Mini DisplayPort to 2 DisplayPort MST Hub

EDIT: I bought & installed this in Feb 2018. It is now Mar 2020, and it still works perfectly. I just started working from home and bought a second one for my work laptop. It works great too. This MST hub works perfectly with my Microsoft Surface Pro 3 tablet and Microsoft 3Q9-00001 docking station. It works equally well when plugged into the built-in mini Display Port on the Surface tablet, or when plugged into the mini Display Port on the docking station. I am using it with two monitors that have HDMI inputs. I bought cables that go from DisplayPort to HDMI. Here's the link for the DisplayPort-to-HDMI cables (copy it and paste it into your browser's address bar): https://www.amazon.com/gp/product/B01EY67S6O The whole setup works perfectly. It took me less than 5 minutes to setup. Via the Windows 10 "Projector" menu (press-hold the "Windows" key on the keyboard, and tap the "P" key to access this menu), I can choose to mirror or extend the display. "Mirror" displays the same image on all three displays (built-in surface display plus two external monitors). "Extend" allows me to display different windows on each of the three displays. The docking station also has 5 USB ports, allowing me to plug-in a full-size desktop keyboard and mouse. The combination of this MST hub, plus the docking station, makes my Surface Pro 3 a true "desktop" PC!!!

This worked like a charm for my laptop 3 monitor setup. Just make sure your lid is closed on your laptop, most can only handle 3 monitors at a time. I tried the other popular HDMI to Display Port hub and it did not work at all.

This product seems to work okay at first for certain monitors. Your mileage may vary. If you have three identical monitors, this product will probably work. But here are the problems that I unfortunately experienced, and I really hate to write bad reviews but these are the facts: 1. It does not work correctly for 2 of my monitors. It makes the image shifted so there is a black bar, using only 90% of the available pixels. No changes to the display settings in Windows will fix this. 2. It blew out a line of pixels in my 3rd monitor. It does display 100% of the pixels on this monitor, but it caused a random line of pixels to turn purple and this is permanent hardware damage. I don't know if there are other factors that could lead to these problems such as (a) the DP->DVI cables, (b) a power surge, or (c) the particular monitors I am using. But I mean there are published video signal standards and stuff so there is no excuse for incompatibility - who is at fault I don't know. YMMV maybe I got a lemon.

Got the 1 mini display port to 3 display port adapter. I was able to use this to connect to my surface laptop v1 to 2 additional external monitors to extend the display, it was easy to connect, no setup needed . I was previously using my surface laptop with a remote desktop to with 1 external monitor via a mini display port to hdmi cable and I was experiencing a slight lag when I used remote desktop. I've noticed that since using the display port inputs on the external monitors now there is no longer a lag with remote desktop. One point of concern is while I was rearranging my external monitors I noticed the display connection was cutting in and out. If I handle and move around the adapter the display connection will cut in and out which makes me think the connection is not great, once the adapter is stationary and not moving around it works with no issues.

This product works and does what it says, but definitely comes with some caveats. It's quite finicky, and an absolute nightmare to setup and get working properly. If you're using this to run non-Displayport monitors, you're in for a long day of setup and configuration. It's not simply plug and play, more like plug and pray. I'm using it on an nVidia Quadro K2200 to support a total of 4 monitors. If the two devices you're plugging into it are native Displayport monitors, it most likely will work without too many issues. If they're anything else such as HDMI or DVI, chances are only one of them will work if both are the same type of connection. My current working setup is two identical RCA HDMI TVs and two Acer V246HL monitors. I have one Acer monitor connected directly to the Quadro card's DVI port, one RCA TV direct to the card's Displayport with an HDMI to Displayport cable, and this Accel MST hub plugged into the video card's other Displayport. Into the MST hub, I have one RCA TV plugged in via HDMI to Displayport cable, and one Accell active Displayport to DVI adapter feeding the other Acer monitor. This is the ONLY configuration of these four devices that would work. I am a seasoned IT professional, and tried every assortment of connecting these four devices, with every passive and active adapter imaginable, this is the only way I could get 1920x1080 on 4 separate monitors. Also, this hub will do strange things with EDID information. The nVidia control panel kind of sort of knows there are four monitors but not fully in the same way as if you had four plugged straight into a video card. If EDID matters to you in your setup, this may not be the device for you. I had to export the EDID information of the RCA TV's plugged straight into the card actually to a text file, and tell the nVidia control panel to read it from there, because somehow the use of this MST hub caused the card to not recognize that other RCA TV on reboot, requiring a physical unplugging and replugging of that display on every reboot. The order of which I plugged things into the video card and into the MST hub made a big difference in getting everything recognized properly. Also, two HDMI TVs on this MST hub flat out would not work, and two DVI monitors (with either active or passive adapters or one of each) on this MST hub flat out would not work. Also, it should be noted that it would appear that this MST hub superimposes a null audio signal onto the HDMI feed out when HDMI audio is disabled (!!!) in Windows playback devices, which is a big problem for me, because it causes the TV to think its getting audio when clearly it's not, and will not mix in the 3.5mm analog feed. The trouble with all this newfangled Displayport stuff is that all of these caveats and technicalities are not well documented anywhere, and unfortunately the unsuspecting user like you has to turn to reviews like this for help, because you cannot just Read The (Friendly) Manual, because there isn't one. After lots of unplugging and replugging and rebooting and whatnot, I finally have a working stable configuration, but for most users, if you are using this to go from 3 monitors to 4, you are likely better off just buying a video card with four distinct ports on it.

Llegó hoy y lo instalé. No necesita cargador aparte sino se alimenta directo de la laptop. La configuración me resultó complicada pero supongo que por tener 2 pantallas de 34 pulgadas de UHD y QHD pero bueno, la foto indica que si funciona. Veremos en 1 y 2 meses como va

1920×1200 EIZO EV2455 ３画面で使用していますが、まったく問題なく使用できています。 同封されていた説明書は英語なので内容はよく理解できませんでしたが、ただ、ぶっ挿せば すんなり認識し、あとはOSの方で画面の並びやプライマリーディスプを選択すれば良いだけで 簡単でした。 画面が広がると、仕事が本当に捗ります！！

Surface Pro2 からドッキングステーションを経由して、このケーブルで分岐しFlexScan EV2730Q 2枚を接続しました。 最初はどちらか片方しか認識しなかったのですが、現在は両方とも、1920×1920 で認識しております。 手元のSurfaceの画面と合わせて3画面、個人的には理想の環境が整いました。 その後、 １．メイン画面と本製品に接続した1画面しか認識しない状況に再度なってしまったのですが、 本製品に付いているUSB給電をドッキングステーションから分離して独立して電圧を供給したら3画面状態になりました。 ドッキングステーションのUSBポートに戻すとやはり3画面にはなりませんでした。 （ファームウエアの更新等でドッキングステーションの電圧供給仕様が変わったのかな？） ２．次に、似たような現象が生じた時、ドッキングステーションからSurface Pro2を外して、Surface Pro2に直接本製品を接続すると使えるようになりました。使えるようになった後に、ドッキングステーションに戻せば、そのまま継続使用できました。

It appeared incompatible with my laptops so I gave it to my daughter who got it to work for a while on her laptop only for it to fail after a couple of weeks. Seems the product was defective all along.

I am not much of tech person, and was worried a bit, but it was as easy as plug & play. both monitors and lap top screen are working the only issue (which goes back to my tech knowledge) is that it needs a strange connector, I thought it is HDMI by looking at the picture, so I ended up baying two convectors, yes it is annoying.