UD-12AP+HDMI-KIT – 2-port USB HDMI KVM w/Audio pack

2-port USB DVI-HDMI KVM switch packed for HDMI monitor and HDMI system 2 KVM cables included



Special UD KIT for all HDMI systems and HDMI monitors

The Master-IT USB KVM Switch with HDMI series embedded DDM Technology can 100% maintain the compatibility of the shared devices and connect systems. As a result the UDD+ series becomes the most reliable and robust  KVM switch in the world. UD-AP HDMI KIT series provides the premium HDMI video resolution up to 4K (3840 x 2160, 30 hz) on HDMI monitor.

The UD-12AP+HDMI-KIT, as with all ConnectPRO KVM switches, features all-the-time active DDC/EDID communication, which makes this switch Windows 7/8/10 compatible.

Special Configuration Kit of UD-12AP+HDMI-KIT to following user configuration:

  • The monitor Connected to the KVM switch is equipped with HDMI video connector.
  • Both PC systems, laptop, notebook systems or ducking stations has HDMI video outputs.

Features & Benefits

  • Special fine-tuned for mechanical keyboards / gaming keyboards and high performance/ gaming mouse.
  • 100% meet  MicroSoft’s Guidelines for KVM switches  for Windows OS, including Windows 7 and newest Windows 10. 
  • 100% Compatible with all versions of Windows, Linux, and Mac. OS.
  • User select-able multi-hotkey (Ctrl, Shift, Scroll Lock, Caps Lock)
  • Built-in IR remote receiver (Remote not included)
  • RS-232 control and firmware upgradable and unlimited UPLINK for future expansion
  • DVI-HDMI cables interface, supporting links to the HDMI systems and links to HDMI monitor/ display
  • Max video resolution supported 4K (3840 x 2160) at 30hz on one HDMI monitor
  • 3 year Warranty

What’s in the Box?

  • 1 x UD-12AP KVM Switch
  • 1 x 6A-121WP05-US Power Supply
  • 1 x CRJ45-DB9F-5 Firmware/Serial Control Cable
  • 2 x CHDDV-S202-XX 6ft/10ft HDMI to DVI Dual Link cable  ( connecting HDMI systems to KVM switch)
  • 2 x UC-AB-XX 6ft/10ft USB Cables
  • 2 x 3.5 mm  6-ft stereo audio cable
  • 1 x CHDDV2-S202-XX   6ft/10ft  Video Cable, HDMI to DVI Dual Link Cable  (1 for connecting from KVM switch to HDMI monitor)


Technical Specifications



Computer port number


On-Screen Display


Panel button control


Front panel Indication

PC On-line – Green Selected – Red Both – Orange

IR remote control
RC-01 (Sold Separately)

Hot plug-and-play


Hot key control


Auto Scan

Yes ( Hot key )

Selectable scan interval

5, 8, 15, 20, 30 sec ( Hot key )

Beep Sound

On / Off ( Hot key selectable )

Keyboard Type Rate

10, 15, 20, 30 characters/sec ( Hot key )

Cable length ( Max )

5M ( 15ft ) at Console; 5M ( 15ft ) at PC

Video Resolution

4K @ 30hz with  SCU-06 / SCU-10 DVI-HDMI KVM cable and UCDDV2-S202 DVI-HDMI to HDMI monitor

System connectors

Keyboard & Mouse

USB B x 2



Console connectors

Keyboard & Mouse

USB A ( DDM Technology ) x 2



Hub Link Port

USB A ( USB 2.0 ) x 2



44 mm


165 mm


76 mm


530 g


Operating Temp

0 to 60 degrees C

Storage Temp

-30 to 70 degrees C


0~80% RH, NC


Operating Voltage

DC 5V ( 2000 mA )

Power Frequency

50-60 Hz



Additional information

Weight 6 lbs
Dimensions 14 × 10 × 5 in
Display Connection


Peripheral Connection



Cables Included

Power Adapter Included








Photos and Diagrams

How the cabling of DVI-HDMI switches  can make differences in video formats and resolutions.


DVI to HDMI for monitor

HDMI 4K cabling for UD-12AP switch

1. Connecting to HDMI systems : CHDDV2-S202 (video only) or SCU-06 (HDMI+USB)

1. Connecting to HDMI Monitors: CHDDV2-S202

2. Connecting to DisplayPort systems: SKU: CDPD-202-06

3. Connecting to DVI Systems: SKU: DVI-202-0628D

3. Connecting to DVI Monitors: SKU: DVI-202-0628D

Frequently Asked Questions


    • How do I keep my video from flashing every time I change ports on my DVI KVM switch?

      • If you purchased a UD-12+ or UD-14+ after February of 2011, then you should have the ability to reconfigure the way DVI is triggered on a particular port. First, you must switch to the port which is giving you the problem. Once on that port, press and hold that port button on the front of the switch, for about 3 seconds, then release. You should hear a series of 2 or 3 beeps. If you hear 2 beeps, then you’ve changed it from the default and you should now try switching back and forth to see if that has made a difference.


    • What is the hot-key combination for switching ports?

      • On our USB KVM switches with DDM, the hot-key by default is set to Ctrl. This can be changed to other available options with the Hot-Key Select button on the front of the switch. The command sequence for all of them is [hotkey] [hotkey] [#]. All three are tapped consecutively (not simultaneously), with [hotkey] being for example, the Ctrl key and [#] being the number of the port you are switching to.


    • Can I cascade multiple KVM Switches?

      • The USB KVM switches cannot be cascaded.


    • How can I connect my USB KVM switch to a computer that has PS/2 keyboard and mouse ports?

      • As long as the computer has available USB ports, you can use those instead of the PS/2 ports.


    • What if I want to use a wireless keyboard/mouse combo with the KVM switch?

      • That should not be a problem. Make sure that the keyboard and mouse function on all computers when directly connected, then try connecting through the KVM switch.


  • What can I do if I’ve hooked everything up, and although the video works, I get no keyboard and mouse functionality on any of the connected computers?

    • Here are some steps to go through if your KVM switch has lost keyboard and mouse functionality.
      1. Disconnect the power and all cables and connections from the switch. There should be no lights illuminated on the KVM. Let it sit for about 1 minutes.
      2. Reconnect the Power adapter to the KVM, followed by the Keyboard, Mouse, and monitor.
      3. After those console connections are attached, connect one of your computers back to Port 1 of the KVM.
      4. Make sure the keyboard and mouse are working on that computer, then connect the second computer.
      5. At this point, the KVM has been completely reset, and it should be back in operable condition.