Not sure what you're asking - about an adapter? Both have DVI so no need for any gizmos to connect them. The CG220 model works excellently on my earlier Mac Pro with just bog standard 7300 nVideas so I can't see why the newer/bigger versions of both won't work even better.
The colour and image quality is absolutely superb, although one thing is that the CG220 has a strong green hue for the first 30 seconds or so after powering up from cold until it warms up, but this is to be expected as per the literature. I assume the CG241 will be similar if they are using the same technology.