Asus Prime A520M-A AMD DDR4 Motherboard Supported CPU:  AMD Ryzen 5000/4000G Series & AMD Ryzen 3rd Generation Processors Chipset                :  AMD A520 BIOS                      :  256 Mb Flash ROM, UEFI AMI BIOS Form Factor: mATX Form Factor 9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm ) Expansion Slots PCI: 3rd Gen AMD Ryzen and 3rd Gen AMD Ryzen with Radeon Graphics Processors 1 x PCIe 3.0 x16 (x16 mode) AMD A520 Chipset 2 x PCIe 3.0 x1 M.2 Socket: 1 x M.2 Socket 3, with M Key, Type 2242/2260/2280/22110(PCIE 3.0 x4 and SATA modes) storage devices support Asus Prime A520M-A AMD DDR4 Motherboard Memory Type :  Dual Channel Memory Architecture Slots :  4 x DIMM slots Supported Memory: 4800(O.C.)/ 4600(O.C)/ 4466(O.C.)/ 4400(O.C)/ 4266(O.C.)/ 4133(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 ECC Memory (ECC mode) support varies by CPU Maximum Memory: 128GB Graphics Graphics: Integrated Graphics in the 3rd Gen AMD Ryzen with Radeon Graphics Processors 1 x D-Sub 1 x DVI-D 1 x HDMI 2.1(4K@60HZ) Connector & Ports HDMI : 1 x HDMI 2.1(4K@60HZ) D-Sub (s): 1 x D-Sub DVI-D (s): 1 x DVI-D USB (s): Rear USB Port ( Total 6 ) 4 x USB 3.2 Gen 1 port(s)(4 x Type-A) 2 x USB 2.0 port(s)(2 x Type-A) Front USB Port ( Total 6 ) 2 x USB 3.2 Gen 1 port(s)(2 x Type-A) 4 x USB 2.0 port(s)(4 x Type-A) LAN Port (s): Realtek RTL8111H 1Gb Ethernet ASUS LANGuard Supported Storage: Total supports 1 x M.2 slot(s) and 4 x SATA 6Gb/s ports 3rd Gen AMD Ryzen and 3rd Gen AMD Ryzen with Radeon Graphics Processors : 1 x M.2 Socket 3, with M Key, Type 2242/ 2260/ 2280/ 22110 (PCIE 3.0 x4 and SATA modes) storage devices support AMD A520 Chipset : 4 x SATA 6Gb/s port(s), Support Raid 0, 1, 10 Audio: Realtek ALC887 7.1 Surround Sound High Definition Audio CODEC - Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playback Audio Feature : - LED-illuminated design - Audio Shielding - Dedicated audio PCB layers - Premium Japanese audio capacitors Internal I/O Ports: 1 x CPU Fan connector(s) 2 x Chassis Fan connector(s) 1 x USB 3.2 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.2 Gen 1 port(s) 2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s) 1 x M.2 Socket 3 with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode) 4 x SATA 6Gb/s connector(s) 1 x S/PDIF out header(s) 1 x 24-pin EATX Power connector(s) 1 x 8-pin EATX 12V Power connectors 1 x Front panel audio connector(s) (AAFP) 1 x Clear CMOS jumper(s) 1 x System panel connector 1 x COM port header TPM (Trusted Platform Module ) 1 x SPI TPM header Manufacturing Warranty: 03 Years Warranty