Questions about Club 3D DisplayPort — DisplayPort

Graphics and latency have relatively little to do with the cable. For 240 Hz, it simply has to meet the DP 1.4 standard, which this one does. I can recommend it.

I'm sorry, I can't give an answer to that!

It depends on your laptop, your screen and your usage. Usually you have an HDMI output on a computer and an HDMI input on your monitor. You can check with the pictures on the internet to make sure that you have HDMI ports on your computer and on your monitor. Beware that some recent computers only have usb-c output, you will need either an adapter or a usb-c to HDMI cable.

No, check if it clicked in properly when you plugged it in. Otherwise it could be due to cable damage.

Yes, you can use this cable for all older versions of DP.

Yes this cable supports 144Hz 1440p and up.

No, this is not an HDMI cable, the clear feature is the one straight side. The difference is better explained here https://www.turn-on.de/tech/ratgeber/displayport-vs-hdmi-was-sind-die-unterschiede-und-ist-besser-441368 In addition, many devices only have one HDMI connection, which also makes them very uniform.