ATEN 2 Port 4K DisplayPort KVM Switch 2 Monitors 2 Computers Dual Monitor KVM Switch, Share USB Peripherals, Independent KVM, USB, and Audio Switching CS1942DP

Provides instant access to two or four computers, all through a single USB keyboard, USB mouse, and two DisplayPort monitors.
Quad-Display Easily connect two CS1942DP units for a second dual-screen setup controlled through a single connection.
Multi-Stream Transport (MST) allows multiple monitors through a single DisplayPort connector.
DisplayPort Dual-Mode technology (DP++) supports HDMI and DVI signals via a DisplayPort-to-HDMI/DVI DP++ adapter, does not require active adapter.
Advanced video support provides a better-defined DisplayPort connection with video resolutions up to 4K (4096 x 2160 / 3840 x 2160 @ 60 Hz). Incorporating dual display capability, enjoy a wider screen and easily switch between two or four DisplayPort systems.