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A320M Pro4 AMD A320 (Socket AM4) DDR4 Micro ATX MotherboardMainstream Motherboard (Micro-ATX) with AMD A320 Chipset, with 2x PCIe 3.0 x16 & 1x PCIe 2.0 x16 (x4), 1x M.2 (PCIe 3.0 x4) & 4x SATA 6G, 7x USB 3.0 & 6x USB 2.0 Motherboards with the AM4 socket serve as the platform for the AMD Ryzen (Summit Ridge) quad-core, hexa-core and octa-core CPUs as well as "Bristol Ridge" and "Raven Ridge" desktop APUs from the A-series with integrated GPUs unlike the old Athlon X4 which came without an iGPU. The advanced AMX X370, B350 and A320 chipsets are aimed at the enthusiast, mainstream and entry-level segments coming with an abundance of modern I/O interfaces and connectors for hardware peripherals, while additional data links are provided by the GPU/APU.
The processor's integrated memory controller supports AM4 motherboards as well as fast and energy- efficient DDR4 RAM in dual-channel mode, as well as specialist ECC error-correcting memory depending on the motherboard. The advanced "Zen" microarchitecture in conjunction with the AM4 platform forms the perfect foundation for high-performance systems in a range of applications.
The Layout of the Micro-ATX ASRock A320M Pro4The ASRock A320M Pro4 is a motherboard utilising the micro-ATX format and comes with a lightning-fast 16x PCI-Express 3.0 slot. Furthermore a PCIe 2.0 slot with a 4x interface and a PCIe x1- interface slot are provided for compatibility with additional expansion cards. The four RAM slots accept up to 64 GB of DDR4 RAM at a speed of 2.666 Megahertz. The range of internal connectors includes, among other things, two USB 3.0 and two USB 2.0 headers for a total of 4 ports.
Special Features at a Glance:
- 1x PCIe 3.0 x16 for high-end gaming graphics cards
- 5x USB 3.0 Type A & Type C + 1x Turbo M.2 slot PCIe 3.0 x4
- DDR4-RAM up to 2.666 MHz
- Modern UEFI-BIOS including temperature monitoring
Data storage devices such as SSDs and hard drives are managed via four SATA 6G connectors (incl. RAID support) as well as two horizontal M.2 slots, one of which comes with access to four PCI-Express 3.0 lanes and, consequently, extremely high access speeds of up to 32 Gbit/s. M.2 SSDs measuring from 42 mm to 110 mm in length can be used and furthermore the cutting-edge NVM-Express protocol is also supported. This protocol has been optimised to take advantage of the parallel processing utilised by modern PCIe SSDs.
A further highlight of the ASRock A320M Pro4 is to be found on the reverse of the motherboard, specifically the fact that the motherboard includes a USB 3.0 Type C connector. This new type of USB Type C port is particularly slim and allows connectors to be inserted in either direction. USB 3.0 or USB 3.1 Gen 1 can reach a maximum transfer rate of up to 5 Gbit/s per port.
The I/O shield located on the rear of the mainboard provides connectivity for additional devices and components via USB 3.0 and USB 2.0, PS/2 as well as three audio jacks for sound on the ASRock A320M Pro4. The motherboard also supports a total of three monitor outputs via the integrated APU/GPU including HDMI, VGA and DVI-D.
Socket AM4 Chipsets at a Glance:
|X370 Chipset||B350 Chipset||A320 Chipset||Ryzen CPU|
|PCIe 3.0 / 2.0:||x4 / x8||x4 / x6||x4 / x4||x16 + x4 + x4 / -|
|USB 3.1 / 3.0 / 2.0:||2 / 6 / 6||2 / 2 / 6||1 / 2 / 6||- / 4 / -|
|RAM:||DDR4||DDR4||DDR4||DDR4 Memory Controller|
|SATA Raid:||0 / 1 / 10||0 / 1 / 10||0 / 1 / 10||-|
|Overclocking:||?||?||?||? (Unlocked CPU & XFR)|
|Multi-GPU:||? CrossFire & SLI||??||??||-|
Compatibility Note for CPU Coolers Utilising AMD Socket AM4:Due to the revision in mounting hole distances for the new AM4 socket, CPU coolers with rear mounts will - compared with preceding sockets e.g. AM2(+), AM3(+) or FM2(+) - require AM4-compatible mounting brackets. Please ensure compatibility prior to purchasing. CPU coolers that are attached directly to the retention bracket of the motherboard retain compatibility.
- Format: Micro-ATX
- Chipset: AMD A320
Socket: AM4 (for Summit Ridge / Bristol Ridge / Raven Ridge)
4x DDR4 (2.666 MHz)
max. 64 GB
1x PCIe 3.0 x16*
1x PCIe 2.0 x16 (electrical x4)
Multi-GPU Configurations: 2-way CrossFireX (16*/4)
2x PCIe 2.0 x1
- Internal Connectors:
4x SATA 6G (RAID 0, 1, 10)
1x Turbo M.2 (M-Key, PCIe 3.0 x4** with max. 32 Gbit/s, horizontal, sized 2242 to 22110)
1x Turbo M.2 (M-Key, SATA 6G with max. 6 Gbit/s, horizontal, sized 2242 bis 22110)
2x USB 3.0 Header (4 Ports)
2x USB 2.0 Header (4 Ports)
3x 4-Pin Fans (PWM)
1x Serial-Port Header (COM)
- External Connectors:
1x USB 3.0 (Type C, max. 5 Gbit/s)
4x USB 3.0 (Type A, max. 5 Gbit/s)
2x USB 2.0
1x Gigabit LAN (Realtek 8111H)
3x Audio (ALC887)
1x VGA (D-Sub)
2x PS/2-Port (Keyboard / Mouse)
- Power Supply:
1x 24-Pin ATX12V
1x 8-Pin ATX12V
*(x8 with APU or Athlon X4)
**(x2 with APU or Athlon X4)
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