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StarTech.com 4 Port DisplayPort KVM Switch - DP KVM Switch with Audio and Built-in USB 3.0 Hub for Peripherals - 4K 30Hz
The 4-port DisplayPort KVM switch allows you to control four display port computers using a single console with a built-in USB 3.0 hub, for sharing additional peripheral devices. The switch supports ultra HD 4K resolution of multimedia applications such as graphic design or CAD CAM creations. The KVM switch has a built-in 3.5 mm audio port that enables you to share independent analog audio, from each of your connected computers, with your desktop speaker set. This 1U form factor rack mountable switch ensures flawless performance of your USB peripherals with a quick transfer of data up to 

Price is $434.00
Price: $433.9