Opened but never used. I realized I bought the wrong item after opening it, so I'm offering it to someone who needs it. The following is a partial quote from the official website. Please check the official website for compatible models, etc. ◆◆Please read before purchasing◆◆ 1. This conversion cable is a USB-C to DisplayPort conversion cable. It is not HDMI. Please be careful before purchasing. 2. Also, this USB C DisplayPort conversion cable only supports one-way transmission, i.e., USB-C to DP. 3. This USB-C port is compatible with Thunderbolt 4/3 and only applies to devices equipped with a USB Type-C terminal that supports video transfer functions. [USB Type-C to DisplayPort conversion cable] This USB-C DisplayPort conversion cable converts the video signal of devices equipped with a USB Type-C terminal that supports video transfer functions and outputs it to displays, TVs, projectors, etc. equipped with a DisplayPort input terminal. [8K@60Hz high resolution] This product supports ultra-high resolution of up to 8K@60Hz and also supports high refresh rates of 4K@240Hz/4K@144Hz, enabling smoother rendering compared to 4K@60Hz compatible cables, preventing delays and afterimages in fast-moving scenes. It also supports a super high refresh rate of 2K@240Hz, allowing you to enjoy games with confidence even in titles where a split-second difference determines victory or defeat, such as e-sports games. Note: To make the most of your device's resolution, please use a device that supports the appropriate resolution. [Multi-function support] Supports multi-display and clamshell mode, and with MacBook clamshell mode, you can work efficiently without the hassle of switching desktops. Using DisplayPort Multi-Stream Transport, you can connect multiple monitors to one video output port on your PC, keeping your desk tidy and simplifying cable management.