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ATX motherboard in dark grey with silver heatsinks and RGB lighting accents

ASUS

ASUS ROG STRIX B550-F GAMING WIFI II ATX AMD motherboard

SKU CH-E816-B8NKG

ATX motherboard for AMD Ryzen 3000 and 5000 series CPUs with DDR4 memory up to 128 GB, PCIe 4.0, dual M.2 slots, WiFi 6E, 2.5 Gb LAN and HDMI 2.1 output

  • CPU Socket TypeAM4
  • CPU TypeSupports AMD Ryzen 5000 / 3000 Series Processors* Supports A
  • ChipsetAMD B550
  • Number of Memory Slots4x288pin (DDR4)
  • Memory StandardDDR4 5100(OC) / 4866(OC) / 4600(OC) / 4466(OC) / 4400(OC) /
  • Maximum Memory Supported128GB
  • Ready for AMD Ryzen 3000, 5000 and 4000 G-series processors with AM4 socket
  • PCIe 4.0-ready connectivity including dual M.2 slots, USB 3.2 Gen 2 Type-C, HDMI 2.1 and DisplayPort 1.2
  • Smooth networking via on-board WiFi 6E and Intel 2.5 Gb Ethernet with ASUS LANGuard
  • Robust power delivery from 12+2 teamed power stages, ProCool connector, alloy chokes and durable capacitors
  • Bundled 60-day AIDA64 Extreme subscription and intuitive UEFI BIOS dashboard for system tuning

AM4 Socket AMD B550 Motherboard

The ASUS ROG STRIX B550-F GAMING WIFI II is an ATX motherboard built for AMD Ryzen 3000 and 5000 series processors, plus 5000 and 4000 G-series chips. It uses the AMD B550 chipset and provides four 288-pin DDR4 slots supporting up to 128GB in dual-channel mode. On-board WiFi 6E and Intel 2.5 Gb Ethernet with LANGuard handle networking.

Straightforward ATX Install With BIOS Flashback

Standard ATX mounting points and a pre-installed I/O shield simplify the build. The ProCool power connector seats firmly and the 12+2 teamed power stages are clearly labelled. BIOS Flashback lets you update firmware without a CPU installed, which avoids the common issue of a new processor not posting on an older BIOS revision.

PCIe 4.0 From CPU And PCIe 3.0 From Chipset

The top PCIe x16 slot and the primary M.2 socket run at PCIe 4.0 x4 when a Ryzen 5000 or 3000 CPU is fitted. The second M.2 slot and the three PCIe x1 slots share PCIe 3.0 bandwidth from the chipset, so adding multiple devices can reduce available throughput. Six SATA 6Gb/s ports and USB 3.2 Gen 2 Type-C remain unaffected by this sharing.

Highlights

  • Ready for AMD Ryzen 3000, 5000 and 4000 G-series processors with AM4 socket
  • PCIe 4.0-ready connectivity including dual M.2 slots, USB 3.2 Gen 2 Type-C, HDMI 2.1 and DisplayPort 1.2
  • Smooth networking via on-board WiFi 6E and Intel 2.5 Gb Ethernet with ASUS LANGuard
  • Robust power delivery from 12+2 teamed power stages, ProCool connector, alloy chokes and durable capacitors
  • Bundled 60-day AIDA64 Extreme subscription and intuitive UEFI BIOS dashboard for system tuning

