Gigabyte B550M Aorus Elite is a Micro ATX motherboardThe Gigabyte B550M Aorus Elite is a Micro ATX motherboard designed for use with AMD Ryzen processors. It supports Ryzen 5000/4000G Series & Ryzen 3rd Generation Processors and is based on the AMD B550 chipset. The motherboard has a single 256 Mbit flash BIOS and uses a licensed AMI UEFI BIOS. It is compliant with PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, and ACPI 5.0.The Gigabyte B550M Aorus Elite features four DDR4 memory slots with dual-channel architecture, supporting up to 128GB of DDR4 memory with speeds of up to DDR4 4733(O.C.). The motherboard has several expansion slots, including a single PCI Express x16 slot (PCIEX16) that supports PCIe 4.0 x16 mode with 3rd Generation AMD Ryzen processors and PCIe 3.0 x16 mode with new Generation AMD Ryzen with Radeon Graphics processors. There is also one PCI Express x16 slot (PCIEX2) supporting PCIe 3.0 x2 mode, one PCI Express x16 slot (PCIEX1_2) supporting PCIe 3.0 x1 mode, and one PCI Express x1 slot (PCIEX1_1) supporting PCIe 3.0 x1 mode.The Gigabyte B550M Aorus Elite has one M.2 socket, which is integrated into the CPU and supports both SATA and PCIe 4.0 x4/x2 SSDs with 3rd Generation AMD Ryzen processors and SATA and PCIe 3.0 x4/x2 SSDs with 3rd Generation AMD Ryzen with Radeon Graphics processors. There is also one M.2 connector (M2B_SB), integrated into the chipset, supporting Socket 3, M key, type 2242/2260/2280 SSDs with SATA and PCIe 3.0 x2 SSDs.For graphics, the Gigabyte B550M Aorus Elite has integrated graphics in the 3rd Generation AMD Ryzen with Radeon Graphics processors. It features one DVI-D port supporting a maximum resolution of 1920x1200@60 Hz and one HDMI port supporting a maximum resolution of 4096x2160@60 Hz. The motherboard has four USB 3.2 Gen 1 ports on the back panel, two USB 3.2 Gen 1 ports available through the internal USB header, and six USB 2.0/1.1 ports (four ports on the back panel, two ports available through the internal USB header). It also has a Realtek GbE LAN chip (1000 Mbit/100 Mbit) for Ethernet connectivity.Other features of the Gigabyte B550M Aorus Elite include a Realtek ALC887 codec for high definition audio, multiple internal I/O ports, and support for APP Center, @BIOS, EasyTune, Fast Boot, Game Boost, ON/OFF Charge, and more. It has a Trusted Platform Module (TPM) header (2x6 pin, for the GC-TPM2.0_S module only). The motherboard also includes several headers for RGB LED lighting and addressable LED strips.FeaturesSupports 3rd Gen AMD Ryzen processorsDual-channel DDR4 memory architecture with up to 128GB capacityPCIe 4.0 support for faster data transfer and improved performanceAdvanced thermal design with heatsinks and multiple fan headersUSB 3.2 Gen 2 Type-A and Type-C connectors for high-speed data transferHDMI 2.1 with support for up to 4K resolution and up to 60Hz refresh rateRealtek 2.5GbE LAN for fast and reliable network connectivityAudio features include high-quality capacitors, audio noise guard, and a smart headphone ampRGB Fusion 2.0 with addressable LED and RGB LED headers for customizable lightingQ-Flash Plus allows for easy BIOS updates without a CPU or memory installed..