The ASUS PRIME A520M-A II/CSM is a Micro-ATX motherboard designed for AMD processors, built around the AMD A520 chipset. It supports a wide range of AMD Ryzen processors, including the Ryzen 3000, 4000, and 5000 Series, making it a solid choice for users looking to build or upgrade a capable desktop system. With dimensions of 244 x 244 mm, this board fits comfortably in standard Micro-ATX cases and is powered through a 24-pin ATX connector alongside an 8-pin EPS power connector.
Memory and Storage Capabilities
The ASUS PRIME A520M-A II/CSM features four DIMM slots supporting DDR4 memory in a dual-channel configuration, with speeds up to 3200 MHz and a maximum capacity of 128 GB. For storage, the board includes four SATA III connectors and one M.2 slot, providing flexible options for both traditional drives and high-speed solid-state storage. The unbuffered memory support ensures broad compatibility with standard DDR4 modules.
Connectivity and Expansion
This motherboard offers a well-rounded set of connectivity options. Display output is handled through one HDMI port, one DisplayPort, and one VGA port, supporting a variety of monitor setups. Expansion is covered by one PCI Express 3.0 x16 slot and two PCI Express 3.0 x1 slots. Networking is provided via a Gigabit Ethernet port. Audio is managed by a Realtek ALC897 chip, with S/PDIF output and a front panel audio connector included. Additional features include a TPM connector, PS/2 port, and UEFI AMI BIOS with 128 Mbit of memory.
Product number manufacturer:
90MB17H0-M0EAYC
Audio
BIOS
Connectivity
USB 3.2 (Gen 1) type C ports:
0
USB 3.2 (Gen 2) type A ports:
0
USB 3.2 (Gen 2) type C ports:
0
Expansion slots
PCI Express 3.0 x1 slots:
2
PCI Express 3.0 x16 slots:
1
Internal I/O
ATX Power connector (24-pin):
Chassis fan connector(s):
2
EPS power connector (8-pin):
Front panel audio connector:
USB 3.1 (3.1 Gen 2) connectors:
0
USB 3.1 (Gen 1) header(s):
1
Memory
Supported memory clock speeds:
3200 MHz
Networking
Network technology (wired):
Physical characteristics
Processor
Compatible processor series:
AMD Ryzen 3000 Series, AMD Ryzen 4000 Series, AMD Ryzen 5000 Series
Technical details
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