Ud-12ap-Kit 2port Usb Dvi Audio Kvm W/ Ddm & Active Ddc & 6ft Cable

First off, my use case is a little atypical: 2 workstations in a closet about 65 feet from the desk where the monitor and keyboard is located. I have the KVM in the closet with a DVI extender and a USB extender that run to the desk. This means there is no easy way to trigger the KVM to switch between input 1 and 2. The KVM is not able to accept a hotkey sequence from my directly connected video editing keyboard (it DOES -- as advertised -- work with a directly wired 104 standard keyboard connected to the HID keyboard console input on the KVM.) TECH support is GREAT. I placed a couple of calls to tech support before I purchased and they pointed out my video editing keyboard might require an operating system driver so might not work with this KVM. Guess what? My video editing keyboard is not able to switch KVM inputs. I assumed that all of the standard hotkeys are mapped the same between a standard 104 key keyboard versus my video editing keyboard but obviously not the case. (would be great if you could accommodate as a product request but I do not know how difficult that is). The bigger issue is that the HID keyboard input will not accept a standard keyboard that has a USB hub inserted (for a USB extender). Again this is due to my unique setup.I love the build quality of the KVM and the included KIT components. I had a little trouble getting the setup to work but after pressing the KVM reset button several times at various points during the installation it is working great so far. I can easily rationalize that the difficulty is due to my 'unique' use case (including the fact that my use of a DVI extender-over-CAT5 does not have EDID emulation).So right now I have no way of switching inputs on the KVM short of running to the closet. I'm in the process of trying to find a solution that will emulate a hotkey sequence from a standard 104 key keyboard as if it were connected locally to the KVM. Another solution could be to purchase the accessory IR remote and add some type of IR extender. In short, the KVM is great.... I consider it a limitation of requiring a basic 104 key keyboard but again maybe my use case is pretty off the beaten path

I was looking for a KVM which would support 2500x1440@60Hz. While KVM matching that criteria are numerous for display port and HDMI interfaces, the options for DVI ports are quite limited. Trying to fit converters and adapters and making sure it would work via an HDMI/Display port KVM was not something I wanted to experiment with.I am glad to report this KVM worked flawlessly when equipped with dual-link DVI-D cables (for reference, I used cable matters DVI-D dual link https://www.amazon.com/gp/product/B007NJ0S1W/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 ). I connected non-gaming devices (wired keyboard and a Logitecth M570 wireless mouse). My screen and input devices worked between my Linux box and windows system. I could switch back and forth without losing any of them and the lag between switch was extremely short.After reading the doc, there is a hotkey button that can be reprogrammed to work similarly as other kvm. By default, pressing control+control+1-2 will allow switching between the 2 channel. control+control+k+new_hotkey to reprogram the hotkey button to a new key. I reprogrammed mine to use scroll Lock as it is usually the behavior I am used to. There is also a button on the front panel to switch between preprogrammed hotkey button configuration.The only minor missing features would be: - usb 3.1 support for the shareable front usb ports (only usb 2.0 supported)The 2 port unit is small enough and it look sturdy. Overall very satisfied with this device since this was the only KVM at at a reasonable price range with support for 2560x1440@60Hz via DVI.

I got this KVM expecting that paying extra for a quality product would ease the frustrations that many have with KVMs: switching lag, windows having to re-detect and enable keyboard/mouse drivers, and other little nits. For the most part, I got what I paid for. Switching is easy with the hot keys, Windows and Linux both play well, maintaining their monitor layout and keyboard/mouse settings while switching between the inputs.However, I'm experiencing a terrible issue with audio noise/feedback when attempting to use the switch for audio input/output in addition to KVM. I have a request in with technical support but their initial response was very poor, asking me to restate my problem again so that they could attempt to reproduce. My issue manifests as a humming electrical noise that spikes with mouse clicks and keyboard input. for the most part it is unnoticeable, but attempting to play any sort of game results in a cacophony of random electrical noise that make it unusable. It persists with several pairs of headphones/speakers and is present on both a Linux laptop and Windows desktop, which clearly indicates an issue with the hardware in the KVM.It's a simple workaround to go back to plugging my headphones and microphone directly into each computer, but that's not what was promised. Since I can't find any similar feedback from other users, it seems like I simply lost the hardware lottery and got a unit with a poor audio ground. However, it's been 4 days since my initial email exchange with their tech support, and I still haven't heard back - not even a "we're looking into it".