Mainboard|ASUS|AMD A320|SAM4|MicroATX|1xPCI-Express 3.0 1x|1xPCI-Express 3.0 16x|Memory DDR4|Memory slots 2|1x15pin D-sub|1xHDMI|2xUSB 2.0|4xUSB 3.1|2xPS/2|1xRJ45|3xAudio port|PRIMEA320M-R-SI

Expansion Slots AMD Ryzen 1st Generation Processors 1 x PCIe 3.0/2.0 x16* AMD Ryzen™ Processors/ 7th Generation A-series/Athlon™ Processors 1 x PCIe 3.0/2.0 x16 (max. at x8 mode) 1 x PCIe 3.0/2.0 x1 slot * The working speed of the PCIe 3.0/2.0 x16 slot varies by models.