Asus PRIME B350M-A, mATX motherboard

Model Prime B350M-A/CSM
    
Supported CPU AM4
CPU TypeRyzen / Athlon / A-Series
    
Chipset AMD B350
    
Number of Memory Slots 4×288pin
Memory Standard
    Ryzen Processors, DDR4 2666/ 2400/ 2133
    7th Generation A-series/Athlon Processors, DDR4 2400/ 2133
Maximum Memory Supported 64GB
Channel Supported Dual Channel
   
Expansion Slots

PCI Express 3.0 x16
    Ryzen Processors
    1 x PCI Express 3.0/2.0 x16 slot (max.@x16 mode)

    7th Generation A-series/Athlon Processors
    1 x PCI Express 3.0/2.0 x16 slot (max.@x8 mode)

PCI Express x1
    2 x PCI Express 2.0 x1 slots

Storage Devices

SATA 6Gb/s
    6 x SATA 6Gb/s

M.2
    Ryzen Processors
    - 1 x M.2 socket 3 with M Key, Type 2242/2260/2280/22110 (PCIE 3.0 x4 and SATA modes) storage devices support*
    * When a SATA / PCIE mode M.2 device is installed, the M.2 Socket shares bandwidth with the SATA6G_5/6 ports

    7th Generation A-series/Athlon Processors
    - 1 x M.2 socket 3 with M Key, Type 2242/2260/2280/22110 (PCIE 3.0 x2 and SATA modes) storage devices support*
    * When a SATA mode M.2 device is installed, the M.2 Socket shares bandwidth with the SATA6G_5/6 ports

SATA RAID 0/1/10
    
Onboard Video Chipset
    Integrated AMD Radeon R Series Graphics in the 7th Generation A-Series APU
    Multi-VGA output support: HDMI, DVI-D, D-Sub port
    - Supports HDMI 1.4b with max. resolution 4096 x 2160@24Hz / 2560 x 1600@60Hz
    - Supports DVI-D with max. resolution up to 1920 x 1200 @60Hz
    - Supports D-Sub with max. resolution up to 1920 x 1200 @60Hz
    - Maximum shared memory of 2048MB

Audio Chipset Realtek ALC887-VD2
Audio 8 Channels

LAN Chipset Realtek 8111H
Rear Panel Ports

PS/2
    1 x PS/2 keyboard (purple)
    1 x PS/2 mouse port (green)

Video Ports
    1 x DVI-D port
    1 x D-Sub port

1 x HDMI
1 x RJ45
2 x USB 3.1
4 x USB 3.0

Audio Ports
    3 x Audio jacks support 8-channel audio output

Internal I/O Connectors

Onboard USB
    1 x USB 3.0 connector supports additional 2 USB 3.0 ports
    2 x USB 2.0/1.1 connectors support additional 4 USB 2.0/1.1 ports

Other Connectors
    1 x COM connector
    1 x CPU Fan connector
    1 x Fan RGB header
    1 x Chassis Fan connector (Support DC & PWM mode)
    1 x Front panel audio connector
    1 x 24-pin EATX Power connector
    1 x 8-pin ATX 12V Power connector
    1 x 2-pin Clear CMOS
    1 x System Panel connector
    1 x Speaker connector
    1 x S/PDIF out header

Physical Spec

Form Factor
    uATX