Skip to content

ASRock · AM5 · B850

ASRock AMD B850 Pro RS WiFi

ATX · DDR5 · 4 DIMMs · 14-phase VRM · Wi-Fi 6E

Quality
65
VRM
54
Value
88
Amazon
$140
ASRock AMD B850 Pro RS WiFi
View ASRock AMD B850 Pro RS WiFi Gallery in high resolution
$140
Available Updated 3 days, 16 hours ago Prime FBA
Overall64.8
VRM54.0
Chipset78.0
Expansion / storage78.0
Connectivity74.0
Audio40.0
Quality / price87.9
$140 on Amazon Motherboard table Compare this motherboard

Build with this motherboardSelect a CPU first so the Builder can confirm the socket and unlock this board. Choose the CPU first

Written analysis

ASRock AMD B850 Pro RS WiFi at a glance

The ASRock AMD B850 Pro RS WiFi uses the ATX form factor, AM5 socket, and B850 chipset. This is a balanced mainstream platform: enough expansion and connectivity for a performance PC without paying only for flagship extras.

Memory support is DDR5 across 4 DIMM slots, with up to 256 GB and rated overclocked speeds up to 8000 MT/s. ECC modules are accepted, subject to CPU support. XMP / EXPO memory-profile support is recorded for easier tuning.

Best fit: a performance gaming and productivity PC that needs a balanced board without workstation-class excess.

Power delivery

The calculated VRM score is 54.0, placing the power delivery in the mid-range class. The board lists 14 CPU power phases, 80 A power stages in a 14+2+1 layout. CPU power input is listed as 2. It is a sensible match for mainstream processors, with conservative tuning on higher-power chips.

Expansion and storage

The expansion and storage score is 78.0: well equipped . The platform supports PCIe 5.0. Physical expansion includes 2 ×16 slots.

On-board storage consists of 4 M.2 slots and 4 SATA ports. Supported M.2 lengths are listed as 2230, 2242, 2260, 2280. That is enough NVMe capacity for a multi-drive gaming or creator setup without immediately relying on an add-in card.

Connectivity and rear I/O

The connectivity score is 74.0, rated strong . Wireless networking is Wi-Fi 6E ; wired networking is 2.5 Gigabit LAN 10/100/1000/2500 Mb/s at up to 2500 Mbps. Bluetooth 5.2 is included. The recorded USB provision is 12 rear connections and 9 front-panel connections. The specification sheet below separates every USB speed and connector type.

Display connectivity includes HDMI 2.1, USB-C DisplayPort. These motherboard outputs require a processor with integrated graphics.

Audio

The audio score is 40.0. This is a standard onboard solution using Realtek ALC897 Audio Codec. It covers normal gaming and communication; demanding headphones or production work still benefit from an external interface. The rear panel has 3 analogue jacks.

Buying verdict

Overall quality is 64.80, a mainstream result. The essential platform features are covered, while premium I/O and tuning extras are more selective.

At the recorded Amazon price, the quality-to-price score is 87.9—an excellent value relative to the other boards in the catalog.

Board data

Full specifications

Platform, expansion, storage, rear I/O, internal headers, networking, audio, and board controls in one sheet.

General

Manufacturer
ASRock
Motherboard
ASRock AMD B850 Pro RS WiFi
Chipset / socket
B850 / AM5
Form factor
ATX
Launch price
—
Amazon price
$140
Availability
In stock
Price updated
3 days, 16 hours ago

VRM

CPU phases
14 (80 A)
Power design
14+2+1
EPS connector
2

Memory

Type / slots
DDR5 / 4 DIMMs
Max capacity / OC
256 GB / 8000 MT/s
Per DIMM
64 GB
XMP / EXPO
Yes
ECC
Modules supported

PCIe

Supported version
PCIe 5.0
x16 physical
2
x16 Gen 5
1
x16 Gen 4
1

Storage

M.2 slots
4
M.2 lengths
2230, 2242, 2260, 2280
SATA ports
4

Display outputs

HDMI
Yes · 2.1 · 4K 120Hz
DisplayPort
No
USB-C DisplayPort
Yes · 1.4 · 4K 60Hz

USB

Rear USB 2.0
6
Rear USB 3.2 Gen 1 Type-A 5 Gbps
4
Rear USB 3.2 Gen 1 Type-C 5 Gbps
1
Rear USB 3.2 Gen 2 Type-C 10 Gbps
1
Front USB 2.0
4
Front USB 3.2 Gen 1 Type-A 5 Gbps
4
Front USB 3.2 Gen 2×2 Type-C 20 Gbps
1
Header USB 2.0
4
Header USB 3.2 Gen 1 Type-A 5 Gbps
4
Header USB 3.2 Gen 2×2 Type-C 20 Gbps
1

