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Green micro-ATX board with silver heatsinks and rear I/O shield

ASRock

ASRock B850M Pro RS WiFi AMD motherboard

SKU CH-7E64-S6ZJ7 MPN B850M Pro RS WiFi

Micro-ATX AM5 board with 8+2+1 power phases, four DDR5 slots up to 8000+, PCIe 5.0 x16, Gen5 M.2, 2280 M.2, four SATA3, Realtek 7.1 audio, Dragon RTL8125BG LAN and Wi-Fi

  • CPU Socket TypeAM5
  • CPU TypeRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
  • ChipsetAMD B850
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardUp to 8000+(OC)
  • Maximum Memory Supported256GB

Option B850M Pro RS WiFi

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  • Supports Ryzen 7000, 8000 and 9000 series processors on AM5 socket
  • 8+2+1 phase power design with Dr.MOS for stable CPU delivery
  • Four DDR5 slots up to 8000 MT/s and 256 GB capacity
  • One PCIe 5.0 x16 slot plus one PCIe 4.0 x4 slot
  • Realtek ALC897 7.1 audio with Nahimic and Dragon RTL8125BG LAN

Socket AM5 micro-ATX board

The ASRock B850M Pro RS WiFi is a micro-ATX motherboard built for AMD Socket AM5 processors. It accepts Ryzen 7000, 8000 and 9000 series CPUs and uses the AMD B850 chipset. The board targets builders who want a compact platform with modern connectivity and solid power delivery.

One PCIe 5.0 x16 slot and a Gen5 M.2

The primary expansion slot runs at PCIe 5.0 x16 with Ryzen 9000 and 7000 series chips, dropping to Gen4 x8 or x4 with 8000 series APUs. The top M.2 socket connects through the CPU at PCIe Gen5 x4 (128 Gb/s) for the fastest NVMe drives. A second slot from the chipset provides PCIe Gen4 x4 (64 Gb/s), and a third chipset M.2 adds more high-speed storage. Four SATA 6 Gb/s ports and RAID 0, 1, 10 support round out the storage options.

Suits compact gaming or workstation builds

This board fits users who need a smaller case footprint without sacrificing high-speed I/O or memory capacity up to 256 GB of DDR5. The 8+2+1 phase Dr.MOS VRM and 6-layer PCB support stable overclocking, while rear HDMI and DisplayPort serve APU graphics. Builders requiring more than two full-size PCIe slots or 10 GbE LAN should look at full-size ATX alternatives.

Fordele

  • Supports Ryzen 7000, 8000 and 9000 series processors on AM5 socket
  • 8+2+1 phase power design with Dr.MOS for stable CPU delivery
  • Four DDR5 slots up to 8000 MT/s and 256 GB capacity
  • One PCIe 5.0 x16 slot plus one PCIe 4.0 x4 slot
  • Realtek ALC897 7.1 audio with Nahimic and Dragon RTL8125BG LAN

