1st M.2 highest PCI Express generation Expansion slots - 4.0
1st M.2 largest key size Expansion slots - 22110
2nd M.2 highest PCI Express generation Expansion slots - 3.0
2nd M.2 largest key size Expansion slots - 2280
12V power connector Internal I/O - Yes
ACPI version BIOS - 6.0
ATX Power connector (24-pin) Internal I/O - Yes
Audio chip Features - Realtek ALC897
Audio output channels Features - 7.1 channels
BIOS memory size BIOS - 256 Mbit
BIOS type BIOS - UEFI
Category1 - Mainboards
Category Code - MBA
Category_1 - Motherboards
Category_2 - Motherboards - AMD AM5
Compatible processor series Processor - AMD Ryzen 3000 Series, AMD Ryzen 4000 Series, AMD Ryzen 5000 Series
Component for Features - PC
CPU fan connector Internal I/O - Yes
Depth Weight & dimensions - 304.8 mm
Description - PRO B550-S
PRO B550-S is engineered with PCIe 4.0 M.2, M.2 Shield Frozr, Frozr AI Cooling, and Front Type-C, ready for the AMD Ryzen™ 5000 series processors. The PRO Series is tailored to professionals from all walks of life. The lineup features impressive performance and high quality, while aiming to provide users incredible experience. Users who care about productivity and efficiency can definitely count on the MSI PRO Series to assist you with multitasking and increasing efficiency. MSI motherboards circuitry ensure the case standoff keep out zones are pure and clean. Moreover, the protective paint is printed around each screw hole to prevent parts from being scratched or damaged to the motherboard. EZ DEBUG LED
Onboard LEDs will indicate the source of the problem so you know exactly where to look to get up and running again. HEADER WITH DIFFERENT COLOR
To better differentiate between pin headers for different purposes, mark the pump sys header and the ARGB headers in gray, enabling users to manage cables more efficiently. A host of features inject artificial intelligence into key aspects of your computing experience to make smarter, real-time optimizations. The MSI Center offers a clean, minimal interface to customize and manage your PC settings. The AI Engine, for example, automatically adjusts settings based on the applications you're using, ensuring seamless performance. Core Boost technology combines MSI's premium layout and optimized power design which allows for faster and undistorted current delivery to the CPU at pin-point precision. Not only supporting multi-core CPU, also creating the perfect conditions for your CPU overclocking. These rich features also help the motherboard deliver stable and powerful performance. Exclusive MSI Memory Boost technology utilizes an optimized and isolated DDR4 circuit design to ensure pure and undisturbed signals, significantly enhancing performance and efficiency. Transient Voltage Suppressors (TVS) are safety devices used to protect against excessive voltage. All motherboard models of MSI are equipped with TVS. When the voltage abnormally rises, the TVS switches from a high-resistance state to a low-resistance state, diverting the excessive voltage to ground. This helps prevent circuit damage caused by high voltage. The 8-pin and 24-pin power connectors of MSI motherboards are all designed with solid pins. The solid pin design allows for a more stable transmission of 12V power to the CPU, even when handling high current loads. Corrosive resistance IO Shield to help improve static electricity and reduce electromagnetic radiation noise from the system as well as more durable compare to traditional IO Shields. MSI motherboards prioritize safety with the embedded Overcurrent Protection (OCP), ensuring crucial components such as the USB ports, DDR memory, PWM IC, and CPU are shielded from excessive current. This proactive defense mechanism curtails the risk of damage or malfunction due to power surges, promoting long-term system stability. This commitment to safeguarding your hardware underscores MSI's dedication to producing motherboards that prioritize durability and stability. The grounding structure of power phases is the MSI's exclusive design. This patented design enables to suppress the electromagnetic interference (EMI) generated by the power phases and helps to efficiently conduct heat to the copper plane with grounding properties. M.2 Shield Frozr
