ASUS AMD B550 (Ryzen AM4) micro ATX gaming motherboard with PCIe 4.0, dual M.2, 10 DrMOS power stages, 2.5 Gb Ethernet, HDMI, DisplayPort, SATA 6 Gbps, USB 3.2 Gen 2 Type-A and Type-C, and Aura Sync RGB lighting support AMD AM4 socket: Ready for 3rd Gen AMD Ryzen™ and 3rd Gen AMD Ryzen™ with Radeon™ Graphics Processors Enhanced power solution: 8+2 DrMOS power stages, ProCool connector, military-grade TUF components, and Digi+ VRM for maximum durability Comprehensive cooling: VRM heatsinks, PCH fanless heatsink, M.2 heatsink, hybrid fan headers and Fan Xpert 2+ utility Next-gen connectivity: PCIe 4.0 M.2, USB 3.2 Gen 2 Type-A and Type-C support Made for online gaming: 2.5 Gb Ethernet, TUF LANGuard and TurboLAN technology Realtek S1200A codec: Pristine audio quality with unprecedented 108 dB signal-to-noise ratio for stereo line out and 103 dB SNR for line in AI noise-canceling microphone: Provides crystal-clear in-game voice communication CPU Build in AMD AM4 Socket for 3rd Gen AMD Ryzen™ and 3rd Gen AMD Ryzen™ with Radeon™ Graphics Processors * Chipset AMD B550 Memory 3rd Gen AMD Ryzen™ Processors 4 x DIMM, Max. 128GB, DDR4 3rd Gen AMD Ryzen™ with Radeon™ Graphics Processors 4 x DIMM, Max. 128GB, DDR4 Graphic 1 x DisplayPort 1.2 1 x HDMI 2.1(4K@60HZ) Multi-GPU Support Supports AMD 2-Way CrossFireX Technology Expansion Slots 3rd Gen AMD Ryzen™ Processors 1 x PCIe 4.0 x16 (x16 mode) 3rd Gen AMD Ryzen™ with Radeon™ Graphics Processors 1 x PCIe 3.0 x16 (x16 mode) AMD B550 Chipset 1 x PCIe 3.0 x16 (x4 mode) 1 x PCIe 3.0 x1 * Support PCIe bifurcation for RAID on CPU function. Storage Total supports 2 x M.2 slot(s) and 4 x SATA 6Gb/s ports LAN Realtek RTL8125B 2.5Gb Ethernet TUF LANGuard mATX Form Factor 24.4 cm x 24.4 cm