StarTech.com 3-Port DisplayPort 1.2 Splitter, DisplayPort to 3x DP Multi-Monitor Adapter, Dual 4K 30Hz and 1080p 60Hz Computer MST Hub, Windows Only (MSTDP123DP)

StarTech's DisplayPort hub solution is the multiple monitor hub that we have standardized to use for all of our corporate desktop, notebook and tablet use. Initially we introduced the StarTech Mini DisplayPort to 3x DisplayPort hub for all of our Microsoft Surface Pro3 users with a Surface dock running either 2 or 3 displays. We've continued to use the StarTech solution for DisplayPort to multi-display for our currently deploying Dell Optiplex 9020Micro and Dell 9020 Small Form Factor desktop pc's and Dell/HP notebooks, ultrabooks and convertibles. Manufacturers have finally begun standardizing all new computers with MiniDisplayPort/Thunderbolt or Displayport displays, supplanting the vise grip of legacy VGA, DVI and retail HDMI connectivity. This is great because it allows the use of the newer displays that support DP connections, but it also provides us with a useful method of connecting the existing legacy monitor with new PC's with adapters. StarTech's DisplayPort Hub is aligned with its adapter modules, to provide a single manufacturer supported hub to many output displays (DP, MiniDP, VGA, DVI, HDMI) using the correct StarTech conversion adapter. From a corporate support aspect, this simplifies the # of inventoried hubs and adapters that are out in the wild for our users and provides a solid supported single manufacturer display connectivity solution that just works. This solution does not require a high end graphics card to achieve business multi-monitor support. Most of our business PC's are running Intel HD5000 graphics adapters and run 3x 24" 16:10 monitors fine (Dell U2415) or lesser resolution. Thankfully the solution is cost effective and can be used with Startech ST121SHD50 HDMI CAT6 transmitter/receivers to increase the distance of the PC from large HDMI presentation screens considerably. All of the Startech displayport video connectivity solutions mentioned in this review are in active use as a standard for my corporate customers and I use them at home as well. There was no product provided by the vendor for this glowing review - they just work that well.

I bought this to be used with my Windows 7 setup - 3 monitors ran out of one DP port. While it does the job, and indeed powers all three monitors, Windows freaks out when any of the monitors is turned off or goes into power save mode. It acts as if the display was physically disconnected/no longer exists, and shifts all your desktop items and windows into another monitor. That is a problem for Windows when *all 3* monitors disappear at once - it basically freezes and you have to reboot. I gave up on Windows+DP and just went the DVI route. However! This device works great out of the box with Linux. I'm using it at work, Running Arch Linux x64, kernel 4.0.7-2-ARCH. xrandr sees all monitors connected to it, and although there is a slight (0.75-1.25s) delay when setting up the monitors with xrandr, it works just fine and I am able to have 3 spanned 27" monitors running at 1080p through this device. Overall, this product does what it is supposed to - the only issues I had with it were operating system issues that are not the fault of this product.

First off, I am an IT professional...I have done this for a living for a long time....I had high hopes for this unit. Seemed simple enough...I currently use two monitors for work. I connect one to the Displayport connector on my Docking station and the other to the HDMI connector on my Laptop. This works but wanted to be able to use a third monitor and just use one connection....I thought this would be the ticket. I connected the hub to the display port adapter on my Docking Station, turned on my Laptop and saw video on my two monitors until the OS loaded at which time the display disappeared. I thought perhaps there was a driver needed for it to work...it was obvious to me the OS could not recognize the device. I went to the startech technical support web site and there is no driver for the unit. I contacted Technical Support (a couple of times) and they said no driver was needed....it should work fine but I needed to make sure I had the latest display driver for my Laptop loaded. I updated the graphics driver to the very latest and it still did not work. I attempted numerous configurations....tried the both displayport adapter on my docking station AND the mini displayport adapter on my laptop...neither worked. I also attempted using my laptop docked and undocked. I also tried leaving the one monitor connected via the HDMI connection and connecting the hub to both the docking station and then the mini connector on my laptop....My thought was that if I connected the displayport after I already had a display via the HDMI perhaps it would see the displayport connection. This did not work either. I could connect the monitor using the displayport adapter directly to the docking station and it worked but if I attempted to through the hub it did not.....SO, I am returning this unit. Perhaps I got a defective unit but spent a few hours trying to troubleshoot the issues and I am not willing to dedicate further time to troubleshoot this at this point....either it works or it doesn't and this didn't work for me. I was very disappointed.

