Using an iMac as a monitor Amazon Basics 4K Mini DisplayPort to DisplayPort Cable 6 Feet Black

Using an iMac as a monitor / Display Amazon Basics 4K Mini DisplayPort to DisplayPort Cable 6 Feet Black (01-25-2022) Cost: $ Using my 27 inch late 2009 iMac as a Display for my PC. But also using the iMac as a computer, as well as a display. Video Card is an RTX 2080 Ti imac running Sierra, Monitor displays 2K (2560x1440) @ 60Hz Amazon: =ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1 Use your iMac as a display with target display mode Apple website info: #:~:text=an external display:-,The iMac used as a display must have macOS High,be a Mini DisplayPort cable.