G-Sync support with the manufacturer.

Unfortunately the D2H-4P-QUAD will not support 3440x1440 at 60 hz.

You may be interested in the UHDN-4P-QUAD instead - the UHDN series supports resolutions up to 3840*2160 at 60Hz.

"I have no reason to suspect why it would not support the the Nvidia G-sync or that particular monitor, but regarding resolution it is powerful enough to display it."

If you were looking at the D2H series because your computer is outputting DisplayPort only but you would like HDMI, you can simply use a DisplayPort to HDMI cable or adapter(s) like this C2G unit.

Question: I have two pc's that are sharing 3 monitors. The pc's use DisplayPort out and the Monitors are DVI in. I need a KVM that will switch which pc is driving the 3 monitors. I'm having difficulty finding a setup for this. Can you please point me to the hardware that can switch in either DVI or DisplayPort (ideally DisplayPort).
Answer: Thank you for your inquiry,

You could use the Adder DDX10 KVM Switch Matrix, which features DVI user stations and DisplayPort source dongles, as a 2-Port Triple-monitor DVI to DisplayPort KVM:*The Adder DDX Matrix allows you to group multiple KVM dongles (transmitters) & User stations (receivers) to form multi-display 'Computers' and 'Consoles', which automatically opens up all the relevant displays when connecting to a source pc.

Alternatively, as far as a standard KVM triple-display DP KVM with adapters, we would actually recommend a DisplayPort to HDMI KVM switch, like this SmartAVI D2H-4P-Quad (note, this unit is for 4-monitors, but you can use it as a triple monitor by just plugging in 3 video cables for the output and per source), with HDMI to DVI adapters on the output side for your monitors. The reason we would recommend that path is that DisplayPort to DVI adapters are more prone to issues with KVMs, which we would face going with a DisplayPort or DVI based KVM switch.

Please let us know if there is anything else we can help you with!