wireless router switch 8 port

If I have a cable wireless router port 4 and add, for example, an 8-port switch, the number of ports I can use Wired?

10, a port on the router and a port on the switch connect them together. So there will be 10 left.

D-Link DES-1008D 8-Port Switch Unboxing

router

D-Link’s DES-1108 8-Port Desktop Switch