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ATX motherboard with silver heatsinks black PCB and rear I/O panel

ASUS

ASUS Prime X370-A AMD motherboard

SKU CH-30TS-MB9TE

ATX motherboard for AM4 CPUs with four DDR4 slots up to 64 GB, one M.2 socket, six SATA ports, HDMI, DVI, VGA, USB 3.1 and gigabit LAN

  • CPU Socket TypeAM4
  • CPU TypeA-Series / Athlon with Radeon Graphics / Ryzen 1000 Series /
  • ChipsetAMD X370
  • Number of Memory Slots4x288pin (DDR4)
  • Memory StandardRyzen Processors: DDR4 3200(O.C.)/ 2933(O.C.)/ 2666/ 2400/ 2
  • Maximum Memory Supported64GB
  • Supports up to 64GB DDR4 memory
  • M.2 socket 3 for PCIe 3.0 x4 storage
  • HDMI 1.4b outputs 4096 x 2160 at 24 Hz
  • Realtek RTL8111H provides 1Gbps wired LAN
  • SafeSlot reinforces PCIe x16 slot for heavy GPUs

AM4 Platform Foundation

The ASUS Prime X370-A is an ATX motherboard built on the AMD X370 chipset for AM4 socket processors. It supports Ryzen 1000 through 5000 series CPUs and 7th generation A-Series or Athlon APUs. Four 288-pin slots accept up to 64GB of DDR4 memory. Integrated graphics output via HDMI 1.4b, DVI-D and VGA is available when using a compatible APU.

Upgrade From Older AM4 Boards

This board replaces earlier 300-series models that lack native NVMe M.2 support or USB 3.1 Gen 1 ports. The single M.2 Socket 3 M-key slot handles 2242, 2260, 2280 and 22110 drives in PCIe 3.0 x4 or SATA mode with Ryzen CPUs. Six SATA 6Gb/s ports provide RAID 0, 1 and 10. The move is worth it when adding fast M.2 storage or needing more USB 3.1 connectivity without a PCIe add-in card.

Sustained Load Behaviour

5X Protection III hardware safeguards and a reinforced SafeSlot PCIe 3.0 x16 slot protect components during extended high-power operation. FanXpert 2+ controls chassis and CPU fans based on thermal sensors for steady airflow under continuous load. The Realtek RTL8111H Gigabit LAN and ALC887 8-channel audio maintain stable I/O during long sessions. A secondary PCIe 2.0 x16 slot runs at x4 mode and two PCIe 2.0 x1 slots remain available for additional cards.

Highlights

  • Supports up to 64GB DDR4 memory
  • M.2 socket 3 for PCIe 3.0 x4 storage
  • HDMI 1.4b outputs 4096 x 2160 at 24 Hz
  • Realtek RTL8111H provides 1Gbps wired LAN
  • SafeSlot reinforces PCIe x16 slot for heavy GPUs