Specifications

BrandASUS
SeriesROG
ModelSTRIX B550-F GAMING WIFI II
CPU Socket TypeAM4
CPU TypeSupports AMD Ryzen 5000 / 3000 Series Processors*
Supports AMD Ryzen 5000 / 4000 G-Series Processors*
* Refer to www.asus.com for CPU support list.
ChipsetAMD B550
Number of Memory Slots4x288pin (DDR4)
Memory StandardDDR4 5100(OC) / 4866(OC) / 4600(OC) / 4466(OC) / 4400(OC) / 4266(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3600(OC) / 3466(OC) / 3200 / 3000 / 2800 / 2666 / 2400 / 2133 (AMD Ryzen 5000 and 4000 G-Series Processors) *
DDR4 4800(OC) / 4666(OC) / 4600(OC) / 4400(OC) / 4266(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3400(OC) / 3200 / 3000 / 2933 / 2800 / 2666 / 2400 / 2133 (AMD Ryzen 5000 and 3000 Series Processors) *
* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
Maximum Memory Supported128GB
Channel SupportedDual Channel
ECC SupportedECC Memory (ECC mode) support varies by CPU.
Buffer SupportedUn-buffered
PCI Express 4.0 x161 x PCI Express 4.0 x16
PCI Express 3.0 x161 x PCI Express 3.0 x16*
* Supports x4 mode.
* Share bandwidth with PCIe3.0 x1_1, PCIe3.0 x1_2, PCIe3.0 x1_3.
PCI Express x13 x PCIe 3.0 x1
Serial ATA (SATA)6 x SATA 6Gb/s
M.2AMD Ryzen 5000 and 3000 Series / 5000 and 4000 G-Series Desktop Processors:
M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x4 & SATA modes)
AMD B550 Chipset:
M.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes)*
* When the M.2_2 Slot is populated , SATA6G_5/6 ports will be disabled.
SATA RAID0/1/10
Onboard Video ChipsetSupported only by CPU with integrated graphic
Audio ChipsetROG SupremeFX High Definition Audio CODEC S1220A
Audio Channels7.1 Channels
LAN ChipsetIntel I225-V
Max LAN Speed2.5Gbps
Wireless LANWi-Fi 6E
802.11a/b/g/n/ac/ax
BluetoothBluetooth 5.2
Back I/O Ports2 x USB 3.2 Gen 2 ports (1 x Type-A + 1 x USB Type-C)
4 x USB 3.2 Gen 1 ports (4 x Type-A)
2 x USB 2.0 ports
1 x Wi-Fi Module
1 x DisplayPort
1 x HDMI port
1 x Intel I225-V 2.5G Ethernet
1 x Optical S/PDIF out
5 x Audio jacks
1 x BIOS FlashBack button
Onboard USB1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports
2 x USB 2.0 headers support additional 4 USB 2.0 ports
Other ConnectorsFan and cooling related
1 x 4-Pin AIO_Pump header
1 x 4-Pin CPU fan header
1 x 4-Pin CPU_OPT fan header
3 x 4-Pin Chassis fan headers
Miscellaneous
1 x Addressable Gen 2 header
2 x AURA RGB headers
1 x Clear CMOS header
1 x Front panel audio header (AAFP)
1 x 20-3 pin System Panel header with Chassis intrude function
1 x Thermal sensor header
1 x Thunderbolt header
Form FactorATX
LED LightingRGB
Dimensions (W x L)12.0" x 9.6"
Power Pin1 x 24-pin EATX Power connector(s)
1 x 8-pin ATX 12V Power connector(s)
1 x 4-pin ATX 12V Power connector(s)
Windows 11Supported
FeaturesSpecial Features:
ASUS Q-Design
- ASUS Q-DIMM
- ASUS Q-LED (DRAM [yellow],CPU [red], VGA [white], Boot Device [yellow green)
- ASUS Q-Slot
ASUS Thermal Solution
- M.2 heatsink
AURA Sync
- AURA RGB headers
- Addressable Gen 2 RGB headers
ASUS EZ DIY
- BIOS FlashBack button
- BIOS FlashBack LED
- Clear CMOS header
- ProCool
- Pre-mounted I/O shield
- SafeSlot
Software Features:
ROG Exclusive Software
- RAMCache III
- ROG CPU-Z
- GameFirst VI
- Sonic Studio III + Sonic Studio Virtual Mixer
- Sonic Radar III
- DTS Sound Unbound
- Overwolf
- Anti-virus software
ASUS Exclusive Software Fea
Package ContentsCables
1 x Addressable RGB extension cable
4 x SATA 6Gb/s cables
Miscellaneous
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
Installation Media
1 x Support DVD
Documentation
1 x User manual

Questions about this item

How do I confirm the board is running correctly after build?

Power on and watch for the ROG logo on the HDMI 2.1 or DisplayPort 1.2 output; the UEFI BIOS dashboard will appear if the CPU and DDR4 memory are detected.

What comes in the box and what must I add?

The motherboard includes the WiFi 6E antenna, I/O shield, SATA cables and a 60-day AIDA64 Extreme subscription; you must supply an AM4 Ryzen CPU, DDR4 modules, storage drives and an ATX power supply.

Which M.2 slot should I use for a 2280 drive?

Use the M.2_1 slot (Key M) which accepts 2242, 2260, 2280 and 22110 lengths and runs at PCIe 4.0 x4; the second slot is limited to PCIe 3.0 x4 from the B550 chipset.

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