Devices that allow a single video input to be connected to multiple outputs.
StarTech.com 2 Port DVI Video Splitter with Audio - TAA

StarTech.com 2 Port DVI Video Splitter with Audio - TAA

StarTech.com
£111.99
StarTech.com 4-Port Multi Monitor Adapter - DisplayPort 1.2 MST Hub - 4x 1080p - DisplayPort Video Splitter for Extended Desktop Mode on Windows PCs Only - DP to Quad DP Monitors

StarTech.com 4-Port Multi Monitor Adapter - DisplayPort 1.2 MST Hub - 4x 1080p - DisplayPort Video Splitter for Extended Desktop Mode on Windows PCs Only - DP to Quad DP Monitors

StarTech.com
£78.99
StarTech.com 2 Port VGA Video Splitter - USB Powered

StarTech.com 2 Port VGA Video Splitter - USB Powered

StarTech.com
£16.99
StarTech.com 3-Port Multi Monitor Adapter - DisplayPort 1.2 to 3x HDMI MST Hub - Triple 1080p HDMI Monitors - Video Splitter for Extended Desktop Mode on Windows PCs Only - DP to 3x HDMI

StarTech.com 3-Port Multi Monitor Adapter - DisplayPort 1.2 to 3x HDMI MST Hub - Triple 1080p HDMI Monitors - Video Splitter for Extended Desktop Mode on Windows PCs Only - DP to 3x HDMI

StarTech.com
£80.99
StarTech.com 8-Port 4K 60Hz HDMI Splitter

StarTech.com 8-Port 4K 60Hz HDMI Splitter

StarTech.com
£156.99
StarTech.com 2-port HDMI splitter and signal amplifier - TAA

StarTech.com 2-port HDMI splitter and signal amplifier - TAA

StarTech.com
£82.99
StarTech.com 2-Port Multi Monitor Adapter - DisplayPort 1.2 MST Hub - Dual 4K 30Hz or 1080p - USB Bus Powered - Video Splitter for Extended Desktop Mode on Windows PCs Only - DP to 2x DP

StarTech.com 2-Port Multi Monitor Adapter - DisplayPort 1.2 MST Hub - Dual 4K 30Hz or 1080p - USB Bus Powered - Video Splitter for Extended Desktop Mode on Windows PCs Only - DP to 2x DP

StarTech.com
£52.99
StarTech.com 8

StarTech.com 8" (20 cm) DMS-59 to Dual DisplayPort Adapter Cable - 4K x 2K Video - LFH DMS 59 pin (M) to 2x DisplayPort 1.2 (F) Splitter Y Cable - LFH Graphics Card to Dual DP Monitors

StarTech.com
£21.99