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PC parts / Motherboards

ASUS ROG STRIX B550-F GAMING WIFI II
CPU socket
AM4
Chipset
AMD B550
Form factor
ATX
M.2 slots
2

57 of 78 fields known.

At a glance

Ports

  • USB-C USB 3.2 Gen 2
  • USB-A USB 3.2 Gen 2
  • 4 USB-A USB 3.2 Gen 1
  • 2 USB-A USB 2.0
  • DisplayPort 1.2
  • HDMI 2.1
  • Ethernet (RJ45)
  • 5 3.5 mm audio
  • Optical S/PDIF
  • USB 3 header (19-pin)
  • 2 USB 2.0 header (9-pin)

All specs

SourceCalculated

General

Announced
Not available
Predecessor
Not available
Successor
Not available
Launch price (US)
Not available
Launch price (EU)
Not available
Markets
Not available
Colours
Not available
Segment
Gaming2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-modelRead 15 October 2026ROG Strix is ASUS's gaming board line, and the page is listed under Gaming Motherboards.
Board revision
Not available

Platform

Chipset
AMD B5501Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026AMD B550 chipset.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Specifications summary: AMD B550 Chipset.

Board

Front and side, drawn to scale.

Board dimensions
Width244Height305mm(9.6 × 12 in)1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026Form factor: ATX, 30.5cm x 24.4cm. The 244 mm side is the width, as for ATX.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 202612 inch x 9.6 inch (30.5 cm x 24.4 cm). The 244 mm side is the width.
Back-connect design
No3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026The connector layout in chapter 1 shows the usual front-side power, fan and USB connectors. The board is not a back-connect design.
RGB lighting on the board
Yes2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-modelRead 15 October 2026The spec overview lists I/O Zone Aura lighting. The Aura text says the board has built-in Aura technology with full RGB control for embedded RGB LEDs and for strips on the onboard RGB headers.

Power delivery

Power stage layout
12+22Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-modelRead 15 October 2026Teamed power stages: 12+2 power stages combine high-side and low-side MOSFETs and drivers into a single package, with ASUS DIGI+ power control. No amp rating or controller part is named.
CPU core (Vcore) power stages
122Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-modelRead 15 October 2026The first number of 12+2 is the Vcore rail. The page calls the stages teamed. They are counted as stages.
Vcore power stage rating
Not available
VRM controller
Not available
Extra slot power connector
No1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026The internal connector list has no extra slot power connector.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026The internal connector list has no extra slot power connector.

Memory

Max memory
128GB1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026Max. 128GB.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Max. 128GB.
Max memory speed (overclocked)
5,100MT/s1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026The list for Ryzen 5000 and 3000 Series runs from 2133 to 4800(O.C.) MHz. The list for Ryzen 5000 and 4000 G-Series runs from 2133 to 5100(O.C) MHz. The highest overclocked speed is stored, which is the ROG overview's headline DDR4 5100MHz+. No module setup is named. Ryzen 5000 is the newest family.2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-modelRead 15 October 2026The spec overview lists DDR4 5100MHz+ with dual channel.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Specifications summary: Ryzen 5000 and 3000 Series up to 4800(O.C.) MHz, and Ryzen 5000 and 4000 G-Series up to 5100(O.C) MHz. The higher figure is stored.
ECC memory
Yes1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026ECC memory (ECC mode) support varies by CPU. The maker lists no non-ECC mode qualifier for the board, so it counts as ECC.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026ECC memory (ECC mode) support varies by CPU.
CUDIMM support
Not available

Expansion slots

Full-length PCIe slots
2
Fastest PCIe x16 slot generation
4

Storage

M.2 storage slots
SlotPCIe generationPCIe lanesConnected toLongest driveTakes SATA drivesHeatsinkShares lanes with
M.2_144CPUM.2 22110YesYesNot available
M.2_234ChipsetM.2 22110YesYesSATA6G_5 and SATA6G_6 are disabled when M.2_2 is used
M.2 slots
2
PCIe 5.0 M.2 slots
0

Rear ports

Rear ports
TypeVersionCountMax link rate (Gbps)
USB-CUSB 3.2 Gen 2110
USB-AUSB 3.2 Gen 2110
USB-AUSB 3.2 Gen 145
USB-AUSB 2.020.48
DisplayPortDisplayPort 1.21Not available
HDMIHDMI 2.11Not available
Ethernet (RJ45)Not available12.5
3.5 mm audioNot available5Not available
Optical S/PDIFNot available1Not available
Rear USB ports
8
Rear USB-C ports
1
Fastest rear USB port
10Gbps
Thunderbolt
Not available

Internal connectors

Front USB-C header speed
Not available
Fan headers
61Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 20261 x 4-pin AIO_Pump header, 1 x 4-pin CPU fan header, 1 x 4-pin CPU_OPT fan header and 3 x 4-pin chassis fan headers.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026The fan header table lists CPU_FAN, CPU_OPT, CHA_FAN1 to 3 and AIO_PUMP, each rated 1 A (12 W).
ARGB headers
11Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 20261 x Addressable Gen 2 header (3-pin).3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 20261 x Addressable Gen 2 header.
RGB headers
21Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 20262 x AURA RGB headers (4-pin).3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 20262 x AURA RGB headers.

Networking

Ethernet controllers
Intel I2251Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 20261 x Intel I225-V 2.5Gb Ethernet with ASUS LANGuard. The suffix V is left out.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 20261 x Intel I225-V 2.5Gb Ethernet.6Retailer pageparadigit.ie/asus-rog-strix-b550-f-gaming-wifi-ii-amd-b550-socket-am4-atx/21175029/productRead 15 October 2026LAN controller: Intel I225-V.
Ethernet ports
1
Ethernet speed
2.5Gbps
Max Wi-Fi channel width
Not available
Wi-Fi module
Not available

Audio

DAC chip
Not available

Features

Power button on the board
No1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026The internal connector and special feature lists have no onboard power or reset button.
Tool-free features
Not available

Measured

We could not find any of these 3 fields. Show them
VRM temperature under CPU load
Not available
Power draw idle
Not available
Power draw CPU stress
Not available

In the box

In the box
1 x Addressable RGB extension cable, 4 x SATA 6Gb/s cables, 1 x ASUS Wi-Fi moving antennas, 1 x Cable ties pack, 1 x M.2 Rubber Package, 1 x M.2 SSD screw package, 1 x ROG key chain, 1 x ROG Strix stickers, 1 x ROG Strix thank you card, 1 x Support DVD, 1 x User manual1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026Accessories list as published.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Package contents, chapter 1.

Warranty

Manufacturer warranty (source market)
3years5Retailer pagestartech.com.bd/asus-rog-strix-b550-f-gaming-wifi-ii-motherboardRead 15 October 2026Warranty information: 3 years manufacturing warranty. The market is Bangladesh.

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Sources

We read 10 sources for this motherboard. The numbers match the markers in the sheet.

  1. Read 15 October 2026Backs 34 fields
  2. Read 15 October 2026Backs 10 fields
  3. Read 15 October 2026Backs 36 fields
  4. Read 15 October 2026Backs 1 field
  5. Read 15 October 2026Backs 3 fields
  6. Read 15 October 2026Backs 4 fields
  7. Read 15 October 2026Backs 2 fields
  8. Read 15 October 2026Backs 2 fields
  9. Read 15 October 2026Backs 1 field
  10. Read 15 October 2026Backs 1 field

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