Aten CS1944DP 4 port Dual View DisplayPort KVMP is capable of a 4K (4096 x 2160 /3840 x2160 @60Hz) resolution. Incorporating dual display capability, you are allowed to enjoy a wider screen and easily switch between two or four DisplayPort systems. In addition, featuring a built-in USB 3.1 Gen 1 hub, the CS1942DP delivers unprecedented data transfer rates up to 5 Gbps, allowing you to maximize multimedia operations. Computer Selection via front panel, hotkeys, mouse, and RS-232 commands, 2- Port USB 3.1 Gen 1 hub with SuperSpeed 5 Gbps data transfer rates. It supports MST (Multi-Stream Transport) and Console keyboard emulation / bypass feature
Data Sheet
Manual
CS1944 RS232 Commands 
Aten CS782DP 2-port USB & DisplayPort KVM switch with superior video quality of up to 4K UHD 3840 x 2160 @ 60Hz and fully DisplayPort 1,2 compliant. It features power on detection: if either of the computers is powered off, the CS782DP will automatically switch to the other computer. The CS782Dp is audio-enabled with full bass response that provides a rich experience for 2.1 channel surround sound systems. Multimedia keyboards and wireless keyboards are supported. Data Sheet Manual
NewLink 1 In 4 Out HDMI V2 splitter supports 4K@60Hz as well as HDCP 2.2.
