HDMI Splitter 1 in 2 Out, 4K HDMI Splitter for Dual Monitors Duplicate/Mirror Only, 1x2 HDMI Splitter 1 to 2 Amplifier for Full HD 1080P 3D with HDMI Cable (1 Source onto 2 Displays) - Newegg.com
Amazon.com: Amazon Basics 1080P HDMI 1x2 Splitter for Dual Monitors (Only Supports Screen Duplication, not Extension) : Electronics
HDMI Splitter - 8-Port - 4Kx2K 3D 1080P - HDMI Splitter 1 In 8 Out - 8 Way HDMI Splitter - HDMI Port Splitter -For PS 3/4, Xbox, HDTVs, projectors, PC monitors,Blu-ray DVD player - Newegg.com
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