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Green Micro-ATX board with grey heatsinks and yellow accents

ASUS

ASUS TUF GAMING B550M-PLU AMD motherboard

SKU CH-3YJF-ZY6W2 MPN TUF GAMING B550M-PLU

Micro-ATX AM4 board with B550 chipset, dual M.2 slots, 2.5 Gb LAN and 7.1 audio for Ryzen 5000 builds

  • CPU Socket TypeAM4
  • CPU TypeBIOS update might require for AMD Zen 3 Ryzen 5000 series CP
  • ChipsetAMD B550
  • Number of Memory Slots4x288pin (DDR4)
  • Memory Standard3rd Gen AMD Ryzen Processors DDR4 4600(O.C)/ 4400(O.C)/ 4266
  • Maximum Memory Supported128GB
  • Supports up to 128GB DDR4 memory via four 288-pin slots
  • PCIe 4.0 x16 slot for high-bandwidth graphics with 3rd Gen Ryzen CPUs
  • Dual M.2 slots including one PCIe 4.0 x4 and one PCIe 3.0 x4 for fast storage
  • 5Gbps LAN with Realtek RTL8125B controller for low-latency networking
  • 1-channel audio with Realtek ALC S1200A codec and AI noise-cancelling microphone support

AM4 Socket Board for Ryzen Builders

This Micro ATX motherboard uses the AMD B550 chipset and AM4 socket to support 3rd Gen Ryzen processors. A BIOS update may be required before installing a Ryzen 5000 series CPU. Four DDR4 slots accept up to 128 GB of memory in dual-channel mode. It suits compact gaming or workstation builds.

PCIe 4.0 and 3.0 Limits on One Board

The primary x16 slot runs at PCIe 4.0 x16 when a 3rd Gen Ryzen CPU is installed. A second x16 slot operates at PCIe 3.0 x4 from the chipset. One PCIe 3.0 x1 slot is also available. Two M.2 slots provide storage expansion; the first supports PCIe 4.0 x4, the second PCIe 3.0 x4. Both also accept SATA M.2 drives.

128 GB DDR4 Maximum Memory Capacity

The board supports 128 GB across four slots with speeds up to 4600 MHz overclocked on 3rd Gen Ryzen and 4800 MHz overclocked on next-gen Ryzen PRO. Native JEDEC speeds reach 3200 MHz. This ceiling determines whether the platform fits high-capacity workloads or heavy multitasking.

I korthet

  • Supports up to 128GB DDR4 memory via four 288-pin slots
  • PCIe 4.0 x16 slot for high-bandwidth graphics with 3rd Gen Ryzen CPUs
  • Dual M.2 slots including one PCIe 4.0 x4 and one PCIe 3.0 x4 for fast storage
  • 5Gbps LAN with Realtek RTL8125B controller for low-latency networking
  • 1-channel audio with Realtek ALC S1200A codec and AI noise-cancelling microphone support

