ASUS Prime series is expertly engineered to unleash the full potential of 3rd Generation AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime A520 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features. Specification:CPUAMD Socket AM4 for 3rd Gen AMD Ryzen and 3rd Gen AMD Ryzen with Radeon Graphics Processors* ChipsetAMD A520 Memory2 x DIMM, Max. 64GB, DDR4 4600(O.C.)/4400(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz, Un-buffered Memory*Onboard Graphics OutputsIntegrated Graphics in the 3rd Gen AMD Ryzen with Radeon Graphics Processors1x D-Sub 1 x HDMITM 2.1(4k@60HZ)PCI Slots1 x PCIe 3.0 x16 slot (supports x16 mode) 2 x PCIe 3.0 x1 slotsStorageSupports 1 x M.2 slot and 4 x SATA 6Gb/s ports3rd Gen AMD Ryzen and 3rd Gen AMD Ryzen with Radeon Graphics Processors: M.2 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes) AMD A520 Chipset:4 x SATA 6Gb/s port(s),Support Raid 0, 1, 10 Networking1 x Realtek RTL8111H 1Gb EthernetAudioRealtek ALC887 7.1 Surround Sound High Definition Audio Connectivity4 x USB 3.2 Gen 1 ports (4 x Type-A)2 x USB 2.0 ports (2 x Type-A) br> 1 x D-Sub1 x HDMI port1 x Realtek RTL8111H 1Gb Ethernet port3 x Audio jacks 1 x PS/2 Keyboard/Mouse combo port Internal Ports1 x 4-pin CPU Fan header1 x 4-pin Chassis Fan headers 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector 4 x SATA 6Gb/s ports1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports2 x USB 2.0 headers support additional 4 USB 2.0 ports1 x Clear CMOS header1 x S/PDIF out header1 x COM Port header1 x Front Panel Audio header (AAFP) 1 x 10-1 pin System Panel header1 x SPI TPM header (14-1pin)1 x Speaker headerForm FactormATX Form Factor; 8.9 inch x 8.7 inch ( 22.6 cm x 22.1 cm )