NTI UNIMUX-DP4K-2DH 2-Port Dual Monitor 4K DisplayPort USB KVM Switch
Amazon.com: Synvisus DisplayPort KVM Switch 4 Port 3D UHD 4K@60Hz, 2K@120Hz 4 in 1 Out USB and DP1.2 KVM Switcher, with 4 USB Cables : Electronics
4 Ports QHD DisplayPort KVM Switch with USB 2.0, Two-way Audio, PAAG-114
Amazon.com: Cable Matters USB 3.0 KVM Switch DisplayPort 1.4 for 2 Computers with 8K@60Hz / 4K@120Hz Display Port Video & 3X 5Gbps USB Ports, FreeSync, G-SYNC and HDR Support - RF Remote