Amazon.com: HDMI Splitter 1 in 4 Out 4K 60Hz 4:4:4, AVIDGRAM HDMI 4 Port Splitter with Copy, Downscaler, and Auto Mode for Four Identical Display Support 1080p 120Hz HDCP 2.2 HDR10 18Gbps
HDMI splitter vs. HDMI switch: They actually serve opposite purposes - CNET
HDMI Video Splitter
HDMI SPLITTER 1 TO 2 (4Kx2K) – UltraPoE
Manhattan 4K 2-Port HDMI Splitter (207669)
Tripp Lite 2-Port HDMI Splitter - UHD 4K, International AC Adapter - video/audio splitter - 2 ports - B118-002-UHDINT - Audio Equipment - CDW.com
Avycon AVA-HDMI-SPT-1IN2OUT-HDR2 1 x 2 HDMI Splitter
Amazon.com: UGREEN HDMI Splitter 1 in 2 Out 4K@60Hz HDMI Splitter for Dual Monitors with 1.7FT HDMI Cable Support HDCP 2.2 3D HDR EDID HDMI Adapter Only Mirror Screen Compatible with TV
Amazon.com: HDMI Splitter with HD HDMI Cable, 1 in 2 Out 4K HDMI Splitter for Full HD 4K@30HZ 1080P 3D Splitter (1 HDMI Source to 2 HDMI Displays) : Electronics
XTREME 4 Port HDMI Splitter, Great for TV, Monitors, and Projectors XHV1-1017-BLK - The Home Depot
2-port C2G 2-Port HDMI Splitter 4K 30hz - Video/audio splitter - 2 x HDMI - desktop | Dell USA