ASUS Prime B450M-A II Motherboard AMD B450 AM4 Micro ATX DDR4

The ASUS Prime B450M-A II motherboard delivers a solid foundation for your AMD AM4 build, featuring the AMD B450 chipset, support for Ryzen 5000 Series processors, DDR4 memory up to 4400MHz (OC), and a compact Micro-ATX form factor. With M.2 PCIe 3.0 x4 storage, USB 3.2 Gen 2 connectivity, and BIOS FlashBack, the ASUS Prime B450M-A II is designed for builders seeking well-rounded performance and flexibility.

Performance and Compatibility

The ASUS Prime B450M-A II utilizes the AMD AM4 socket, supporting AMD Ryzen 5000 Series, 5000 G-Series, 4000 G-Series, 3rd, 2nd, and 1st Gen AMD Ryzen processors, as well as Athlon with Radeon Vega Graphics processors. The AMD B450 chipset provides a balanced platform for both gaming and productivity. Four DDR4 DIMM slots support up to 128GB of dual-channel memory with overclocking speeds reaching 4400MHz, ensuring ample bandwidth for demanding applications.

Storage and Expansion

Storage flexibility on the ASUS Prime B450M-A II includes one M.2 slot (Key M) supporting PCIe 3.0 x4 and SATA modes, compatible with SSD form factors from 2242 up to 22110. Six SATA 6Gb/s ports provide additional storage expansion for HDDs and SSDs. For expansion, the board features one PCIe 3.0 x16 slot for graphics cards and two PCIe 2.0 x1 slots for additional peripherals, all within a 244mm x 240mm Micro-ATX footprint.

Connectivity and Audio

The ASUS Prime B450M-A II offers robust connectivity with two USB 3.2 Gen 2 Type-A ports delivering up to 10Gbps, four USB 3.2 Gen 1 Type-A ports, and four USB 2.0 ports on the rear panel. Front panel headers support two additional USB 3.2 Gen 1 ports and four USB 2.0 ports. Networking is handled by the Realtek RTL8111H 1Gb Ethernet controller, while audio is powered by the Realtek ALC887/897 7.1-Channel High Definition Audio CODEC supporting up to 24-Bit/192kHz playback with jack-detection and multi-streaming.

Design and Features

The ASUS Prime B450M-A II includes BIOS FlashBack for effortless BIOS updates without requiring an installed CPU or memory. AURA Sync RGB support allows customizable lighting synchronization with compatible components. Fan Xpert 2+ provides advanced fan control for optimized cooling, and the comprehensive ASUS software suite including Armoury Crate and AI Suite 3 enables automated system tuning. Display outputs include HDMI 2.0b, DVI-D, and D-Sub, supporting integrated AMD Radeon Vega Graphics for builds without a discrete GPU.