Specifikationer

BrandASUS
ModelTUF GAMING B550M-PLUS
CPU Socket TypeAM4
CPU TypeBIOS update might require for AMD Zen 3 Ryzen 5000 series CPU. Refer to ASUS website for CPU support list.
ChipsetAMD B550
Number of Memory Slots4x288pin (DDR4)
Memory Standard3rd Gen AMD Ryzen Processors
DDR4 4600(O.C)/ 4400(O.C)/ 4266(O.C.)/ 4133(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3733(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3333(O.C.)/ 3200/ 3000/ 2800/ 2666/ 2400/ 2133 MHz Un-buffered Memory *
Next Generation AMD Ryzen PRO Processors
DDR4 4800(O.C.)/ 4600(O.C)/ 4466(O.C.)/ 4400(O.C)/ 4266(O.C.)/ 4133(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3733(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3333(O.C.)/ 3200/ 3000/ 2800/ 2666/ 2400/ 2133 MHz Un-buffered Memory *
* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
Maximum Memory Supported128GB
Channel SupportedDual Channel
PCI Express 4.0 x163rd Gen AMD Ryzen Processors
1 x PCIe 4.0 x16 slot (supports x16 mode)
PCI Express 3.0 x16AMD B550 Chipset
1 x PCIe 3.0 x16 slot (supports x4 mode)
PCI Express x11 x PCIe 3.0 x1 slot
* Support PCIe bifurcation for RAID on CPU function.
Serial ATA (SATA)4 x SATA 6Gb/s
M.23rd Gen AMD Ryzen Processors
M.2_1 slot (Key M), type 2242/2260/2280 (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)
SATA RAID0/1/10
Onboard Video ChipsetSupported only by CPU with integrated graphic:
1 x DisplayPort 1.2
1 x HDMI 2.1 (4K@60HZ)
Audio ChipsetRealtek ALC S1200A High Definition Audio CODEC
Audio Channels7.1 Channels
LAN ChipsetRealtek RTL8125B
Max LAN Speed2.5Gbps
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 (2 x Type-A)
1 x DisplayPort
1 x HDMI port
1 x Realtek RTL8125B 2.5Gb Ethernet port
5 x Audio jacks
1 x Optical S/PDIF out port
1 x BIOS FlashBack button
1 x PS/2 Keyboard/Mouse combo port
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 CPU Fan header
1 x 4-pin CPU OPT Fan header
2 x 4-pin Chassis Fan headers
Miscellaneous
1 x AURA Addressable Gen 2 header
2 x AURA RGB headers
1 x Clear CMOS header
1 x COM Port header
1 x Front Panel Audio header (AAFP)
1 x Speaker header
1 x SPI TPM header (14-1pin)
1 x 10-1 pin System Panel header
Form FactorMicro ATX
LED LightingRGB
Dimensions (W x L)9.6" x 9.6"
Power Pin1 x 24-pin Main Power connector
1 x 8-pin +12V Power connector
Windows 11Supported
FeaturesMulti-GPU Support:
Supports AMD 2-Way CrossFireX Technology
ASUS Exclusive Software:
Armoury Crate
- Aura Creator
- Aura Sync
- AI Noise Cancelling Microphone
AI Suite 3
- Performance And Power Saving Utility
TurboV EVO
EPU
Digi+ VRM
Fan Xpert 2+
- EZ update
TUF GAMING CPU-Z
AI Charger
ASUS Turbo LAN
DAEMON Tools
DTS Custom for GAMING Headsets
Norton Anti-virus software (Free Trial for 60 days)
WinRAR
UEFI BIOS
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
- ASUS UEFI BIOS EZ Mode
ASUS Special Features:
ASUS TUF PROTECTION
- ASUS DIGI+ VRM (Digital power design with Dr. MOS)
Package ContentsAccessories:
Cables
2 x SATA 6Gb/s cables
Miscellaneous
1 x I/O Shield
1 x M.2 Rubber Package
1 x M.2 SSD screw package
1 x TUF Gaming sticker
Installation Media
1 x Support DVD
Documentation
1 x TUF Certification card
1 x User manual
Fraktvikt1.37 kg
Paketstorlek279 × 267 × 70 mm

Frågor om den här produkten

Should I pick a Ryzen 5000 CPU or a Ryzen 3000 CPU for this board?

The board supports both 3rd Gen and Zen 3 Ryzen 5000 series CPUs, but a BIOS update may be required before a 5000 series processor will post.

What does the 2.5 Gbps LAN figure mean for my actual network speed?

The Realtek RTL8125B controller caps wired throughput at 2.5 Gbps, so transfers over a 2.5 GbE switch or router can reach roughly 300 MB/s in ideal conditions.

Which M.2 slot gives me PCIe 4.0 x4 bandwidth for an NVMe drive?

The M.2_1 slot connected to the CPU provides PCIe 4.0 x4, while the M.2_2 slot from the chipset runs at PCIe 3.0 x4.

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