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PC parts / Motherboards

ASRock X870 Pro RS WiFi
CPU socket
AM5
Chipset
AMD X870
Form factor
ATX
M.2 slots
3

65 of 78 fields known.

At a glance

Ports

  • 2 USB-C USB4
  • 4 USB-A USB 3.2 Gen 1
  • 6 USB-A USB 2.0
  • HDMI 2.1
  • Ethernet (RJ45)
  • 2 3.5 mm audio
  • Optical S/PDIF
  • USB-C header
  • USB 3 header (19-pin)
  • 2 USB 2.0 header (9-pin)

All specs

SourceCalculated

General

Predecessor
Not available
Successor
Not available
Launch price (EU)
Not available
Markets
Not available
Colours
Not available
Segment
Mainstream2Reviewthefpsreview.com/2024/10/28/asrock-x870-pro-rs-wifi-motherboard-reviewRead 15 October 2026The review says ASRock markets the board as more general purpose and content creation, while the Steel Legend and Riptide are more gaming-centric. ASRock Pro boards are mainstream by the field rule.
Board revision
Not available

Platform

Chipset
AMD X8701Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026Specifications, page 2: AMD X870.
Supported processors
AMD Ryzen 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 Series1Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026Specifications, page 2: AMD Socket AM5 Ryzen 9000, 8000 and 7000 Series Processors. The manual refers to the maker's website for the CPU support list. Read on 2026-10-15.

Board

Front and side, drawn to scale.

Form factor
ATX1Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026Specifications, page 2: ATX Form Factor.
Board dimensions
Width244Height305mm(9.6 × 12 in)2Reviewthefpsreview.com/2024/10/28/asrock-x870-pro-rs-wifi-motherboard-reviewRead 15 October 2026Spec table: length 305 mm, width 244 mm, ATX.6Retailer pagetest-b2b.100mega.com/en/311835-asrock-x870-pro-rs-wifiRead 15 October 2026Board 305 x 244 mm, ATX.
Back-connect design
No1Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026The layout on pages 7 and 8 shows the usual front-side power, fan and USB connectors. The board is not a back-connect design.

Power delivery

CPU core (Vcore) power stages
142Reviewthefpsreview.com/2024/10/28/asrock-x870-pro-rs-wifi-motherboard-reviewRead 15 October 2026The first number of 14+2+1 is the Vcore rail.10Reviewsogi.com.tw/talks/%E8%8F%AF%E6%93%8EASRock-X870-PRO-RS-WIFI%E4%B8%BB%E6%A9%9F%E6%9D%BF-%E8%90%AC%E5%85%83%E5%85%A7%E5%84%AA%E8%B3%AA%E9%81%B8/6270854Read 15 October 202614+2+1 phases of Dr.MOS.
Extra slot power connector
No1Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026The connector list has no extra slot power connector. The manual never states that one is absent.

Memory

Max memory
256GB1Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026Specifications, page 2: max. capacity of system memory 256GB.
Max memory speed (overclocked)
8,000MT/s1Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026Supports DDR5 ECC/non-ECC, un-buffered memory up to 8000+(OC). The manual names no CPU family or module setup. It refers to the Memory Support List on the maker's website.
ECC memory
Yes1Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026The manual says DDR5 ECC/non-ECC, un-buffered memory with no non-ECC mode qualifier.
CUDIMM support
Not available

Expansion slots

Expansion slots
Physical slotElectrical lanesPCIe generationConnected toCount
PCIe x16165CPU1
PCIe x1644Chipset1
Full-length PCIe slots
2
Fastest PCIe x16 slot generation
5

Storage

M.2 storage slots
SlotPCIe generationPCIe lanesConnected toLongest driveTakes SATA drivesHeatsinkShares lanes with
M2_154CPUM.2 2280NoYesNot available
M2_244ChipsetM.2 2280NoYesPCIE2 is disabled when M2_2 is used
M2_334ChipsetM.2 2280YesYesM2_3 runs at PCIe 3.0 x2 when SATA3_1 or SATA3_2 is used
M.2 slots
3
PCIe 5.0 M.2 slots
1

