Biostar Gaming AMD B550M-Silver Chipset, Socket AM4 for Ryzen, Micro-ATX Motherboard

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AMD B550 chipset
AMD B550 is the high-end chipset for over clockers and tweakers who need robust platforms. This chip provides the ultimate low-level control to its users and delivers ultimate graphics card bandwidth. It also supports PCI-E Gen4 bandwidth

HD Audio
Provides high quality sound with minimal loss of
audio fidelity.

Hi-Fi Ground
BIOSTAR Hi-Fi Ground ( Golden Line ) is noise blocking multi-layer PCB design to isolates analog audio signals from digital sources. Unique PCB layout is ideal for exceptional clarity and high fidelity sound.

Smart Ear
Smart EAR is a windows-based audio utility which allows you to easily adjust system volume. With its user-friendly GUI, you can also increase or decrease impedance setting (Low/High Gain) to optimize your headphone performance. You can easily enjoy high quality and awesome sound.

Hi-Fi Cap
Hi-Fi Cap delivers low noise, low distortion, and wide bandwidth to achieve the highest sound resolution and sound expansion. It ensures the most realistic
sound effects to gaming enthusiasts.

The new 4K2K resolution enables high-definition image display with four times the resolution of full HD, 4K2K display is faithfully express bright, highly detailed content that fills the entire screen with lifelike images. Connectivity with PCs via a single HDMI cable for displaying 4K2K data.

DVI is better than VGA for LCD displays since it is digital while VGA is analog. For LCD displays, the picture is digitized pixel per pixel. Through DVI, the panel gets data for each pixel, so the picture generated in the Graphics device matches the pixels on the panel itself.

DisplayPort is a digital display interface developed by the Video Electronics Standards Association (VESA). The interface is primarily used to connect a video source to a display device such as a computer monitor, though it can also be used to carry audio.

DirectX 12 introduces the next version of Direct3D, the graphics API at the heart of DirectX. Direct3D is one of the most critical pieces of a game or game engine, and we've redesigned it to be faster and more efficient than ever before. Direct3D 12 enables richer scenes, more objects, and full utilization of modern GPU hardware.

ATI CrossFire X™ Technology
ATI CrossFireX™ is the ultimate multi-GPU
performance gaming platform. With game dominating power, ATI CrossFireX technology enables two or more discrete graphics processors to work together to improve system performance. It supports up to four ATI Radeon™ HD graphics cards,
making it the most scalable gaming platform ever!

Integrated HDMI with HDCP
Onboard HDMI connector allows full video & audio support. It has industry-leading high definition video quality.

PCIe M.2
PCIe M.2 32Gb/s is the latest storage interface, it delivers the highest bandwidth and lower latency. It's 3 times faster compared with PCIe M.2 10Gb/s. PCIe Gen 3.0
PCIe 3.0 is the next evolution of the ubiquitous and general-purpose PCI Express I/O standard. At 8GT/s bit rate, the interconnect performance bandwidth is doubled over PCIe 2.0, while preserving compatibility with software and mechanical interfaces.

SATAIII 6Gbps provides a higher bandwidth to retrieve and transfer HD media. With this super speed data transfer, SATAIII allows an incredible data boost which is 2x faster than the SATA II. Dual DDR4 The primary advantages of DDR4 over DDR3, include higher module density, lower voltage requirements, coupled with higher data transfer rate.

PCIe 4.0
PCIe 4.0 is the next evolution of the ubiquitous and general-purpose PCI Express I/O standard. At 16GT/s bit rate, the interconnect performance bandwidth is doubled over PCIe 3.0, while preserving compatibility with software and mechanical interfaces.

PCIe M.2 4.0
PCIe M.2 4.0 is the latest storage interface, it delivers the highest bandwidth and lower latency. It is 2 times faster compared with PCIe M.2 3.0. 

USB 3.2 Gen2 Type-C
USB 3.2 Gen2 offers up to double the transfer speed of USB 3.2 Gen1 at 10 Gbps that allows for much higher data transfer rates and more efficient data transfer. And the Type-C connector is reversible so it's easier to plug in.

USB 3.2 Gen1 Type-A
USB 3.2 Gen1 delivers a compelling performance boosts and can be used to connect multiple devices without worrying about compatibility. It is capable of data transfer speeds up to 5Gbps and backwards compatible with all existing USB products.

USB 3.2 Gen2 Type-A
USB 3.2 Gen2 is a new standard called SuperSpeed USB 10Gbps to address increased performance and improve data transmission speed. It is for a max data transfer rate of 10Gbps and creates the best possible connection between your devices.

Dr. MOS integrates driver ICs and high-side / low-side MOSFETs into a small package to reduce switching losses that enables superior efficiency and performance at higher switching frequencies.

