Uni-directional DisplayPort to HDMI: is designed for one-way conversion from DisplayPort source to HDMI display only. It does not support HDMI to DisplayPort conversion, so it is not suitable for HDMI source devices
uni-directional
High-Quality 4K HDMI Cable – DisplayPort to HDMI
Uni-Directional DP to HDMI Only: This cable transmits video signals from a DisplayPort SOURCE (like a PC/laptop) to an HDMI DISPLAY (monitor/TV), Cannot connect HDMI sources (gaming consoles, Blu-ray players, cable boxes) to DP displays, it will NOT work in reverse! Need HDMI DP? You’ll require a separate converter, Verify your source device before purchase!
BENFEI 4K DisplayPort to HDMI Adapter, Uni-Directional DP 1.2 Computer to HDMI 1.4 Screen Gold-Plated DP Display Port to HDMI Adapter (Male to Female) Compatible with Lenovo Dell HP and Other Passive
SUPERIOR STABILITY: Built-in advanced IC chip converts DisplayPort signal to HDMI signal; It is NOT a bi-directional converter and cannot transmit signals from HDMI Source to DisplayPort Monitor.