Rear ports

Rear ports
TypeVersionCountMax link rate (Gbps)Thunderbolt or USB4Power out (W)DP Alt Mode
USB-CUSB4240USB415Yes
USB-AUSB 3.2 Gen 145Not availableNot availableNot available
USB-AUSB 2.060.48Not availableNot availableNot available
HDMIHDMI 2.11Not availableNot availableNot availableNot available
Ethernet (RJ45)Not available12.5Not availableNot availableNot available
3.5 mm audioNot available2Not availableNot availableNot availableNot available
Optical S/PDIFNot available1Not availableNot availableNot availableNot available
Rear USB ports
12
Rear USB-C ports
2
Fastest rear USB port
40Gbps
Thunderbolt
No

Internal connectors

Internal USB headers
HeaderMax data rate (Gbps)HeadersFront ports served
USB-C header2011
USB 3 header (19-pin)512
USB 2.0 header (9-pin)0.4823
Front USB-C header speed
20Gbps
Fan headers
71Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026Connector list: 2 x CPU fan connectors, 4 x chassis fan connectors and 1 x AIO pump fan connector, all 4-pin.2Reviewthefpsreview.com/2024/10/28/asrock-x870-pro-rs-wifi-motherboard-reviewRead 15 October 2026Seven 4-pin fan headers: two CPU and one AIO pump at the top, three chassis fan headers at the bottom right and a final header behind the I/O panel.
ARGB headers
31Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026Connector list: 3 x Addressable LED headers (up to 5V/3A, 15W in total).
RGB headers
11Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026Connector list: 1 x RGB LED header (up to 12V/3A, 36W in total).

Networking

Ethernet ports
1
Ethernet speed
2.5Gbps
Max Wi-Fi channel width
160MHz1Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026Specifications: supports 160MHz channel bandwidth with 6GHz frequency band.
Wi-Fi module
Not available

Audio

DAC chip
Not available

Features

BIOS flashback
Yes1Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026Specifications list 1 x BIOS Flashback Button on the rear panel. Section 2.13 calls it the only smart switch.
Clear CMOS button (rear)
No1Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026The rear panel list has no clear CMOS button. The layout lists a Clear CMOS jumper (CLRCMOS1).
Power button on the board
No1Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026Section 2.13 says the only smart switch is the BIOS Flashback button. The layout lists no power or reset button. The FPS Review also says there are no onboard power or reset buttons.2Reviewthefpsreview.com/2024/10/28/asrock-x870-pro-rs-wifi-motherboard-reviewRead 15 October 2026No onboard power or reset buttons.
Dual BIOS
No1Owner's manualdownload.asrock.com/Manual/X870%20Pro%20RS%20WiFi.pdfRead 15 October 2026The block diagram shows one Flash ROM. Dual BIOS is not stated.

Measured

VRM temperature under CPU load
35.5°C3Measurementthefpsreview.com/2024/10/28/asrock-x870-pro-rs-wifi-motherboard-reviewRead 15 October 2026Cinebench R23 for 20 minutes with HWInfo64. The CPU was an AMD Ryzen 7 7700X cooled by an AIO, at about 92 C at 100% load. The VRM temperature stayed between 34.0 and 35.5 C and the highest value is stored. The sensor is HWInfo64's reading of the board sensor. The CPU package power and ambient temperature are not stated.
Power draw idle
Not available
Power draw CPU stress
Not available

In the box

Warranty

Manufacturer warranty (source market)
3years6Retailer pagetest-b2b.100mega.com/en/311835-asrock-x870-pro-rs-wifiRead 15 October 2026Warranty 36 months. A distributor's listing, market not stated.7Retailer pagearvutitark.ee/en/pc-components/motherboards/plyta-glowna-asrock-x870-pro-rs-wifi-1402664Read 15 October 2026Warranty (months) 36. The market is Estonia.

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Sources

We read 12 sources for this motherboard. The numbers match the markers in the sheet.

  1. Read 15 October 2026Backs 37 fields
  2. Read 15 October 2026Backs 18 fields
  3. Read 15 October 2026Backs 1 field
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  10. Read 15 October 2026Backs 4 fields
  11. Read 15 October 2026Backs 1 field
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