Strengthened M.2 thermal solution helps keep M.2 SSD safe and ensures incredible performance. Heavy Plated VRM Heatsink
The VRM heatsink covers the upper MOS and helps dissipate the heat. 7W/mK Thermal Pad & Additional Choke Pad
High-quality 7W/mK MOSFET thermal pads and additional choke thermal pads ensure stable performance when all cores are runnging at high speed. Chipset Heatsink
The enlarged heatsink is designed to reduce dust and noise and capable of maintaining high efficiency of heat dissipation. Connect and synchronize with MSI coolers and cases with strategically positioned pin-header locations, including a CPU fan header and a SYSTEM fan header. Cooling Wizard serves as a comprehensive solution for managing fan settings across all MSI products. It ensures superior cooling performance and noise reduction for your gaming PC, offering compatibility with PWM/DC fans and pumps, customizable options, and intuitive temperature monitoring for optimal operation with one click. Frozr AI Cooling targets CPU and GPU temperatures. The AI system detects CPU and GPU temperatures and automatically adjusts the fan duty of system fans to ensure optimal performance. MSI fan headers automatically detect fans running in DC or PWM mode for optimal tuning of fan speeds and silence. Hysteresis also makes your fans spin up fluently to make sure your system stays silent, no matter what. MSI AI LAN Manager automatically classifies and prioritizes the latency-sensitive applications for online games, giving you the best online gaming experience with low latency. MSI PRO series motherboards support all the latest storage standards, which allows users to connect any ultra-fast storage device. Start games faster, load levels faster and have a real advantage over your enemies. LIGHTNING GEN 4 PCI-E
MSI lightning Gen 4 PCI-E represents the bandwidth of a x16 interface to 64GB/s that has doubled compared to its previous generation. REINFORCED,
HEAVY SOLDERED CONNECTIONS
MSI PCI Express Steel Armor slots are secured to the motherboard with extra solder points and support the weight of heavy graphics cards. When every advantage in games counts, Steel Armor shields the point of contact from electromagnetic interference. MSI motherboards support USB Front Type-C that allows gamers to connect with the latest USB devices. Built up a system with MSI PC case to have the most convenient experience. Splash on some color and vibrant RGB lighting effects using Mystic Light utility of MSI Center, which has million colors and fancy LED effects. Enjoy the full control and creativity of your PC's lighting with one software. Get more from a loaded BIOS designed for ease of use. Fine-tune the motherboard for gaming performance, efficiency, or overclocking world records! MSI brand new MSI Center unifies a suite of MSI software utilities into a single centralized application. Take control of advanced motherboards features and unleash endless possibilities. MSI motherboards provide 60 days free trial of AIDA64 Extreme - MSI edition. AIDA64 Extreme is an almighty application for system information, diagnostics and benchmarks. With the application, you can monitor the detailed hardware and software information on PC and save it to file in multiple formats such as CSV and HTML. Multiple layers of protection for your devices, online privacy features including our Secure VPN, plus Dark Web Monitoring - all in a single solution. With MSI motherboards, you can enjoy a 60-day free trial of Norton 360.Supports AMD Ryzen™ 5000 Series, 5000 G-Series, 4000 G-Series, and 3000 Series processorsSupports DDR4 Memory, up to 4800+ MT/s (OC)Lightning Fast Experience: PCIe 4.0 slot and Lightning Gen4 x4 M.2EZ DIY: EZ Debug LED and EZ MountingAudio Boost: Reward your ears with studio-grade sound qualityMSI Center: A brand-new software which integrates all MSI exclusive tools with user-friendly user interface.
