StarTech.com 4 Port DisplayPort KVM Switch with 4K 60Hz TAA complaint DisplayPort 1.2 KVM DP KVM switch controls 4 computers from one set of peripherals Supports resolutions up to 4K at 60Hz -
StarTech.com 4 Port DisplayPort KVM Switch DP KVM Switch with Built in USB 3.0 Hub for Peripherals 4K 30 Hz - Office Depot
DPN-4Quad-S - SmartAVI DPN-4Quad - 4 Port Quad Monitor DisplayPort KVM w/ 2x USB Peripheral Hub, RS-232 & Audio
Smart-AVI 4-Port Duo DisplayPort-HDMI KVM Switch D2H-4P-DUO-S
4 Port DisplayPort KVM Switch Audio Cables USB 3.0 SuperSpeed Hub (B004-DPUA4-K) | Tripp Lite
TRENDnet TK-440DP 4 Port Dual Monitor Display Port KVM Switch
Dual-Monitor USB/DP/Audio 4-Port KVM Switch UDP2-14AP-KIT - ConnectPRO ConnectPRO The Best DisplayPort KVM switch UDP-14AP-KIT - 4-port USB DisplayPort KVM switch DisplayPort 1.4 KVM for 4 systems with USB DDM and EDID