Yes, that is possible.

Whether it will work with a real RAM kit with 2 bars and RGB, on the other hand, is perhaps possible; you would have to do a bit of googling. In addition, it would depend on the timings of the already existing RAM bars CL, etc.: e.g. Tested Latency 15-17-17-35 see
https://www.corsair.com/us...

zwei Bedingungen müssen erfüllt sein:
RAM DDR4
a separately purchased Vengeance RGB PRO Memory Kit, d. h.: die bereits vorhandenen RAM-Riegel mussen RGB haben.

siehe
“WIDE-RANGING COMPATIBILITY
Works with most Intel and AMD DDR4 motherboards.
This Light Enhancement kit does not contain any DDR4 memory. A separately purchased Vengeance RGB PRO Memory Kit is required for your system to function.”
https://www.corsair.com/us...

Processor Icore 7700k

It would be good to know what is meant by "... others not di[e]se here".
The more precisely the 2 existing RAM bars are described, the more precise the answer will be. In addition, it would also be good to know :
- Processor
- Mainboard.