ASUS PRIME B550-PLUS is an AMD B550 ATX motherboard with dual M.2, PCIe 4.0, 1 Gb Ethernet, DisplayPort/HDMI, SATA 6 Gbps, USB 3.2 Gen 2 Type-A and Type-C, and Aura Sync RGB headers support. It supports AMD Ryzen 5000, Ryzen 4000 G-Series, and Ryzen 3000 CPUs. The motherboard features 4x 288-pin sockets supporting up to 128GB of DDR4 memory, Realtek ALC887 7.1 channel HD audio, and Realtek RTL8111H Gigabit LAN controller with Asus LANGuard. It includes 6x SATA 6Gb/s, 2x M.2 slots, DisplayPort, HDMI, RJ45, 5x audio jacks, 1x S/PDIF, 2x USB 2.0, 4x USB 3.2 Gen 1, and 1x USB 3.2 Gen 2 USB-C port. Additional features include VRM and PCH heatsinks, Fan Xpert 4, audio shielding with LED illumination, SafeSlot Core, and UEFI BIOS.