StarTech.com 2-port Mini DisplayPort KVM Switch - USB 2.0 - 4K at 60Hz (SV231MDPU2),Black

TL;DR version - it doesn't work properly, I'm returning it. For those who want the background - I've replaced an old Acer 1920x1080 monitor that was connected to two PCs via an Iogear 2 port HDMI switch. The whole setup worked fine, but I was given a Samsung 4K monitor and decided the extra screen real estate was going to be useful. Now, I understood that there was likely to be problems driving this monitor through the HDMI switch, which indeed is true - it won't show above 1920x1080 - so I knew I was going to need to drive it via DisplayPort. My first problem was trying to find a DisplayPort switch that was under $500 that claimed to support 4K resolutions (i.e. 3840x2160) - most seem to top out at 2K. You can imagine my delight therefore when I found this thing. Swiftly ordering it, I waited impatiently for it to arrive. About an hour ago it lands on my doorstep and I unpack it. First surprise...um...where's the power adapter???? It would appear not to have one, and no option to use one either, so I'm guessing it's bus powered via USB. Okay, so I plug it all in using the provided MiniDP/USB KVM cables, reboot both machines, and then log in. Second surprise: the Samsung monitor immediately fires up telling me that it's at a 2K resolution, and the native resolution is 3840x2160 so please adjust my PC accordingly. Fair enough, so I go to Windows 10 settings, and that tops out at 2K as well. I hum and hah for a while, then dig out a couple of mini DisplayPort cables I've used in the past and a mini DisplayPort to full DisplayPort cable. I unplug the KVM miniDP cables, and use mine. Third surprise: nothing. There's NOTHING on the screen. Go in to Windows settings, and it doesn't even know the second display is there. I start tearing hair out, which is impressive because I don't have a lot left. I unplug everything, then just for giggles, plug each PC in directly to the Samsung monitor using my cables. Sure enough everything is fine and dandy - a lovely crisp 3840x2160 image. Sooooo... even though the little bit of paper in the box clearly states "Maximum Resolution 3840 x 2160 (4k @ 60Hz)" it's obviously telling porkies. I guess I should learn - you get what you pay for in life, and this was cheaper than all the others for a reason - it doesn't do what it says it should do. I'm returning it, and I can't recommend this to anyone with a 4K monitor. If you've got a 2K monitor then it's maybe, probably, possibly, fine, but for me and my needs it's basically a paperweight. Thank goodness for Amazon's returns policy.

I have the Mini DisplayPort version, switching my LG 34UM95 between my PC and MacBook. It drives my display perfectly at 3440 x 1440 @ 60 Hz. I have a Model M keyboard with a USB converter, a Microsoft wireless mouse, and a chain of USB hubs with a webcam and other assorted stuff hung off of it, and everything works fine. The "Scroll Lock twice to swich displays" feature does not work; I'm not sure if this is because of the keyboard I am using or because I am using it with a Mac. For what it's worth, it doesn't work from the Windows side either. I haven't tried the bundled software but you might want to give that a shot if you want to put the KVM somewhere where the button on the front is inaccessible. The KVM does not do any sort of emulation of display, mouse, or keyboard; the active computer will behave as if everything is directly connected to it (it will see the monitor's model number and the keyboard and mouse manufacturer instead of generic devices) and the inactive computer will behave as if nothing is connected to it, like the cables have been unplugged. This works out for my use case because it means everything migrates over to my laptop's screen when I flip the main display over to the PC, but it may not be what you want, if you have a computer that behaves badly if a keyboard or display isn't connected when it is booting up. The case is metal and it feels pretty solidly built. It could be heavier; the weight of the cables can easily make it rest off-kilter if it is not positioned carefully. It came with two 6 foot USB and Mini DisplayPort combination cables; if that suits your setup, all you'll need is a cable to connect it to your display. The ports for connecting to the computers are on the back of the unit but the ports for the keyboard/mouse/additional USB are on the front; this is kind of annoying and my desk would look a little less messy if those cables were in the back. The unit appears to be powered by and senses the presence of connected computers through the USB connections; when I disconnect the USB from my laptop, it will automatically flip to my desktop.

Anyone have any idea whats going on here? Here's the setup: A mac pro, and a Gaming PC. Fist of all, for some reason, I only get video for the PC on Port 2. Mac Pro works fine on Port one or two. Being that the PC doesn't use MDP, I had to use a MDP to Display port cable for the PC. No again, this only work on PC port 2. If I switch, the Mac will work on either, but the PC wont work (show video) on Port 1. Weird huh? Also when the PC is on Port 2 - its fine, until I start gaming -- this creates sparkles on the screen, and occasionally the monitor gives out, and come back on like every 1-2 minutes. (It blacks out). This version of the KVM does not have an AC plug to give it extra power. I'm not sure what kind of issue this is... I am using a Samsung UHD monitor Any help appreciated.

