ASRock A320M Pro4 AMD Socket AM4 Ryzen Micro ATX DDR4 D-Sub/DVI-D/HDMI M.2/Ultra M.2 USB 3.1/Type-C Motherboard





May Require BIOS Update For APUs
Manufacturer:ASROCK
Manu. Part Code:A320M PRO4
EAN / UPC:4717677333183
Order Code:MBASR-A320MPRO4
Weight:1.2kg

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Manufacturer's Website: www.asrock.com.tw
Warranty: 2 Year Return to Base Warranty.
- Micro ATX
- ASRock Super Alloy
- Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Summit Ridge)
- Supports DDR4 3200+ (OC) (Ryzen CPU) / 2400 (A-series APU)
- 1 PCIe 3.0 x16, 1 PCIe 2.0 x16, 1 PCIe 2.0 x1
- Graphics Output:HDMI, DVI-D, D-Sub
- Supports Triple Monitor
- 7.1 CH HD Audio (Realtek ALC892 Audio Codec), ELNA Audio Caps
- 4 SATA3, 1 Ultra M.2 (PCIe Gen3 x4), 1 M.2 (SATA3)
- 7 USB 3.1 Gen1 (1 Type-C, 2 Front, 4 Rear)
- Realtek Gigabit LAN

CPU
- Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Summit Ridge)
- Digi Power design
- 9 Power Phase design
- Supports 95W Air Cooling

Chipset
- AMD Promontory A320

Memory
- Dual Channel DDR4 Memory Technology
- 4 x DDR4 DIMM Slots
- AMD Ryzen series CPUs support DDR4 3200+(OC)/2933(OC)/2667/2400/2133 ECC & non-ECC, un-buffered memory*
- AMD 7th Gen A-Series APUs support DDR4 2400/2133 ECC & non-ECC, un-buffered memory**
- Max. capacity of system memory: 64GB**
- 15 Gold Contact in DIMM Slots***
*Please refer to Memory Support List on ASRock's website for more information.
**Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows® 32-bit OS. For Windows® 64-bit OS with 64-bit CPU, there is no such limitation.

Form Factor
- Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm
- Solid Capacitor design

BIOS
- 128Mb AMI UEFI Legal BIOS with multilingual GUI support
- Supports "Plug and Play"
- ACPI 5.1 compliance wake up events
- Supports jumperfree
- SMBIOS 2.3 support
- DRAM Voltage multi-adjustment

LAN
- PCIE x1 Gigabit LAN 10/100/1000 Mb/s
- Realtek RTL8111GR
- Supports Wake-On-LAN
- Supports Lightning/ESD Protection
- Supports LAN Cable Detection
- Supports Energy Efficient Ethernet 802.3az
- Supports PXE

Audio
- 7.1 CH HD Audio with Content Protection (Realtek ALC892 Audio Codec)*
- Premium Blu-ray Audio support
- Supports Surge Protection
- ELNA Audio Caps
*To configure 7.1 CH HD Audio, it is required to use an HD front panel audio module and enable the multi-channel audio feature through the audio driver.

Expansion
AMD Ryzen series CPUs
- 1 x PCI Express 3.0 x16 Slot (PCIE2: x16 mode)*
- 1 x PCI Express 2.0 x16 Slot (PCIE3: x2 mode)
AMD 7th A-Series APUs
- 1 x PCI Express 3.0 x16 Slot (PCIE2: x8 mode)*
- 1 x PCI Express 2.0 x16 Slot (PCIE3: x2 mode)
- 1 x PCI Express 2.0 x1 Slot
*Supports NVMe SSD as boot disks

Onboard Graphics
- Integrated AMD Radeon™ R-Series Graphics in A-series APU*
- DirectX 12, Pixel Shader 5.0
- Max. shared memory 2GB
- Three graphics output options: D-Sub, DVI-D and HDMI
- Supports Triple Monitor
- Supports HDMI with max. resolution up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30Hz
- Supports DVI-D with max. resolution up to 1920x1200 @ 60Hz
- Supports D-Sub with max. resolution up to 1920x1200 @ 60Hz
- Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI Port (Compliant HDMI monitor is required)
- Supports HDCP with DVI-D and HDMI Ports
- Supports Full HD 1080p Blu-ray (BD) playback with DVI-D and HDMI Ports
*Actual support may vary by CPU

Storage Interface
- 4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug*
- 1 x Ultra M.2 Socket (M2_1), supports M Key type 2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32 Gb/s) (with Ryzen Series CPU) or Gen3 x2 (16 Gb/s) (with A-Series APU)**
- 1 x M.2 Socket (M2_2), supports M Key type 2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module**
*M2_2 and SATA3_3 share lanes. If either one of them is in use, the other one will be disabled.
**Supports NVMe SSD as boot disks
Supports ASRock U.2 Ki

Internal I/O Connectors
- 1 x COM Port Header
- 1 x TPM Header
- 1 x Power LED and Speaker Header
- 1 x RGB LED Header*
- 1 x AMD Fan LED Header*
- 1 x CPU Fan Connector (4-pin)**
- 2 x Chassis Fan Connectors (1 x 3-pin, 1 x 4-pin - Smart Fan Speed Control)***
- 1 x 24 pin ATX Power Connector
- 1 x 8 pin 12V Power Connector
- 1 x Front Panel Audio Connector
- 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
- 1 x USB 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports) (Supports ESD Protection)
*Supports in total up to 12V/3A, 36W LED Strip
The AMD Fan LED Header supports LED strips of maximum load of 3A (36W) and length up to 2.5M.
**The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
***CHA_FAN1 can auto detect if 3-pin or 4-pin fan is in use.

