Question about Lenovo ThinkVision M14d

To connect the monitor to an RTX 4000 with a DP 1.4 port, you will need a DP to USB-C adapter that supports DisplayPort Alt Mode. The ThinkVision M14d uses USB-C with DisplayPort 1.2 Alt Mode, which means that it should be compatible with such an adapter as long as the adapter provides the required Alt Mode support. Note, however, that the maximum resolution and refresh rate are limited by the DisplayPort version of the monitor.