I have been using this adapter for a year and a half now. I have a solid state drive with two Acer and one MSI monitors. All equipment is at least 6 years old. This is my workstation, and is turned on everyday. The two Acer monitors are connected to the adapter. The MSI is directly connected to the solid state drive. The adapter works well on a daily basis. Often one or both monitors in the adapter will not activate. If this happens, I disconnect and reconnect the adapter (not the monitors), and they light up again. Over the 18 months or so, I have had to reset the adapter 3 times. If you adapter just seems to stop working, I recommend a reset. It's always worked for me. To reset the adapter: 1) Make sure your computer is on and the adapter is plugged in, as normal 2) Unplug the adapter 3) Unplug all attached devices to the adapter, including the power cord 4) Plug the adapter into your computer 5) Plug the power cord into your adapter 6) Plug in the monitors to the adapter At this point, the monitors might activate. Don't let this stop you from the final step. 7) There is a little SCAN button on the front of the adapter beside the power cable plugin. Click the SCAN button. All monitors will flash and might go dark for a moment, but they reactivate soon enough. Hope this helps. It's been a great little adapter for me. If it did not require me to unplug/replug it so often, I would give it 5 stars.

I was very apprehensive about buying this after reading some of the other reviews. I just bought 4 Dell monitors with Display Ports and a new Dell I7 PC. I set it all up about 3 weeks ago, and so far, everything works perfectly. It may be that some of the other reviewers are, let's just say, "technically challenged". I'm pretty technical, but it was child's play (er. mostly plug-and-play) to get the monitors plugged in and images showing up on my screens. A little bit of configuration within Windows and the Dell display adapter settings, but you'll need to do that with ANY new system. I didn't evaluate tech support - did not need it. NOTE: I chose this because although I wanted to try daisy-chaining the monitors off my PC. The video card will do it; but my monitors will not. You need daisy-chainable Display Port monitors with both in and out Display Ports - and those monitors are much more expensive. So, this adapter is the alternative route - it merely splits the video signals 4 ways. Same results as the daisy chain method, and I'm quite happy with how this works.

