One of the most important considerations when purchasing a computer is the number of RAM slots it has. The Z590 comes with 8GB of RAM, which is more than enough for most users. In addition, the Z590 has two PCI Express 3.0 x16 slots, which allows for up to 64GB of additional RAM to be added.
This means that the Z590 can handle virtually any application or task that you may need it to. In conclusion, the Z590 comes with 8GB of RAM and two PCI Express 3.0 x16 slots, which gives it plenty of capacity to handle any application or task you may need it to.