1) Your motherboard doesn't offer any M.2 ports, which makes the use on an SSD with a PCIe interface cumbersome.
2) Your PCIe standard is 2.0, which makes connecting an SSD to a PCIe interface a bad idea.
3) In general, you will not notice a difference in speed between an SSD connected to a SATA interface and one connected to PCIe. PCIe-connected SSDs only make sense if you regularly transfer huge files ... and not to another device via a slow USB 2.0 port either. For a "normal" user, a SATA-connected SSD is totally sufficient.
4) Your motherboard only offers SATA2 ports, which operate at 3Gb/s. While it is not impossible to connect an SSD to them (it'll still be faster than your HDD), it will not allow you to make full use of the SSD's...