Specifikationer

BrandASRock
ModelB850M PRO RS WIFI
CPU Socket TypeAM5
CPU TypeRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
ChipsetAMD B850
Number of Memory Slots4x288pin (DDR5)
Memory StandardUp to 8000+(OC)
Maximum Memory Supported256GB
Channel SupportedDual Channel
Memory Performance ProfileAMD EXPO / Intel XMP 3.0
ECC SupportedYes
Buffer SupportedUn-buffered
PCI Express 5.0 x161 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode*
* PCIE1 will run at Gen5x16 with 9000 and 7000 series processors, Gen4x8 with 8000 (Phoenix 1) series processors and Gen4x4 with 8000 (Phoenix 2) series processors.
* If M2_3 is occupied, PCIE2 will be disabled.
* Supports NVMe SSD as boot disks
- 15µ Gold Contact in VGA PCIe Slot (PCIE1)
PCI Express 4.0 x161 x PCIe 4.0 x4 Slot (PCIE2), supports x4 mode*
Serial ATA (SATA)4 x SATA 6Gb/s
M.2CPU:
- 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen5x4 (128 Gb/s) mode*
Chipset:
- 1 x Hyper M.2 Socket (M2_2, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode*
- 1 x Hyper M.2 Socket (M2_3, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode*
* Supports NVMe SSD as boot disks
* M2_1 is the first priority for M.2 installation.
* M2_1 will run at Gen5x4 with 9000 and 7000 series processors and Gen4x4 with 8000 (Phoenix 1 and Phoenix 2) series processors.
* M2_3 will run at Gen4x4 with 9000 and 7000 series processors, Gen4x4 with 8000 (Phoenix 1) series proc
SATA RAIDSupports RAID 0, RAID 1 and RAID 10 for SATA storage devices
Supports RAID 0, RAID 1 and RAID 10 for M.2 NVMe storage devices*
* Requires additional M.2 NVMe expansion cards to support RAID 10
Audio ChipsetRealtek ALC897
Audio Channels7.1 Channels
LAN ChipsetDragon RTL8125BG
Max LAN Speed2.5Gbps
Wireless LANWi-Fi 802.11 ax
BluetoothBluetooth 5.2
Back I/O Ports2 x Antenna Ports
1 x HDMI Port
1 x DisplayPort 1.4
1 x USB 3.2 Gen2 Type-A Port (10 Gb/s)
1 x USB 3.2 Gen2 Type-C Port
2 x USB 3.2 Gen1 Ports
4 x USB 2.0 Ports
1 x RJ-45 LAN Port
1 x BIOS Flashback Button
HD Audio Jacks: Line in / Front Speaker / Microphone
Onboard USB2 x USB 2.0 Headers (Support 4 USB 2.0 ports)
2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports)
1 x Front Panel Type C USB 3.2 Gen1 Header
Other Connectors1 x SPI TPM Header
1 x Power LED and Speaker Header
1 x RGB LED Header*
3 x Addressable LED Headers**
2 x CPU Fan Connectors (4-pin) (Smart Fan Speed Control)***
3 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)***
1 x Front Panel Audio Connector
* Supports in total up to 12V/3A, 36W LED Strip
** Support in total up to 5V/3A, 15W LED Strip
*** CPU_FAN1 supports the fan power up to 1A (12W).
*** CPU_FAN2 and CHA_FAN1~3 support the fan power up to 3A (36W).
*** CPU_FAN2 and CHA_FAN1~3 can auto detect if 3-pin or 4-pin fan is in use.
Form FactorMicro ATX
Dimensions (W x L)9.6" x 9.6"
Power Pin1 x 24 pin ATX Power Connector
1 x 8 pin 12V Power Connector (Hi-Density Power Connector)
1 x 4 pin 12V Power Connector (Hi-Density Power Connector)
BIOS Feature256Mb AMI UEFI Legal BIOS with GUI support
SoftwareSoftware
- ASRock Motherboard Utility (A-Tuning)
- ASRock Dragon 2.5G LAN Software
- ASRock Polychrome SYNC
* These utilities can be downloaded from ASRock Live Update & APP Shop.
UEFI
- ASRock EZ Mode
- ASRock Full HD UEFI
- ASRock Auto Driver Installer
- ASRock Instant Flash
Windows 11Windows OS 10 64-bit / 11 64-bit
FeaturesSuperb Productivity
- PCIe Gen5 (Graphics, M.2)
- Dual Channel DDR5
Rock-Solid Durability
- 8+2+1 Power Phase, Dr.MOS for VCore+SOC+MISC
- Pre-Installed I/O Shield
Ultrafast Connectivity
- 2.5G LAN, 802.11axe Wi-Fi 6E Module
EZ Update
- BIOS Flashback Button
- ASRock Auto Driver Installer
EZ Troubleshooter
- ASRock Post Status Checker
Package Contents2 x SATA Data Cables
2 x ASRock WiFi 2.4/5/6 GHz Antennas
Forsendelsesvægt1.36 kg
Pakkestørrelse292 × 254 × 64 mm

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Spørgsmål om denne vare

How does the PCIe 5.0 x16 slot perform with Ryzen 9000 series CPUs?

The PCIe 5.0 x16 slot runs at Gen5 x16 with Ryzen 9000 series processors, delivering full bandwidth for compatible graphics cards.

What M.2 speeds does the Blazing M.2 socket provide?

The CPU-connected Blazing M.2 socket supports PCIe Gen5 x4 mode, reaching up to 128 Gb/s with compatible NVMe drives.

What DDR5 memory speeds and capacity does this board support?

Four DDR5 slots support dual-channel operation up to 256 GB total, with AMD EXPO and Intel XMP 3.0 profiles up to 8000+ MT/s when overclocked.

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