SM-DPN-4D-S - 4-Port Dual Monitor 4K DisplayPort KVM Switch with USB 2.0 & Audio.

StarTech.com DisplayPort KVM - 4 Port - 4K 60Hz - Dual Monitor KVM - DisplayPort Switch - KVM DisplayPort - Desktop KVM Switch (SV431DPDDUA2),Black : Electronics

KVM Switch 2 Monitors 4 Computers Displayport + HDMI, 4K@60Hz Dual Monitor KVM Switch 4 Port with Audio Microphone Output and 3 USB Ports, HDMI+DP Monitor Switch for 4 PCs 2 Monitors : Electronics

4 Port Dual Monitor KVM Switch Kit DP 4K60Hz with EDID PKS0802A10 – TESmart

TRENDnet 4-Port Dual Monitor DisplayPort KVM Switch With Audio, 2-Port USB 2.0 Hub, 4K UHD Resolution Up To 3840 x 2160, Connect 4 DisplayPort Monitors, Dual Monitor 4 Port KVM Switch

Smart-AVI DPN-4DUO-S - 4-Port Dual-Head Displayport KVM Switch

4 Port Dual Monitor KVM Switch Kit DP 4K60Hz with EDID PKS0802A10 – TESmart

SM-DPN-4D-S - 4-Port Dual Monitor 4K DisplayPort KVM Switch with USB 2.0 & Audio.

SM-DPN-4Q-S - SmartAVI SM-DPN-4Q - 4 Port Quad Monitor DisplayPort KVM w/ 2x USB Peripheral Hub, RS-232 & Audio

HDMI KVM Switch 4 Port Dual Monitor Extended Display, CKL USB KVM Switch HDMI 4 in 2 Out with Audio Microphone Output and USB 2.0 Hub, PC Monitor Keyboard Mouse Switcher 4K@30Hz CKL-942HUA : Electronics

HDMI KVM Switch 4 Port Dual Monitor Extended Display, CKL USB KVM Switch HDMI 4 in 2 Out with Audio Microphone Output and USB 2.0 Hub, PC Monitor Keyboard Mouse Switcher