Can the XDJ-1000MK2 be used via a LINK connection with other PRO DJ LINK compatible players (CDJ/XDJ)?

Yes. Songs stored on storage devices can be shared via LINK connection. However, when using storage devices inserted in other players connected to the XDJ-1000MK2 via a LINK connection, there is a limit to the functions that can be used on the XDJ-1000MK2.