UHD 4K HDMI Splitter 1 in 2 out 1x2 / 2 Port HDMI Audio Video Out Two Ouputs Distribution Repeater Amplifier Split Box Support HDCP Ver 1.4 3D Ultra HD 4Kx2K Full HD 1080P - Walmart.com
A-Neuvideo 2 x 8 4K UHD HDMI Splitter/Scaler ANI-28UHDDA B&H
Product - avedio links
C2G DisplayPort to x2 HDMI 4K Monitor Splitter | Dell USA