Monoprice DisplayPort 1.2a to 4K@60Hz HDMI Active UHD Adapter, Black - Monoprice.com
Nvidia GTX 970 4 GB
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Amazon.com: UPTab HDMI to DisplayPort 4K 60Hz Active Adapter, for HDMI Equipped Systems to Connect to DisplayPort Monitors - Compatible with Xbox One/X/S and Playstation 4/5 and More : Electronics