UPDATE: I finally found a solution to the issues I was having. This MST hub has a limited amount of bandwidth for all connected monitors. Their website says that 1920x1080@60Hz = 22% of the bandwidth. I think 22% is actually 1920x1080@60Hz at 24bit color. Windows 8 and above only support 32bit color depths. The increased color depth results in a 33% increase in bandwidth to the MST hub, which means with 3x 1080p@60hz monitors connected it uses approximately 90% of the bandwidth. This should work but doesn't. The solution I found was to use the NVidia Control Panel to set the output color to 6 bits per channel (aka 24bit color). The 'Desktop color depth' can't be changed from 32bit, but 'Output color depth' can set to 6bpc. At 6bpc the bandwidth to the hub is reduced to a level that it can actually handle. I attached a picture for reference. I'm not sure if this is exclusive to NVidia cards, so I suggest you check your video card settings prior to purchasing this item. I'm raising the rating of this item back to 3 stars because it does actually drive 3 monitors at 1080p@60Hz. -2 stars for the poor documentation and frustration. --------------------- UPDATE: I initially gave this product 3 stars, but after a month of using the device on a daily basis I'm downgrading it to 1 start. Over the past month I've run into the following issues. When I turn off my monitors at lunch or the end of the day, randomly I lose one monitor. Generally unplugging the MST Hub fixes it, but sometimes I have to power down everything for it to come back up. This is not a graphics card issue or monitor issue. I've tested with a cable connected directly to the laptop and have no issues. Today the same thing happened, but this time I couldn't get one of the monitors to come on. I pressed the scan button, power cycled, but nothing. I had to move the monitor to the unused port on the MST Hub. So in addition to all the other trouble, now I have a 3 port MST Hub with a dead port (yes I tried connecting other devices to the dead port and none of them get signal). This product is garbage. I highly suggest you look for another product, or plan to pull your hair out. --------------------- I bought this for a 3 monitor configuration. My docking station has 2 DP ports, but with MST hubs can support up to 6 monitors. The video card in the laptop is an nVidia Quadro K1100m. I bought the 3 port hub in hopes of cleaning up some of the cable clutter on my desk. So the plan was to place the hub behind the 3 monitors and run a DP extension between the hub and the docking station. This didn't work out. The hub only supports 3x 1080p monitors at 24hz. This configuration had way too much flicker. I was able to run 2 monitors a 1080p@60hz and 1 at 800x600@60hz, but this is less than idea. It seems that the hub doesn't have enough bandwidth to support 3x 1080p@60hz. In the end I ran 2 monitors (1080p@60hz) off of the hub, and ran the third by connecting it directly to my docking stations 2nd DP port. I also tested this using the integrated Intel graphics card but got the same results. I also verified that the laptop/docking station is DisplayPort v1.2 compliant. The laptop is a HP ZBook 17 Gen1. I'm giving it 3 start because the manufactures website clearly says that 1920x1080 @60hz = 22% bandwidth, so 3 should only consume 66% meaning it should support this configuration. But unfortunately this is not the case. Other than this specific issue I find this to be a good product. If I were to purchase again I would probably try the 2 port version and save a few dollars. Manufacture's product page: [...]

Loved the idea behind this and what it brought to the table after I had already bought two monitors with displayport/VGA inputs only and a new desktop computer with one displayport output. I was able to connect both my monitors. This is a "dumb" device and my desktop didn't deal with it well sometimes switching one of my monitors resolution to 640x480. After my desktop went to sleep during the night I found I needed to unplug this and plug it back it so I'd have monitors. StarTech's technical staff was amazing at helping me and I wound up buying another adapter for HDMI to displayport and everything is working as I expect. Ask that being said I liked the product and the idea behind it. My Dell desktop just didn't play well. I have this device in its box, need one?

Pros: True PnP action: no restart required Dead simple to install. Reliable Cons: Pricey I purchased this adapter to be able to run three monitors on a work machine. It has been 100% reliable and was dead simple to install. It mentioned restarting in the instructions, but I found it to be fine without. The only drawback is the price. Star tech is a good name and you pay for it, but it functions as advertised and more reliable than any other third monitor solution I've currently tried.

Was plug and play after downloading the driver. I wish the cord was a bit longer so I could hide it with everything else behind my laptop. For Windows 10 you need to arrange your displays properly in order for them to extend. I had to research that but didn't take long.

It didn't work. Followed their instructions, called their support, eventually all they could tell me was /maybe/ different cables would work. I ended up finding another way around the problem for much less money.

Auf einem Produktbild wird angegeben, dass dieses Gerät nicht mit Linux funktionieren soll. Zumindest für Arch Linux kann ich das Gegenteil bestätigen, aber solange die Signalquelle generell MST unterstützt fällt mir auch kein Grund ein, weshalb dieser MST Hub nicht funktionieren sollte.

Trying to drive 2 Asus pg279q monitors Nothing but trouble and wouldn't go more than 30hz at 2k 1440p

deuxième modèle, le premier a été retourné (autre marque), celui-ci fonctionne parfaitement pour deux écrans DELL U2412M sur mini PC ACEMAGIC