Expensive, but works perfectly with both Mac and PC with 2560x1440

What's the matter? An iMac in 2011 (OSX 10.10) and an HP Elite Book (Windows 7) with an additional VGA monitor to be each additional "connected to a Dell 27 with 2560 x 1440 resolution via DisplayPort. This works, but I had to replace each cable on the Dell.

The Startech I can now operate the iMac and the EliteBook via DisplayPort switch on and connect there to Dell. The 1440s resolution is supported at both computers. If both computers run, I can connect the monitor to the one or other computer by pressing a button on Startech. The then decoupled computer recognizes the "lost" screen and adjusts itself according to (Windows tray from HP is placed on the VGA screen, etc.). This switching takes a brief second, and can be repeatedly performed without problems.

The selected channel 1 or 2 is indicated via a red lamp. Red, because you can also connect the keyboard and mouse, but what I have not done. Therefore, I also do not mind that the unit only supports USB 2, USB 3 version was not available.

After all, should the Dock screen get better than the permanent plugging and unplugging of the DisplayPort connector beforehand.

Warning: despite the relatively high price are in addition to the power supply at no additional cables. DisplayPort cable, USB host, etc. must be ordered separately if required.