Specifications

BrandASUS
ModelPrime X370-A
CPU Socket TypeAM4
CPU TypeA-Series / Athlon with Radeon Graphics / Ryzen 1000 Series / Ryzen 2000 Series / Ryzen 2000G Series / Ryzen 3000 Series / Ryzen 3000G Series / Ryzen 4000 Series / Ryzen 4000G Series / Ryzen 5000 Series / Ryzen 5000G Series
ChipsetAMD X370
Number of Memory Slots4x288pin (DDR4)
Memory StandardRyzen Processors: DDR4 3200(O.C.)/ 2933(O.C.)/ 2666/ 2400/ 2133 *1
7th Gen A-series/ Athlon Processors: DDR4 2400/ 2133 *
*1 Due to the limitation of AMD Ryzen processors, memory frequencies higher than DDR4 2666 MHz are supported only when using one DIMM.
* Hyper DIMM support is subject to the physical characteristics of individual CPUs.
Maximum Memory Supported64GB
PCI Express 3.0 x16AMD Ryzen Processors:
1 x PCIe 3.0/2.0 x16 (x16 mode)
AMD 7th Generation A-series/Athlon Processors:
1 x PCIe 3.0/2.0 x16 (x8 mode)
PCI Express 2.0 x161 x PCIe 2.0 x16 (max at x4 mode)
PCI Express x12 x PCIe 2.0 x1
PCI Slots2 x PCI Slots
Serial ATA (SATA)6 x SATA 6Gb/s
M.2Ryzen Processors:
1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)
7th Gen A-series/Athlon Processors:
1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 2 mode)
SATA RAID0/1/10
Onboard Video ChipsetIntegrated AMD Radeon R Series Graphics in the 7th Generation A-Series APU *2
Multi-VGA output support: HDMI/DVI-D/RGB ports
- Supports HDMI 1.4b with max. resolution 4096 x 2160 @ 24 Hz / 2560 x 1600 @ 60 Hz
- Supports DVI-D with max. resolution 1920 x 1200 @ 60 Hz
- Supports RGB with max. resolution 1920 x 1200 @ 60 Hz
Maximum shared memory of 2048MB
*2 AMD Ryzen Processor does not support
Audio ChipsetRealtek ALC887-VD2
Audio Channels8 Channels
LAN ChipsetRealtek RTL8111H
Max LAN Speed1Gbps
Back I/O Ports1 x D-Sub / 1 x DVI-D / 1 x HDMI / 1 x LAN (RJ45) / 1 x PS/2 / 2 x USB 2.0/1.1 / 3 x Audio Jacks / 4 x USB 3.1 Gen 1
PS/21 x PS/2 keyboard/mouse port
Video Ports1 x DVI-D
1 x D-Sub
HDMI1 x HDMI
RJ451 x RJ45
USB 3.12 x USB 3.1
USB 3.04 x USB 3.0
USB 1.1/2.02 x USB 2.0
Audio Ports3 Ports
Onboard USB1 x USB 3.0 connector(s) support(s) additional 2 USB 3.0 port(s)
2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)
Other Connectors1 x Fan RGB header
1 x COM port(s) connector(s)
1 x CPU Fan connector(s) (1 x 4-pin)
2 x Chassis Fan connector(s) (2 x 4-pin)
1 x S/PDIF out header(s)
1 x Front panel audio connector(s) (AAFP)
1 x System panel(s)
1 x Clear CMOS jumper(s)
Form FactorATX
Dimensions (W x L)12.0" x 9.3"
Power Pin1 x 8-pin EATX 12 V Power connector
1 x 24-pin EATX Power connector(s)
FeaturesMulti-GPU Support:
Supports AMD CrossFireX Technology
Special Features:
ASUS 5X Protection III:
- ASUS SafeSlot Core: Fortified PCIe Slot prevents damage
- ASUS LANGuard: Protects against LAN surges, lightning strikes and static-electricity discharges!
- ASUS Overvoltage Protection: World-class circuit-protecting power design
- ASUS Stainless-Steel Back I/O: 3X corrosion-resistance for greater durability!
- ASUS DIGI+ VRM: 6 Phase digital power design
ASUS Exclusive Features:
- AI Suite 3
- Ai Charger
- ESD Guards
ASUS Quiet Thermal Solution:
- Stylish Fanless Design Heat-sink soluti
Package ContentsAccessories:
User's manual
I/O Shield
2 x SATA 6Gb/s cable(s)
1 x M.2 Screw Package

Questions about this item

What size M.2 SSD does the Prime X370-A board accept?

The M.2 slot supports type 2242, 2260, 2280 and 22110 drives in both SATA and PCIe 3.0 x4 modes when a Ryzen processor is installed.

Which PCIe slot should I use for a graphics card and how do I secure it?

Install the GPU in the top PCIe 3.0 x16 SafeSlot; it runs at x16 with Ryzen CPUs and x8 with 7th-gen A-series APUs, and the metal-reinforced latch clicks only when the card is fully seated.

How many DDR4 modules can I install and what is the total capacity limit?

Four 288-pin DDR4 slots accept up to 64 GB total; with Ryzen processors the board runs 3200 or 2933 MT/s overclocked and 2666 MT/s standard.

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