Digital PWN
Digital PWM controller is with dual-output multiphase that faster transient performance and accurately regulated frequency control. It can be enabled to greatly increase system efficiency.

Super Durable Ferrite Choke
Super Durable Ferrite Choke brings the benefits of higher current capacity, lower energy loss and better power stability.

Super Durable Solid Caps
The best quality solid state capacitors with ultra low ESR design, the Super Durable Solid Caps doubles the lifespan.

Iron Bar Protection
BIOSTAR’s exclusive Iron Bar Protection can reinforce PCI-E x16 slots to handle heavier graphics cards, prevent bending, and extend longevity of the slot, making the new-gen BIOSTAR motherboards much more robust.

ESD Protection
ESD (Electrostatic Discharge) is the major factor to destroy the PC by electrical overstress (EOS) condition. ESD occurred by PC users when touch any devices connect to a PC, which may result in damage to the motherboard or parts. ESD protection is
designed to protect the motherboard and equipment from damage by EOS.

OC / OV / OH Protection
OC / OV / OH Protection design detects overvoltage conditions and prevents voltage surges from spreading in real time. It also actively cuts off the overvoltage supply to protect your system.

2.5GUARD features 2.5G having higher data transfer speeds and can strengthen electrical stability and prevent damage from lightning strikes and electrical surges. It's 2.5X improvement than standard Ethernet connections.

New VIVID LED DJ with more customizability and options to control multiple RGB/ARGB LED lighting zones independently. Users can control color, speed
and brightness for different modes at ease.

Unified Extensible Firmware Interface (UEFI) is a brand new framework that provides a revolutionary interface. It is a modern clear and easy-to-use graphical user interface. The UEFI comes with a colorful easy-understand icons lead users into the setup layer directly.

EZ Mode
BIOSTAR EZ Mode makes everything as simple and efficient as possible. It has an attractive easy-to-use BIOS system interface that guides users to solve their problems with ease. It lays out the things which you often do in BIOS system to make the flow
smooth and seamless.

With A.I FAN users can ensure that their gaming PC can maintain its performance while staying cool. According to different cooling needs and usage scenarios, users can control speed modes. Allows users to have more customizability of fan modes and
automatically detects different temperatures to make fan operate at defined speed for optimal cooling performance. Furthermore, A.I FAN support both PWM and DC voltage fans for more cooling options.

LED ROCK ZONE comes with the RGB 12V LED header and Digital 5V LED header which offer more colorful lighting options to DIY lovers. Adjusting the color of LED and changing system colors by VIVID LED DJ will make you fully enjoy the process of PC modding developing your personal style.

BIOSTAR offers one more fan header which is called CPU OPT. Users can use it to connect any kind of water coolers for a liquid cooling system. Keep your computer stable and enjoy your machine at the utmost potential.

BISOTAR RGB SYNC is designed to create your personalized lighting effects. Let all the RGB peripherals and components sync together.

Debug LED
Debug LED helps you identify any issues going with your board or hardware. When error occurs, the corresponding LED lights will inform you on the status of your board or hardware to shorten the test time effectively.

A.I TP Control
A.I TP Control is designed for over clockers. It provides a user-friendly BIOS environment that over clockers can adjust the temperature setting to keep your PC safe and enjoy extreme overclocking performance.