Description1 - MSI Mainboard PRO B550-S - ATX - Socket AM4 - AMD B550
dimensionalWeight - 1285
EAN - 4711377471282
EAN_code - 4711377471282
ECC сompatibility Memory - Non-ECC
EPS power connector (8-pin) Internal I/O - Yes
Ethernet interface type Network - Gigabit Ethernet
Ethernet LAN (RJ-45) ports Rear panel I/O ports - 1
Ethernet LAN Network - Yes
Expansion slots - Number of M.2 (M) slots - 2
Expansion slots - PCI Express x1 slots - 1
Expansion slots - PCI Express x16 slots - 2
Features - Audio chip - Realtek ALC897
Features - Audio output channels - 7.1 channels
Features - Motherboard chipset - AMD B550
Features - Motherboard chipset family - AMD
Features - Motherboard form factor - ATX
Front panel audio connector Internal I/O - Yes
Front panel connector Internal I/O - Yes
HDMI ports quantity Rear panel I/O ports - 1
HDMI version Rear panel I/O ports - 1.4
Internal I/O - ATX Power connector (24-pin) - Yes
Internal I/O - Chassis intrusion connector - Yes
Internal I/O - CPU fan connector - Yes
Internal I/O - Front panel audio connector - Yes
Internal I/O - Front panel connector - Yes
Internal I/O - Number of SATA III connectors - 4
Internal I/O - RGB LED pin header - Yes
Internal I/O - TPM connector - Yes
Internal I/O - USB 2.0 connectors - 4
Internal I/O - USB 3.2 Gen 1 (3.1 Gen 1) connectors - 3
LAN controller Network - Realtek RTL8111H
Manufacturer - MSI
ManufacturerID - 7C56-098R
Manufacturer_code - 7C56-098R
Maximum internal memory Memory - 128 GB
Memory - ECC сompatibility - Non-ECC
Memory - Maximum internal memory - 128 GB
Memory - Memory channels - Dual-channel
Memory - Memory slots type - DIMM
Memory - Number of memory slots - 4
Memory - Supported memory clock speeds - 2667
Memory - Supported memory clock speeds - 2800
Memory - Supported memory clock speeds - 2933
Memory - Supported memory clock speeds - 3000
Memory - Supported memory clock speeds - 3066
Memory - Supported memory clock speeds - 3200
Memory - Supported memory clock speeds - 3466
Memory - Supported memory clock speeds - 3600
Memory - Supported memory clock speeds - 3733
Memory - Supported memory clock speeds - 3866
Memory - Supported memory clock speeds - 4000
Memory - Supported memory clock speeds - 4133
Memory - Supported memory clock speeds - 4266
Memory - Supported memory clock speeds - 4400
Memory - Supported memory clock speeds - 4533
Memory - Supported memory clock speeds - 4600
Memory - Supported memory clock speeds - 4733
Memory - Supported memory clock speeds - 4800
Memory - Supported memory clock speeds - 4866 MHz
Memory - Supported memory types - DDR4-SDRAM
Memory - Unbuffered memory - Yes
Memory channels Memory - Dual-channel
Memory slots type Memory - DIMM
Motherboard chipset family Features - AMD
Motherboard chipset Features - AMD B550
Motherboard form factor Features - ATX
Name - MB AMD B550 SAM4 ATX/PRO B550-S MSI
Name - MSI PRO B550-S - AM5
Network - Ethernet interface type - Gigabit Ethernet
Network - Ethernet LAN - Yes
Network - LAN controller - Realtek RTL8111H
Network - Wi-Fi - No
Number of chassis fan connectors Internal I/O - 4
Number of CPU fan connectors Internal I/O - 1
Number of HDDs supported Storage controllers - 4
Number of M.2 (M) slots Expansion slots - 2
Number of memory slots Memory - 4
Number of SATA III connectors Internal I/O - 4
Number of storage drives supported Storage controllers - 6
On-board graphics card Graphics - Yes
PackageHeight - 76
PackageLength - 343
PackageWeight - 1300
PackageWidth - 271
Packaging content - Cables included - SATA
Parallel processing technology support Graphics - Not supported
PC health monitoring Features - CPU, Fan, Temperature
PCI Express x1 (Gen 3.x) slots Expansion slots - 1
PCI Express x16 (Gen 3.x) slots Expansion slots - 1
PCI Express x16 (Gen 4.x) slots Expansion slots - 1
Power source type Features - ATX
Processor - Compatible processor series - AMD Ryzen 3000 Series
