These are the specs for your MB.
You have two M2 sockets.
One will take PCIe and SATA.
The other only takes PCIe.
So....you can either get a SATA SSD or a PCIe SSD. A PCIe SSD is faster and more expensive....and I think that the extra speed is probably not worth the money for most people.
ntel® B360 Chipset :
1 x M.2 Socket 3, , with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)
1 x M.2 Socket 3, , with M key, type 2242/2260/2280 storage devices support (PCIE 3.0 x 4 mode)
6 x SATA 6Gb/s port(s), gray