It can be only used by connecting with PC, laptop DP port and the other HDMI end with the monitor. This cable only works one-way and it does not work other-way round From Monitor DP port To PC.
eBay
4K DP DisplayPort to HDMI-compatible Adapter Converter Display Port DP to HDMI-compatible HDTV Adapter Video Audio PC Laptop
Aliexpress UK
The DisplayPort to HDMI 4K Adapter is designed for connecting DisplayPort1.1 and 1.2 equipped computer systems to HDMI equipped monitors, providing optimal video quality up to 4K(3840 2160) Ultra HD resolution and supporting 3D.
eBay
DisplayPort to HDMI Cable 8K@60Hz 4K@122Hz 2K@144Hz DP1.4 Source to HDMI 2.1 Display Uni-Directional DP Cord for PC AMD NVIDIA
Aliexpress UK
Good condition works great. 4K@30Hz 1440p@60Hz 1080p@120Hz
eBay
Mini Displayport to HDMI 4K 60Hz adapter Active Thunderbolt Mini DP to HDMI 2.0 cable adapter for Microsoft Surface Pro 6/4/3
Aliexpress UK
The Mini DisplayPort to HDMI Adapter lets you connect a high definition monitor, projector, or LCD that uses a HDMI connector or cable to a MacBook, MacBook Pro, or MacBook Air with a Mini Display Port.
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Mini DisplayPort to HDMI 4K VGA DVI adapter cable 3-in-1 1080P Thunderbolt Mini DP to VGA HDMI DVI converter for Macs Laptop PC
Aliexpress UK
DisplayPort is a 20 pin connector similar to HDMI but designed to replace DVI/VGA. The standard was put forward by VESA to define a new royalty free audio/video connection.Our DisplayPort to HDMI cables are the perfect solution for adapting your DisplayPort computer or graphics card to use a HDMI monitor/device/TV.
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PzzPss 4K DisplayPort to HDMI-compatible Adapter Cable 1080P DP to HDMI-compatible Video Audio Converter For PC TV Laptop
Aliexpress UK
Quality:1xThunderbolt / Mini DisplayPort to HDMI adapter. Connect your Macbook / Macbook Pro / Macbook air to a device that has an HDMI port on it. Style:Mini DP to HDMI. HDMI Cable. Mini Display Port Cable.
eBay
8K DisplayPort to HDMI Compatible Cable 8K@60Hz 4k@120hz DP to HDMI Adapter Display Port Video Audio for PC HDTV Projector Ps5
Aliexpress UK
Input Ports: Display Port DP V1.2 Maz support Resolution Ultra HDMI 3840 2160 4K. Output Ports: HDMI V1.4 Support Max Resolution Ultra HDMI 3840 2160 4K. This cable allows you to connect from your HDMI output device to your DisplayPort Displays.
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4K 1080P DisplayPort to HDMI-Compatible Adapter DP Male to Female HD TV HDMI-Compatible Video Audio Cable for PC TV Laptop
Aliexpress UK
Connector 1: DisplayPort Male (Gold plated). Active adapter converts Single- and Dual-Mode DP++ output for viewing on display. Note: only for DP to HDMI, Does Not Support Vice Versa. 1 x Display Port to HDMI Adapter Cable.
eBay
4K DisplayPort to HDMI-compatible Adapter Male DP to Female HDMI-Compatible Cable Converter Video Audio For HDTV PC Projector
Aliexpress UK