Processor - Compatible processor series - AMD Ryzen 5000 Series
Processor - Compatible processor series - AMD Ryzen™ 4000 G-Series
Processor - Compatible processor series - AMD Ryzen™ 5000 G-Series
Processor - Processor manufacturer - AMD
Processor - Processor socket - Socket AM4
Processor manufacturer Processor - AMD
Processor socket Processor - Socket AM4
producerCode - PRO B550-S
productName - MSI PRO B550-S motherboard
Product Net Weight ELKO Verified Logistics Data - 0.7 kg
productSize - Normal
RAID levels Storage controllers - 0, 1, 10
RAID support Storage controllers - Yes
Rear panel I/O ports - Ethernet LAN (RJ-45) ports - 1
Rear panel I/O ports - HDMI ports quantity - 1
Rear panel I/O ports - USB 2.0 ports quantity - 4
Rear panel I/O ports - USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity - 2
Rear panel I/O ports - USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity - 1
RGB LED pin header Internal I/O - Yes
Shipping Box Depth ELKO Internal Logistics Data - 55.5 cm
Shipping Box Height ELKO Internal Logistics Data - 38 cm
Shipping Box Weight ELKO Internal Logistics Data - 15 kg
Shipping Box Width ELKO Internal Logistics Data - 38.5 cm
sizeX - 340
sizeY - 270
sizeZ - 70
Storage controllers - RAID levels - 0
Storage controllers - RAID levels - 1
Storage controllers - RAID levels - 10
Storage controllers - Supported storage drive interfaces - M.2, SATA III
Storage controllers - Supported storage drive types - HDD & SSD
Summary - MSI PRO B550-S. Processor manufacturer: AMD, Processor socket: Socket AM4, Compatible processor series: AMD Ryzen 3000 Series, AMD Ryzen 4000 Series, AMD Ryzen 5000 Series. Supported memory types: DDR4-SDRAM, Maximum internal memory: 128 GB, Memory slots type: DIMM. Supported storage drive interfaces: M.2, Micro SATA III, Supported storage drive types: HDD & SSD, RAID levels: 0, 1, 10. Ethernet interface type: Gigabit Ethernet, LAN controller: Realtek RTL8111H. Component for: PC, Motherboard form factor: ATX, Motherboard chipset family: AMD
Supported memory clock speed (max) Memory - 4866 MHz
Supported memory clock speeds Memory - 2667,2800,2933,3000,3066,3200,3466,3600,3733,3866,4000,4133,4266,4400,4533,4600,4733,4800,4866 MHz
Supported memory types Memory - DDR4-SDRAM
Supported processor sockets Processor - Socket AM4
Supported storage drive interfaces Storage controllers - M.2, Micro SATA III
Supported storage drive types Storage controllers - HDD & SSD
System Management BIOS (SMBIOS) version BIOS - 2.8
Total number of SATA connectors Internal I/O - 4
TPM connector Internal I/O - Yes
Unbuffered memory Memory - Yes
Unit Box Height - 0.075
Unit Box Length - 0.345
Unit Box Width - 0.27
Unit Calculated Volume ELKO Internal Logistics Data - 0.00812 cubm
Unit Calculated Weight ELKO Verified Logistics Data - 1.5 kg
Unit Depth ELKO Verified Logistics Data - 34.5 cm
Unit Height ELKO Verified Logistics Data - 7.5 cm
Units per Pallet ELKO Verified Logistics Data - 0
Units per Shipping Box ELKO Verified Logistics Data - 10
Unit Width ELKO Verified Logistics Data - 27 cm
USB 2.0 connectors Internal I/O - 4
USB 2.0 ports quantity Rear panel I/O ports - 4
USB 3.2 Gen 1 (3.1 Gen 1) connectors Internal I/O - 2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity Rear panel I/O ports - 2
USB 3.2 Gen 2 (3.1 Gen 2) connectors Internal I/O - 1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity Rear panel I/O ports - 1
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity Rear panel I/O ports - 1
Vendor Homepage - https://www.msi.com/Motherboard/PRO-B550-S
Warranty - 36 months
warrantyLength - 36
warrantyType - G
WEEE - DE83654239
Weight - 1,40
weight - 1330
Weight & dimensions - Depth - 243.8 mm
Weight & dimensions - Width - 304.8 mm
Wi-Fi Network - No
Width Weight & dimensions - 243.8 mm
Windows operating systems supported Features - Windows 10, Windows 11
