MSI Alaplap AM4 B550 GAMING GEN3 AMD B550, ATX

CPU Supports AMD Ryzen™ 5000 Series, 5000 G-Series, 4000 G-Series, and 3000 Series processors Processor socket AM4 CHIPSET AMD ®  B550 Chipset MEMORY 4x DDR4 memory slots, supporting up to 128GB  Supports 1866/ 2133/ 2400/ 2667/ 2800/ 2933/ 3000/ 3066/ 3200 MHz by JEDEC Supports DDR4 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 3600/ 3733/ 3866/ 4000/ 4133/ 4266/ 4400+ MHz by A-XMP OC MODE 1DPC 1R max speed 4400 MHz 1DPC 2R max speed 3733 MHz 2DPC 1R max speed 3866 MHz 2DPC 2R max speed 3466 MHz Dual channel memory architecture Supports non-ECC UDIMM memory Supports ECC UDIMM memory (non-ECC mode) Supports un-buffered memory Please refer for more information on compatible memory. EXPANSION SLOTS 2x PCIe x16 slots PCI_E1 slot (From CPU) Supports PCIE x16 PCI_E4  (From B550 chipset) Supports PCIe x4 4x PCIe x1 slots PCI_E2, E3, E5 and E6 slots (From B550 chipset) Supports PCIe X1 PCI_E4 will run x1 speed when installing devices in PCI_E2/ PCI_E3/ PCI_E5 slot. MULTI-GPU Supports AMD CrossFire™ Technology ONBOARD GRAPHICS 1x DVI-D port, support a maximum resolution of 1920x1200 @60Hz  1x HDMI™ port, supports a maximum resolution of 4096x2160 @30Hz, 2560x1600 @60Hz  / Maximum shared memory of 16 GB Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed. SATA PORTS 6x SATA 6Gb/s ports (From B550 chipset) SSD SLOTS 1x slot (Key M) M2_1 slot (From CPU) Supports PCIe x4 Supports SATA 6Gb/s Supports 2260/ 2280/ 22110 storage devices RAID Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices AUDIO Realtek ®  ALC897 Codec High Definition Audio LAN 1x Realtek ®  RTL8111H LAN controller