Amazon.com: 1x4 HDMI Splitter, 1 in 4 Out HDMI Splitter Audio Video Distributor Box Support 3D & 4K x 2K Compatible for HDTV, STB, DVD, PS3, Projector Etc : Electronics
VisionTek Radeon HD 5570 4-Port HDMI/VHDCI Graphics Card 900901
4 Ports HDMI Splitter, EDID, HDCP, VSM-104
Amazon.com: Plugable 4 HDMI Multi Monitor Adapter, USB 3.0 or USB C to HDMI Adapter, Compatible with Windows and Mac, Quad Adapter Supports 1920x1080@60Hz : Electronics
Amazon.com: KELIIYO HDMI Splitter 1 in 4 Out V1.4b Powered HDMI Video Splitter with AC Adaptor Duplicate/Mirror Screen Monitor Supports Ultra HD 1080P 2K x4K@30Hz and 3D Resolutions (1 Input to 4
j5create | USB-C to 4-Port HDMI Multi-Monitor Adapter
4 Port RCA to HDMI Converter, Dual AV to HDMI Converter Supports 16:9/4:3 Composite to HDMI Adapter Support 1080P PAL/NTSC Compatible with Sega/Xbox/PS1/PS2/PS3/WII/N64/VHS, VCRs, and DVD Players - Newegg.com