As I understand what you are trying to do, then yes. Every new receptacle I have ever seen had at least two screw terminals for the black and white wires. ... perhaps one only for ground. You can simply cut your Romex wires, trim the ends, and fasten all of them to the new receptacle outlet. Be sure to pass the ground wire circuit through too, even if you have to screw both bare leads down under one screw terminal. Most new outlets also have push in connection holes in the back...you can use them instead of the screw terminals. JUST BE SURE YOUR BREAKER IS OFF FIRST !