Question about Ubiquiti UF-RJ45-1G: SFP to RJ-45 module

Exactly, with this module you have a regular copper RJ45 port and can connect devices via Ethernet cable.

Does this mean that if I equip the Ubiquiti switch US-8-150W, which has 2 SFP ports, with two such RJ45 modules, I can connect the switch with 10 ports (i.e. 10 clients)? Resp. I want to connect a Cicso unmanaged switch to the US-8-150 via RJ45, ports 1-8 are already occupied, so can I connect it to SFP1 with RJ45 module? Or must there also be a Ubiquiti US-8-150 on the opposite side on SFP1 with RJ-45 module?

Thank you for the answer