PRIME A520M-R-CSM

Socket AM4

AMD Socket AM4 for AMD Ryzen^™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series/ 3000 G-Series Desktop Processors*  
* Refer to www.asus.com for CPU support list.

AMD A520 Chipset

2 x DIMM slots, max. 64GB, DDR4 5100(OC)/ 4866(OC)/ 4666(OC)/ 4600(OC)/ 4466(OC)/ 4400(OC)/ 4333(OC)/ 4266(OC)/ 4200(OC)/ 4133(OC)/ 4000(OC)/ 3866(OC)/ 3733(OC)/ 3600(OC)/ 3466(OC)/ 3400(OC)/ 3333(OC)/ 3200/ 3000/ 2933/ 2800/ 2666/ 2400/ 2133, Un-buffered Memory*
Dual channel memory architecture
* ECC memory (ECC mode) support varies by CPU.
* Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/.

1 x HDMI^™ port**
* Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications.
** Supports 4K@60Hz as specified in HDMI 2.1.

AMD Ryzen^™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series/ 3000 G-Series Desktop Processors
1 x PCIe 3.0 x16 slot (supports x16 mode)
AMD A520 Chipset
1 x PCIe 3.0 x1 slot
- To ensure compatibility of the device installed, please refer to https://www.asus.com/support/ for the list of supported peripherals.

Supports 1 x M.2 slot and 4 x SATA 6Gb/s ports*
AMD Ryzen^™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series/ 3000 G-Series Desktop Processors
M.2 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes)
AMD A520 Chipset
4 x SATA 6Gb/s ports
* AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10.

1 x Realtek 1Gb Ethernet

Rear USB (Total 6 ports)
4 x USB 5Gbps ports (4 x Type-A)
2 x USB 2.0 ports (2 x Type-A)
Front USB (Total 6 ports)
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports

Realtek 7.1 Surround Sound High Definition Audio CODEC*
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- Supports up to 24-Bit/192 kHz playback
Audio Features
- Audio Shielding
- Premium audio capacitors
- Dedicated audio PCB layers
* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.

4 x USB 5Gbps ports (4 x Type-A)
2 x USB 2.0 ports (2 x Type-A)
1 x HDMI^™ port
1 x Realtek 1Gb Ethernet port
3 x Audio jacks
1 x PS/2 keyboard (purple) port
1 x PS/2 mouse (green) port

Fan and Cooling Related
1 x 4-pin CPU Fan header
1 x 4-pin Chassis Fan header
Power Related
1 x 24-pin Main Power connector
1 x 4-pin +12V Power connector
Storage Related
1 x M.2 slot (Key M)
4 x SATA 6Gb/s ports
USB
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Miscellaneous
1 x Clear CMOS header
1 x COM Port header
1 x Front Panel Audio header (F_AUDIO)
1 x S/PDIF Out header
1 x Speaker header
1 x SPI TPM header (14-1pin)
1 x 10-1 pin System Panel header

ASUS 5X PROTECTION III
- DIGI+ VRM
- LANGuard
- Overvoltage protection
- SafeSlot Core
- Stainless-steel back I/O
ASUS Q-Design
- Q-DIMM
- Q-LED Core
- Q-Slot
ASUS Thermal Solution
- Aluminum heatsink design

ASUS Exclusive Software
Armoury Crate
AI Suite 3
- Performance And Power Saving Utility
 TurboV EVO
 EPU
 DIGI+ VRM
 Fan Xpert
- EZ update
- PC Cleaner
ASUS CPU-Z
Norton 360 Deluxe (60 Days Free Trial)
WinRAR (40 Days Free Trial)
UEFI BIOS
ASUS EZ DIY
IT Management software supported
- ASUS Control Center Express(ACCE)
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
- ASUS UEFI BIOS EZ Mode

128 Mb Flash ROM, UEFI AMI BIOS

WOL by PME, PXE

Cables
2 x SATA 6Gb/s cables
Miscellaneous
1 x I/O shield
1 x M.2 anchor
Documentation
1 x ACC Express Activation Key Card
1 x Quick start guide

Windows^® 11, Windows^® 10 64-bit

micro-ATX Form Factor
9.3 inch x 7.6 inch ( 23.6 cm x 19.3 cm )