A:Answer The 4K DisplayPort Cable will work, however, I'm not sure if it would support 144Hz refresh rate with 3440 x 1440 resolution for your Dell monitor. The video cable supports 3840 x 2160 @ 60 Hz. It may be possible but unfortunately, I do not have a monitor with those type of specs to confirm. I recommend contacting j5create Technical Support Team regarding the 4K DisplayPort Cable capabilities. Their information can be found on our website under the "Support" tab and a specialist will be ready to assist you. Thank you.
