Yes, there's absolutely no issue with this form of heterogeneous replication with RP granted an upgrade to 5.1 (preferably 5.1.2) will take place before X2 is added to RP.  Hope that helps, Idan
Hello, We have Gen 5 RPAs running RP 4.4 replication between VNXs. We are getting a new XtremIO X2 at our DR site. I would like to know if we can enable parallel replication to this new XtremIO using the same recoverpoint system provided we upgrade them to 5.1 and connect RPAs at DR site to XtremIO.  Current State: vnx1 prod->rpas prod->rpas DR->vnx2 dr Future state: vnx1 prod->rpas prod->rpas DR-> XtremIO X2 dr and vnx2 dr
RecoverPoint - Multi Site replication