The DisplayPort cable (DisplayPort to DisplayPort) transmits high-resolution video signals and HD audio signals e.g. from a computer or laptop to a monitor or beamer.supports high quality resolutions up to 8K (60Hz) and delivers crisp imagessmooth images (no judder) by supporting high refresh rates up to 240 Hz especially for gaming (depending on graphics card and monitor)Backward compatible to 4K Ultra HD 2160p (120 Hz), 4K Ultra HD 2160p 860 Hz), gold-plated contacts and double shielding guarantee improved signal transmissionThe connector lock ensures a secure hold and optimal signal transmission. It can also be easily unlocked via the push button.to avoid short-circuit damage, pin 20 is not connected (no power supply)