B550M-SILVER Motherboard
• Supports AMD Ryzen 3rd Gen (Matisse/ Renoir) and
4th Gen (Vermeer) processors
• AMD B550 single chip architecture
• Supports 4-DIMM DDR4 By Renoir Processors-
/2400/2133 up to 128GB maximum capacity
• Supports USB 3.2 Gen2
• Supports PCIe M.2 4.0 (64Gb/s)
• Supports HDMI 2.1 4K resolution
• Supports WiFi 6 (No Wifi 6 card included)
B550M-SILVER Specifcation
CPU SUPPORT Socket AM4 support AMD Ryzen™ 3rd Gen (Matisse/
Renoir) and Ryzen™ 4th Gen (Vermeer) processors
Support for future AMD Ryzen processors with BIOS
* Please refer to for CPU support
MEMORY 4th Gen AMD Ryzen Processors (Vermeer CPUs):
Supports Dual Channel DDR4 4400+(OC)/ 4000(OC)/
3800(OC)/ 3600(OC)/ 3200/ 2933/ 2667/ 2400/ 2133/
3rd Gen AMD Ryzen Processors (Matisse CPUs):
Supports Dual Channel DDR4 4400+(OC)/ 4000(OC)/
3800(OC)/ 3600(OC)/ 3200/ 2933/ 2667/ 2400/ 2133/
3rd Gen AMD Ryzen with Radeon Graphics
Processors (Renoir APUs):
Supports Dual Channel DDR4 4933+(OC)/ 4800(OC)/
4600(OC)/ 4400(OC)/ 4000(OC)/ 3800(OC)/
3600(OC)/ 3200/ 2933/ 2667/ 2400/ 2133/ 1866
4 x DDR4 DIMM Memory Slot, Max. Supports up to
128 GB Memory
Each DIMM supports non-ECC 8/ 16/ 32 GB DDR4
* Please refer to for Memory
support list.
Supports DX12
Supports HDCP
STORAGE Total supports 2x M.2 socket and 6 x SATA III (6Gb/s)
6x SATA III Connector (6Gb/s) : Supports AHCI &
RAID 0, 1, 10
1x M.2 (M Key) Socket (M2_PCIEG4_64G_SATA):
Supports M.2 Type 2242/ 2260/ 2280 SSD module
Supports PCI-E 4.0 x4 (64Gb/s)/ 3.0 x4 (32Gb/s) -
1x M.2 (M Key) Socket (M2_PCIEG3_32G_SATA):
Supports M.2 Type 2242/ 2260/ 2280 SSD module
Supports PCI-E 3.0 x4 (32Gb/s) - NVMe/ AHCI & SATA
III (6.0Gb/s) SSD
* M.2 (M Key) Socket (M2_PCIEG4_64G_SATA) : The
bandwidth is depended on CPU. Supports PCI-E 4.0
x4 (64Gb/s) speed, which depends only on Ryzen 3rd
Gen Matisse and 4th Gen Vermeer CPUs.
* When M.2 (M2_PCIEG3_32G_SATA) slot is occupied
by SATA mode, the SATA_5 connector will be
* When M.2 (M2_PCIEG3_32G_SATA) slot is occupied
by PCI-E mode, the SATA_5/ SATA_6 connector will
be disabled.
LAN Realtek RTL8125B
10/ 100/ 1000/ 2500 Mb/s auto negotiation, Half / Full
duplex capability
Supports Realtek 2.5GbE LAN
7.1 Channels, High Definition Audio, Hi-Fi (Front)
USB 1 x USB 3.2 (Gen2) Type-C port (1 on rear I/O)
1 x USB 3.2 (Gen2) port (1 on rear I/O)
6 x USB 3.2 (Gen1) port (4 on rear I/Os and 2 via
internal headers)
6 x USB 2.0 port (2 on rear I/Os and 4 via internal
EXPANSION SLOT 1 x PCIe 4.0/ 3.0 x16 Slot (PCIEG4X16):
Supports PCIe 3.0 x 16/ 4.0 x16 mode with AMD
Ryzen™ processors.
Supports PCIe 3.0 x 16 mode AMD Ryzen™ with
Radeon Vega Graphics processors.
1 x PCIe 3.0 x16 Slot (PCIEG3X4): Supports x 4 mode
1 x PCIe 3.0 x1 Slot
* According to different CPUs will have different
* PCIe 4.0 speed only for AMD Ryzen™ 3rd Gen
Matisse and 4th Gen Vermeer CPUs.
* When using PCIe x1 slot (PCIEG3X1), PCIe x16 slot
(PCIEG3X4) will be adjusted to x1 mode.
REAR I/O 2 x WIFI Antenna Port
1 x PS/2 Keyboard / Mouse
1 x DVI-D Port
1 x DP Port
1 x HDMI Port
1 x LAN port
1 x USB 3.2 (Gen2) Type-C Port
1 x USB 3.2 (Gen2) Port
4 x USB 3.2 (Gen1) Port
2 x USB 2.0 Port
3 x Audio Jack
INTERNAL I/O 6 x SATA III (6.0Gb/s) Connector
1 x M.2 (E Key) Socket : Supports 2230 type Wi-Fi &
Bluetooth module
2 x USB 2.0 Header (each header supports 2 USB 2.0
1 x USB 3.2 (Gen1) Header (each header supports 2
USB 3.2 (Gen1) ports)
1 x 8-Pin Power Connector
1 x 24-Pin Power Connector
1 x CPU Fan Connector
1 x CPU water cooling connector (CPU_OPT)
2 x System Fan Connector
1 x Front Panel Header
1 x Front Audio Header
1 x Internal Stereo Speaker Header
1 x Clear CMOS Header
1 x S/PDIF out Connector
1 x COM Port Header
2 x LED Header (5V)
1 x LED Header (12V)
* M.2 (E key) Wi-Fi card is not provided
H/W MONITORING CPU / System Temperature Monitoring
CPU / System Fan Monitoring
Smart / Manual CPU Fan Control
System Voltage Monitoring
DIMENSION Micro ATX Form Factor Dimension: 24.4cm x 24.4cm
( W x L )
OS SUPPORT Supports Windows 10(64bit) / 11(64bit)
※Biostar reserves the right to add or remove support
for any OS with or without notice.
1 x I/O Shield
1 x DVD Driver
1 x Quick Guide
PCIe M.2 4.0

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