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Green micro-ATX board with AM4 socket, two DDR4 slots, one PCIe x16, two PCIe x1, four SATA ports, one M.2 slot, HDMI DVI D-Sub video

ASUS

ASUS PRIME A320M-E AMD motherboard

SKU CH-4BV2-Q1A2A

Micro-ATX board for AM4 Ryzen CPUs with dual-channel DDR4 to 3200 MT/s, one PCIe 3.0 x16 slot, four SATA ports and one M.2 socket

  • ProcessorRyzen / Athlon / A-Series
  • ChipsetAMD A320
  • Form factorMicro ATX
  • CPU socketAM4
  • Memory slot count2 × 288pin (DDR4)
  • Supported memoryDDR4 2666
  • Supports AMD Ryzen and Athlon processors on AM4 socket
  • Dual-channel DDR4 memory up to 3200 MT/s overclocked with 32 GB capacity
  • One PCIe 3.0 x16 slot plus two PCIe x1 slots for expansion cards
  • Four SATA 6 Gb/s ports and one M.2 slot for storage drives
  • Realtek ALC887 8-channel audio and RTL8111H gigabit LAN built in

ASUS PRIME A320M-E AM4 foundation

The ASUS PRIME A320M-E is a micro-ATX motherboard built on the AMD A320 chipset for socket AM4 processors. It accepts Ryzen, Athlon and 7th generation A-series CPUs and provides a compact platform for everyday desktop builds.

Entry builds and upgrades from older AM4 boards

This board suits builders who need a basic AM4 foundation with dual-channel DDR4 memory up to 32 GB and a single PCI Express 3.0 x16 slot for a graphics card. It lacks the overclocking headroom and extra connectivity of B- or X-series chipsets, so enthusiasts chasing higher memory speeds or multi-GPU layouts should look elsewhere.

One PCI Express 3.0 x16 slot decides GPU options

The single PCI Express 3.0 x16 slot determines whether your graphics card fits the build plan. If the system requires only one discrete GPU, this slot covers the requirement; any design needing a second x16 lane or additional high-bandwidth add-in cards cannot use this motherboard.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $52.99
Cheaper than about 91% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Model namePRIME A320M-E
Processor
ProcessorRyzen / Athlon / A-Series
CPU socketAM4
ChipsetAMD A320
Memory
Memory slot count2 × 288pin (DDR4)
Supported memoryDDR4 2666
Max supported RAM32 GB
Memory channelsDual Channel
Storage
SATA ports4 x SATA 6Gb/s
M.2 slots1 x M.2
SATA and RAID support0/1/10
Graphics
Onboard video chipSupported only by CPU with integrated graphic
Audio & video
Audio chipRealtek ALC887
Sound channels8 Channels
Connectivity
Ethernet controllerRealtek RTL8111H
Maximum network speed1 Gbit/s
Ports & slots
PCIe 3.0 x16 slots1 x PCI Express 3.0 x16
PCIe x1 slots2 x PCI Express x1
Rear panel ports1 x D-Sub / 1 x DVI / 1 x HDMI / 1 x LAN (RJ45) / 3 x Audio Jacks
Video connectorsD-Sub + DVI
HDMI ports1 x HDMI
Ethernet port1 x RJ45
USB 3.1 ports5 x USB 3.1
Audio jacks3 Ports
Onboard USB headers2 x USB 3.1 + 4 x USB 2.0
Power
Power connectors24 Pin
Size & build
Form factorMicro ATX
Width and length8.9 in × 8.7 in
In the box
In the boxAccessories:User's manualI/O Shield2 x SATA 6Gb/s cable(s)1 x M.2 Anchor1 x Supporting DVD

Questions about this item

What case size and mounting holes does the Micro ATX board need?

The Micro ATX form factor fits cases with matching standoffs and I/O shield cut-out; secure it with standard motherboard screws.

How do I install the AM4 processor and what step is often missed?

Lift the socket lever, align the triangle on the CPU with the socket marker, lower the lever, then apply thermal paste before mounting the cooler.

When will the DDR4 memory slots or SATA ports need attention later?

DDR4 modules can be added up to 32 GB across the two 288-pin slots; SATA cables may be replaced if connectors loosen or cables degrade.

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