We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
ATX motherboard, dark PCB with silver heatsinks and rear I/O shield

ASRock

ASRock B850 Rock WiFi 7 AMD motherboard

SKU CH-79K1-4ARCH MPN B850 Rock WiFi 7

ATX board for AM5 Ryzen CPUs with DDR5 up to 256 GB, PCIe 5.0 x16, Gen5 M.2, WiFi 7 and 7.1 audio

  • CPU Socket TypeAM5
  • CPU TypeRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
  • ChipsetAMD B850
  • Number of Memory Slots4x288pin (DDR5)
  • Maximum Memory Supported256GB
  • Channel SupportedDual Channel

Option B850 Rock WiFi 7

Struck-through versions exist but are not stocked here.

  • Ready for Ryzen 9000, 8000 and 7000 series CPUs
  • 9+2+1 Dr.MOS power phases for stable delivery
  • Four DDR5 slots support up to 256 GB dual-channel
  • Blazing M.2 socket runs at PCIe 5.0 x4 128 Gb/s
  • Realtek ALC897 codec provides 7.1-channel HD audio

AM5 Socket for Ryzen 7000, 8000, 9000

The ASRock B850 Rock WiFi 7 is an ATX motherboard built on the AMD B850 chipset. It supports AM5 socket processors across the Ryzen 7000, 8000 and 9000 series. The board provides four DDR5 DIMM slots with a maximum capacity of 256 GB and dual-channel operation. It includes WiFi 7 connectivity and a 9+2+1 Dr.MOS power phase design.

PCIe 5.0 x16 Slot Decides GPU Bandwidth

Builders pairing a Ryzen 9000 or 7000 series CPU gain a full Gen5 x16 link on the primary slot. With Ryzen 8000 Phoenix 1 the same slot runs at Gen4 x8, and with Phoenix 2 at Gen4 x4. A second PCIe 4.0 x16 slot wired x4 and two PCIe x4 slots handle add-in cards. This board suits high-bandwidth GPU needs; those using Phoenix 2 CPUs should consider a different chipset.

Blazing M.2 Gen5 x4 for Primary NVMe

The CPU-attached M.2 socket (M2_1) delivers PCIe 5.0 x4 speeds up to 128 Gb/s for a 2280 NVMe drive. A chipset-attached Hyper M.2 (M2_2) adds a Gen4 x4 slot at 64 Gb/s. Four SATA 6 Gb/s ports support RAID 0, 1, 10. The single Gen5 M.2 slot is the decisive storage spec; systems needing multiple Gen5 drives require a different platform.

Highlights

  • Ready for Ryzen 9000, 8000 and 7000 series CPUs
  • 9+2+1 Dr.MOS power phases for stable delivery
  • Four DDR5 slots support up to 256 GB dual-channel
  • Blazing M.2 socket runs at PCIe 5.0 x4 128 Gb/s
  • Realtek ALC897 codec provides 7.1-channel HD audio

Specifications

BrandAMD
ModelB850 Rock WiFi 7
CPU Socket TypeAM5
CPU TypeRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
ChipsetAMD B850
Number of Memory Slots4x288pin (DDR5)
Maximum Memory Supported256GB
Channel SupportedDual Channel
Memory Performance ProfileIntel XMP/ AMD EXPO
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.
PCI Express 4.0 x161 x PCIe 4.0 x16 Slot (PCIE4), supports x4 mode
PCIE4 will run at Gen4x4 with 9000 and 7000 series processors, Gen4x4 with 8000 (Phoenix 1) series processors and Gen4x2 with 8000 (Phoenix 2) series processors.
PCI Express x42 x PCI Express x4
Other Slots1 x USB 3.2 Gen1 Type-C, 4 x USB 3.2 Gen1 Type-A, 4 x USB 2.0
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
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.
SATA RAID- Supports 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
Onboard Video ChipsetAMD RDNA Integrated
Audio ChipsetRealtek ALC897
Audio Channels7.1 Channels
LAN ChipsetDragon RTL8125BG
Max LAN Speed2.5Gbps
Wireless LANWiFi IEEE 802.11 a / b / g / n / ac / ax / be
BluetoothBluetooth 5.4
Back I/O Ports- 2 x Antenna Ports
- 1 x HDMI Port
- 1 x USB 3.2 Gen2 Type-A Port (10 Gb/s)
- 1 x USB 3.2 Gen2 Type-C Port (10 Gb/s)
- 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 3.2 Gen1 + 2 x USB 2.0
Other Connectors- 1 x SPI TPM Header
- 1 x Power LED and Speaker Header
- 1 x RGB LED Header (Supports in total up to 12V/3A, 36W LED Strip)
- 3 x Addressable LED Headers (Support in total up to 5V/3A, 15W LED Strip)
- 2 x CPU Fan Connectors (4-pin) (Smart Fan Speed Control)
- 3 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)
- 1 x AIO Pump Fan Connector (4-pin) (Smart Fan Speed Control)
- 1 x 24 pin ATX Power Connector
- 2 x 8 pin 12V Power Connectors (Hi-Density Power Connector)
- 1 x Front Panel Audio Connector
- 1 x Front Panel Type C USB 3.2 Gen1 Header
CPU_FAN1 supports the fan powe
Form FactorATX
LED LightingRGB
Dimensions (W x L)12.0" x 9.6"
Power Pin24 Pin
BIOS Feature512Mb AMI UEFI Legal BIOS with GUI support
Software- 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.
Windows 11Supported
Package Contents- 2 x SATA Data Cables
- 2 x ASRock WiFi 2.4/5/6 GHz Antennas
Shipping weight1.68 kg
Package size356 × 279 × 76 mm

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Should I pick the B850 Rock WiFi 7 or a different B850 model for a Ryzen 9000 build?

The B850 Rock WiFi 7 runs its primary PCIe 5.0 x16 slot at full Gen5x16 with Ryzen 9000 CPUs, while the second x16 slot operates at Gen4x4 and the CPU-linked M.2 reaches 128 Gb/s.

What does the 128 Gb/s Blazing M.2 rating mean for my NVMe drive in daily use?

That figure is the PCIe Gen5x4 ceiling; a compatible drive will hit its rated sequential speeds, while random I/O and thermal limits will determine real-world responsiveness.

How does the AM5 socket affect which Ryzen 7000, 8000 and 9000 chips I can install?

The board accepts all three series; 7000 and 9000 unlock Gen5x16 on the top slot and Gen4x4 on the second, whereas 8000 Phoenix 1 drops the top slot to Gen4x8 and Phoenix 2 to Gen4x4.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.