NTI UNIMUX-DP4K-2DH 2-Port Dual Monitor 4K DisplayPort USB KVM Switch
Amazon.com: KVM Switch DisplayPort - 2 Port DP KVM Switch, Two Computers One Monitor Switch to Share Mouse,Keyboard,Printer, USB 2.0 Device and Ultra HD Monitor, Support 4K@60Hz, 2 DP and 2 USB
1.4 Display Port KVM Switch - Dual Monitor - Two Computer — Level 1 Techs
Rextron PAAG-ET3112B DisplayPort KVM matrix Support Upto 4K 120Hz, 4K 144Hz, 5K 120Hz, and 8K 60Hz Resolutions