Networking

Ethernet
2.5 Gigabit LAN 10/100/1000/2500 Mb/s
LAN ports
1
LAN speed
2500 Mbps
Wi-Fi
Wi-Fi 6E
Bands
2.4GHz, 5GHz, 6GHz
Antenna connectors
2
Bluetooth
5.2

Audio

Chipset
Realtek ALC897 Audio Codec
Analog jacks
3
Gold-plated jacks
No
Optical S/PDIF
No
Spatial audio
Rear output

Buttons

BIOS flashback
Yes
Clear CMOS
No
Q-Flash Plus
No
Smart button
No
Onboard start / reset
No

Additional information

Memory notes
Supports un-buffered memory and EXTended Profiles for Overclocking (EXPO) memory modules.
Display notes
Integrated AMD RDNA™ graphics support may vary by CPU. The HDMI port is TMDS/FRL 8G Compatible, supports HDR, and HDCP 2.3. The USB Type-C port supports DP 1.4 HBR3, and its DP-alt mode supports DP1.4a.
Expansion notes
PCIE1 speed depends on the installed CPU: it runs at Gen5x16 with 9000/7000 series, Gen4x8 with 8000 (Phoenix 1) series, and Gen4x4 with 8000 (Phoenix 2) series processors. The PCIE2 slot (supports x4 mode) is disabled if the M2_3 socket is occupied. The PCIE1 slot features 15μ Gold Contact.
M2_1
PCIe 5.0 4 · 2280 · CPU — Will run at Gen5x4 with 9000 and 7000 series processors and Gen4x4 with 8000 (Phoenix 1 and Phoenix 2) series processors.
M2_2
PCIe 4.0 4 · 2280 · CPU — 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.
M2_3
PCIe 4.0 4 · 2230, 2242, 2260, 2280 · Chipset — If M2_3 is occupied, PCIE2 will be disabled.
M2_4
PCIe 3.0 4 · 2280 · Chipset — If SATA3_1 or SATA3_2 is occupied, M2_4 will downgrade to Gen3x2 mode.
Storage notes
Supports NVMe SSD as boot disks. M2_1 is the first priority for M.2 installation. 2 SATA ports are provided by the Chipset and 2 by an ASMedia ASM1061 controller.
USB notes
All USB ports support ESD Protection. One rear USB 3.2 Gen1 Type-C port supports DP-alt mode (DP1.4a).
Audio notes
7.1 CH HD Audio, Nahimic Audio
Networking notes
Supports IEEE 802.11a/b/g/n/ac/ax/axe. Supports Dual-Band 2x2 with extended 6GHz band support. 2 antennas to support 2 (Transmit) x 2 (Receive) diversity technology. Supports MU-MIMO. The Wi-Fi 6E module is supported by Microsoft Windows® 11 only. A 6GHz compatible router is required for 6E functionality.
Fan / RGB headers
2 CPU · — OPT · 1 AIO · 4 chassis · 3 ARGB · 1 RGB
Other headers
Front audio · System panel · TPM
Dimensions
30.5 cm x 24.4 cm

Extracted notes sit here. Official manufacturer copy is at the bottom of the page.

Amazon

Price history

Nearby quality

Similar motherboards

Boards on AM5 close to ASRock AMD B850 Pro RS WiFi on overall quality. Open the motherboard table to sort, filter, and compare side by side.

Compare these in the motherboard table

VRM fit

VRM-appropriate CPUs

AM5 processors whose TDP sits in this board’s VRM window. Socket match is required; chipset extras still matter on sTR5. This is a power-delivery filter, not a ranked CPU guide.

Open AM5 CPUs in the CPU table

Discussion

Comments on ASRock AMD B850 Pro RS WiFi

No comments yet.

Vendor copy

Official manufacturer data

Raw manufacturer text kept for reference. Structured specs above are extracted from this copy and are the source for scores and tables.

