ViewSonic

43 4K 3840x2160 OSfree commercial display, 500 nits, 1,200:1 contrast, HDMI 3, USBC 1, VGA 1, RS232 1, RJ45 1, USB2.0 2, SPDIF 1, PC audio in, audio out, 10W 2 speakers, black

43 4K Commercial Display, 500nits, 5000:1, 8GB RAM/32GB storage, HDMI x4 in/out, USBA x2, USBC, Audio in/out, SPDIF, WiFi slot, RS232, 16W x2 speakers, RJ45 x2, black

55 4K Commercial Display, 500nits, 5000:1, 8GB RAM/32GB storage, HDMI x4 in/out, USBA x2, USBC, Audio in/out, SPDIF, WiFi slot, RS232, 16W x2 speakers, RJ45 x2, black

ViewSonic 21.5" Privacy Filter Screen Protector for Widescreen (16:9) LCD Monitor Lightweight Anti-glare and Anti-scratch, Black

24 4K Podium Touch Display with Active Stylus and Advanced Ergonomics.

27 1080p Ergonomic 100Hz Monitor with HDMI, DisplayPort, and USB Hub.