Back Panel I/O Connectors
- 1 x PS/2 Mouse Port
- 1 x PS/2 Keyboard Port
- 1 x D-Sub Port
- 1 x DVI-D Port
- 1 x HDMI Port
- 2 x USB 2.0 Ports (Supports ESD Protection)
- 1 x USB 3.1 Gen1 Type-C Port (Supports ESD Protection)
- 4 x USB 3.1 Gen1 Ports (Supports ESD Protection)
- 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
- HD Audio Jacks: Line in / Front Speaker / Microphone

Software and UEFI
Software
- ASRock RGB LED
- ASRock APP Charger
- ASRock XFast LAN
UEFI
- ASRock Full HD UEFI
- ASRock Instant Flash
- ASRock Internet Flash
- ASRock Easy RAID Installer
*These utilities can be downloaded from ASRock Live Update & APP Shop.

Hardware Monitor
- CPU/Chassis temperature sensing
- CPU/Chassis Fan Tachometer
- CPU/Chassis Quiet Fan
- CPU/Chassis Fan multi-speed control
- Voltage monitoring: +12V, +5V, +3.3V, Vcore

OS
- Microsoft Windows 10 64-bit

Support CD
- Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar

Accessories
- Quick Installation Guide, Support CD, I/O Shield
- 2 x SATA Data Cables
- 2 x Screws for M.2 Sockets

Regulations/Certifications/Remarks
- FCC, CE
- ErP/EuP ready (ErP/EuP ready power supply is required)

Additional Features
ASRock Super Alloy
- Premium 42A Power Choke
- Sapphire Black PCB
- High Density Glass Fabric PCB
- 2oz Copper PCB
ASRock Ultra M.2 (PCIe Gen3 x4)
ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
ASRock Live Update & APP Shop
Memory
Supported memory typesDDR4-SDRAM
Memory slots typeDIMM
Supported memory clock speeds2133,2400,2667,2933,3200 MHz
Number of memory slots4
Memory channelsDual
ECCY
Non-ECCY
Maximum internal memory64 GB
Unbuffered memoryY
Processor
Processor familyAMD
Compatible processor seriesAMD A,Ryzen
Processor socketSocket AM4
Maximum number of SMP processors1
Internal I/O
USB 2.0 connectors2
USB 3.0 (3.1 Gen 1) connectors1
Number of SATA III connectors4
CPU fan connectorY
Number of COM connectors1
ATX Power connector (24-pin)Y
Number of chassis fan connectors2
Front panel audio connectorY
TPM connectorY
EPS power connector (8-pin)Y
Number of M.2 (M) slots1
Audio connectorY
Back panel I/O ports
USB 2.0 ports quantity2
USB 3.0 (3.1 Gen 1) Type-A ports quantity4
USB 3.0 (3.1 Gen 1) Type-C ports quantity1
Ethernet LAN (RJ-45) ports1
PS/2 ports quantity2
VGA (D-Sub) ports quantity1
DVI-D ports quantity1
HDMI ports quantity1
Microphone inY
Networking
Ethernet LANY
LAN controllerRealtek RTL8111GR
Wake-on-LAN readyY
Ethernet interface typeGigabit Ethernet
Performance
Component forPC
Motherboard chipset familyAMD
Motherboard chipsetAMD A320
Motherboard form factormicro ATX
Audio output channels7.1 channels
Audio systemRealtek ALC892
PC health monitoringCPU, Fan, Temperature, Voltage
Windows operating systems supportedWindows 10 Education x64,Windows 10 Enterprise x64,Windows 10 Home x64,Windows 10 Pro x64
CertificationFCC, CE, ErP/EuP
Graphics
HDCPY
Graphics adapter familyAMD
DirectX version12.0
Maximum resolution4096 x 2160 pixels
Number of displays supported3
Expansion slots
PCI Express x1 (Gen 2.x) slots1
PCI Express x16 (Gen 2.x) slots1
PCI Express x16 (Gen 3.x) slots1
BIOS
BIOS typeUEFI AMI
BIOS memory size128 MB
ACPI version5.1
Weight & dimensions
Width244 mm
Depth244 mm
Packaging content
Cables includedSATA
Bundled softwareASRock RGB LED, ASRock APP Charger, ASRock XFast LAN
Drivers includedY
Quick installation guideY
Processor Info
Socket TypeFamilyPart NumberCoreClock SpeedCachePowerBios
AM4Ryzen 7Summit Ridge3.6GHz4MB95WAll

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