Plugable Active Mini DisplayPort (Thunderbolt 2) to HDMI 2.0 Adapter (Supports Mac, Windows, Linux and Displays up to 4k UHD 3840x2160@60Hz) - Newegg.com
Delock Products 85965 Delock HDMI to DisplayPort cable 4K 30 Hz 3 m
Tripp Lite Type-c Adapter, Dual Display - 4k 60 Hz Hdmi, Hdr, 4:4:4, Hdcp 2.2, Dp 1.4 Alt Mode, Black - Adapter - Type-c Male To Hdmi Female - 4.7 In - Black - 4k Support - Walmart.com
HDMI to DisplayPort Adapter, Male to Female, 4K, 6-in. | Eaton