Cardiff make six changes from the side that secured a bonus point on Tuesday for the trip to the Gnoll.
Three of those changes are in a new front row, Nathan Trevett, Aaron Fowler and Ryan Harford all starting, while the rest of the pack remains en-block after a fantastic performance against Swansea.
In the backline Jason Tovey starts at outside half with Max Woodward coming into the midfield. Jack Phillips replaces the injured Steve Cullen on the wing.
Cardiff (vs Neath)
15 Dan Fish
14 Jamie Davies
13 Max Woodward
12 Shaun Powell
11 Jack Phillips
10 Jason Tovey
9 Garyn Lucas
1 Nathan Trevett
2 Aaron Fowler
3 Ryan Harford
4 Nick White
5 Dan Partridge
6 Macauley Cook
7 Thomas Young
8 Rory Watts-Jones
16 Ethan Lewis
17 Callum Lewis
18 Lewis Smout
19 Matthew Screech
20 Ben Roach
21 Tomos Williams
22 James Thomas
23 Joe Griffin