Memory

Dual Channel DDR5 Memory Technology
- 4 x DDR5 DIMM Slots
- Supports DDR5 ECC/non-ECC, un-buffered memory up to 8000+(OC)
- Max. capacity of system memory: 256GB
- Supports Extreme Memory Profile (XMP) and EXTended Profiles for Overclocking (EXPO) memory modules

Graphics

Integrated AMD RDNA™ graphics (Actual support may vary by CPU)
- 1 x HDMI 2.1 TMDS/FRL 8G Compatible, supports HDR, HDCP 2.3 and max. resolution up to 4K 120Hz
- 1 x USB 3.2 Gen1 Type-C, supports DP 1.4 HBR3 and max. resolution up to 4K 60Hz (DP-alt mode supports DP1.4a)

Expansion slots

CPU:
- 1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode*
Chipset:
- 1 x PCIe 4.0 x16 Slot (PCIE2), supports x4 mode*
- 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module
- 15μ Gold Contact in VGA PCIe Slot (PCIE1)

* 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

Storage

CPU:
- 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen5x4 (128 Gb/s) mode*
- 1 x Hyper M.2 Socket (M2_2, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode*
Chipset:
- 1 x Hyper M.2 Socket (M2_3, Key M), supports type 2230/2242/2260/2280 PCIe Gen4x4 (64 Gb/s) mode*
- 1 x Ultra M.2 Socket (M2_4, Key M), supports type 2280 PCIe Gen3x4 (32 Gb/s) mode*
- 2 x SATA3 6.0 Gb/s Connectors
ASMedia ASM1061:
- 2 x SATA3 6.0 Gb/s Connectors

* 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_2 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.
If M2_3 is occupied, PCIE2 will be disabled.
If SATA3_1 or SATA3_2 is occupied, M2_4 will downgrade to Gen3x2 mode.

USB

CPU:
- 1 x USB 3.2 Gen2 Type-C (Rear)
- 1 x USB 3.2 Gen1 Type-C (Rear)
- 2 x USB 3.2 Gen1 Type-A (Rear (USB32_1 and USB32_2))
Chipset:
- 1 x USB 3.2 Gen2x2 Type-C (Front)
- 6 x USB 3.2 Gen1 Type-A (2 Rear (USB32_3 and USB32_4), 4 Front)
- 10 x USB 2.0 (6 Rear, 4 Front)

* All USB ports support ESD Protection

Internal I/O

1 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)***
- 4 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
- 2 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 Gen2x2 Header (20 Gb/s)

* 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, CHA_FAN1~4 and AIO_PUMP support the fan power up to 3A (36W).
CPU_FAN2, CHA_FAN1~4 and AIO_PUMP can auto detect if 3-pin or 4-pin fan is in use.

Rear I/O

2 x Antenna Ports
- 1 x HDMI Port
- 1 x USB 3.2 Gen2 Type-C Port (10 Gb/s)
- 1 x USB 3.2 Gen1 Type-C Port (DP-alt mode supports DP1.4a)
- 4 x USB 3.2 Gen1 Type-A Ports
- 6 x USB 2.0 Ports
- 1 x RJ-45 LAN Port
- 1 x BIOS Flashback Button
- HD Audio Jacks: Line in / Front Speaker / Microphone

Wireless

802.11axe Wi-Fi 6E Module
- Supports IEEE 802.11a/b/g/n/ac/ax/axe
- Supports Dual-Band 2x2 with extended 6GHz band* support
- 2 antennas to support 2 (Transmit) x 2 (Receive) diversity technology
- Supports Bluetooth 5.2
- Supports MU-MIMO

*The Wi-Fi 6E module is supported by Microsoft Windows® 11 only. There is no driver available for Windows® 10. The availability of the 6GHz band will depend on the different regulation status of each country and region. It will be activated (for supported countries) through Windows® Update and software updates once available.
A 6GHz compatible router is required for 6E functionality.

Audio

7.1 CH HD Audio (Realtek ALC897 Audio Codec)
- Nahimic Audio

Special features

Software
- ASRock Motherboard Utility (A-Tuning)
- ASRock Dragon 2.5G LAN Software
- ASRock Polychrome SYNC*
UEFI
- ASRock EZ Mode
- ASRock Full HD UEFI
- ASRock Auto Driver Installer
- ASRock Instant Flash

*These utilities can be downloaded from ASRock Live Update & APP Shop.

Privacy controls

Choose whether optional analytics may run. Necessary storage remains active because it supports security, login, requested preferences, and this choice.

Necessary Security, sessions, forms, and preferences you request.
Always active