S2716にはDP入力が一つしかなく、HDMIでは３Dvision動いてくれないのでＰＣ新調（追加）の際に当品を検討するもレビュー評価見てためらっておりましたがアマゾンの在庫が１～３をフラフラしてる日があったので新しいロットを期待してポチってみました。PCからはCableCreation 4K対応 Mini DisplayPort to DisplayPort ケーブル 金メッキ 0.9Mにて接続、 手持ちのMiniDP→DP変換をかまして使用中だったDPケーブル（1.2ｍ程度？）でモニタへ繋いでPC1、PC2ともWQHD144Hｚ表示及び３Dvisionでの３D表示及び切り替え出来てます。（３Dエミッタはそれぞれに接続） SCLKｘ２のショトカも問題なくUSB端子に繋いだG502、G413、3ペダルのフットスイッチも切り替え問題なし、見失うことも今のところは無し。マウス独自機能には非対応らしいですがマウス内蔵メモリに保存するタイプならたぶん大丈夫？ ご愛敬としては切り替えの度に「G-Syncモニタが接続されました」と通知されることくらいです。 あとは一ヶ月～数ヶ月でPC1ポートがお亡くなりになった方が多いようなので耐久性の検証しつつ問題が起きたらレビュー更新しようと思います。 当方環境に置いては目的通り使用できておりリーズナブルで良いモノだと思います。 2台ともオフから電源入れた方に連動して画面出ますしUSBも動きます。（オフの方に事前切り替えは出来ない） 注★当方４K環境は持っていませんので４K環境の参考にはなりません 144HzのWQHDで３D表示＆切り替え出来てるので行けそうな気はしますが４K＿60Hｚの信号でどうなるか分かりませんので...他の方のレビューを参考になさってください 環境 PC1 Z77H2マザー、i7、GTX980 PC２ DELL AurolaR8 、RTX2070 ３D Visionエミッタは旧型付属とVision2付属（同じもの？） 長持ちしておくれ～

La web dice que ofrece una resolución 4K (3840x2160) pero el manual especifica que la resolución máxima es de 2560x1600

Le produit est de belle qualité, avec un boitier en métal et des connecteurs bien fixés. Même si StarTech ne le supporte pas officiellement, ce switch KVM supporte le MST (MultiStream Transport) sous certaines configurations. Dans mon cas (GTX970 de la marque EVGA + 2 écrans Dell U2515H chaînés en DisplayPort), cela fonctionne très bien. Attention, si vous utilisez le chaînage DP, la limitation "4K" du produit concerne le flux total des 2 écrans. Dans mon cas, ces 2 écrans ont une résolution native de 2560x1440 mais ne peuvent fonctionner qu'en 2048x1152 avec le switch KVM (2048 * 2 = 4096 = 4K). Mon autre machine reliée au switch KVM est un PC portable (Lenovo T430). Alors oui, le changement de source sur le switch KVM entraîne un redimensionnement des fenêtres sur l'écran intégré du portable et le rebasculement sur les 2 écrans ne redimensionne pas automatiquement les fenêtres (les fenêtres du PC de bureau ne bougent pas, elles). Mais c'est un inconvénient qui techniquement ne pourrait être réglé que par les pilotes graphiques du PC portable, et à ma connaissance aucun PC portable ne mémorise le dimensionnement et l'emplacement des fenêtres d'un moniteur externe.

So I asked the question, if this could run 4k UHD @ 60hz. I can confirm, I have it working with my Macbook Pro 15inch 2014 and My windows PC on my LG 4k UHD monitor @60hz.I used the cables supplied to connect to the computers and I purchased this cable to connect the KVM to my monitor https://www.amazon.co.uk/gp/product/B00HNF0L2C/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1 I ordered the Mini displayport version which support DisplayPort 1.2 protocol.

Entgegengesetzt der beiliegenden Anleitung kann der Switch wirklich 4K, allerdings nicht mit 60hz. Das Arbeiten bei 30hz ist eine Zumutung, Spielen habe ich gar nicht erst ausprobiert. Den Switch schicke ich zurück und schaue mir lieber eine Softwarelösung an. Getestet mit einer Geforce GTX 1060 im PC und einem HP EliteBook, angeschlossen an einen LG Electronics 24UD58-B Monitor unter Windows 10, verbunden per DisplayPort.