@Twinmum2
If that's an FTTP connection (ONT to Hub) then Cat5e is fine, and higher grades unnecessary.
Just avoid the ungraded stuff which doesn't carry a Cat rating: that's not actually copper wiring inside.
Note that for FTTC it's not an ethernet cable at all.
* * * * * * *
Sky Glass 55" (on ethernet) & two Stream Pucks (one ethernet / one WiFi)
BT Halo 3+ Ultrafast FTTP (500Mbs), BT Smart Hub 2
