First half goals from Ashley Nadesan and Ludwig Francillette was enough for John Yems' men to make it two wins in a row following last week's 1-0 win over Barrow.
But who stood out for the Reds in the win? Here are the fans player ratings after the trip to Wales.
See also Crawley Town's fine form continues at Newport / Crawley Town take over: WAGMI United revealed as new owners after weeks of speculation / See Crawley Town's new owners' tweets as Reds make it two wins in two under WAGMI United
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Crawley Town player ratings
. Glenn Morris 8
Not a lot to do in the first half, made two great saves from long range to deny Newport and equaliser in the second half.
. George Francomb 8
Playing out of position in the back three but another solid game never fails to deliver.
. Ludwig Francillette 8
commanding in the centre of the back three, capped his game with his first senior goal.
. Joel Lynch 7
Getting back to match fitness after injury - won most headers and tackles, lasted 70 minutes before being substituted.
. Will Ferry 9
What a performance - Man of the Match from the away support - always a constant menace, never stopped running and showed what a player Southampton have.
1. Glenn Morris 8
Not a lot to do in the first half, made two great saves from long range to deny Newport and equaliser in the second half.
2. George Francomb 8
Playing out of position in the back three but another solid game never fails to deliver.
3. Ludwig Francillette 8
commanding in the centre of the back three, capped his game with his first senior goal.
4. Joel Lynch 7
Getting back to match fitness after injury - won most headers and tackles, lasted 70 minutes before being substituted.