The MSI B550-A PRO Motherboard helps users work smarter by delivering an efficient and productive experience. Featuring stable functionality and high-quality assembly, this motherboard provides not only optimized professional workflows but also less troubleshooting and longevity.

Brand New - A brand-new, unused, unopened, undamaged item in its original packaging.

This item comes with a 12-month manufacturer's warranty.

• PCI-E Steel Armor
Protecting VGA cards against bending and EMI
• Mystic Light Extension
Control additional RGB strips or other RGB components added your system with Mystic Light APP and mobile device.
• Lightning Gen4 Solution
The latest Gen4 PCI-E and M.2 solution with up to 64GB/s bandwidth for maximum transfer speed.
• M.2 Shield FROZR
Strengthened built-in M.2 thermal solution. Keeps M.2 SSDs safe while preventing throttling, making them run faster.
• Core Boost
With premium layout and fully digital power design to support more cores and provide better performance.
• EZ Debug LED
Easiest way to troubleshoot.
• Audio Boost
Reward your ears with studio grade sound quality for the most immersive audio experience.
• DDR4 Boost
Advanced technology to deliver pure data signals for the best gaming performance and stability.
• 2oz Thickened Copper PCB
An enhanced PCB design improves heat dissipation and performance reliability.

General
• Chipset: AMD B550
• CPU Socket: AM4
Back Panel I/O
• USB:
- 2 x USB 2.0 Type-A
- 2 x USB 3.1 / USB 3.2 Gen 1 Type-A
- 1 x USB 3.1 / USB 3.2 Gen 2 Type-A
- 1 x USB 3.1 / USB 3.2 Gen 2 Type-C
• Thunderbolt: None
• Display:
- 1 x DisplayPort
- 1 x HDMI
• Audio:
- 5 x 3.5 mm
- 1 x S/PDIF
• Ethernet / Controller: 1
• PS/2: 1 x PS/2
• Buttons: BIOS Flashback
Memory
• Memory Slots: 4 x 288-Pin
• Memory Support: DDR4 1866, 2133, 2400, 2667, 2800, 2933, 3000, 3066, 3200, 3466, 3600, 3733, 3866, 4000, 4133, 4266, 4400 MHz
• Maximum Capacity: 128 GB
• Channel Architecture: Dual Channel
• ECC Support: Non-ECC, ECC Unbuffered
Storage Expansion
• SATA: 6 x SATA III
• M.2:
- 1 x M Key 2242, 2260, 2280, 22110 (PCIe 4.0 x4, PCIe 3.0 x4)
- 1 x M Key 2242, 2260, 2280 (PCIe 3.0 x4)
• U.2: None
• RAID Support:
- RAID 0, 1, 10 (SATA)
- RAID 0, 1 (M.2)
Internal I/O
• Expansion Slots
- 1 x PCIe 4.0 x16
- 1 x PCIe 3.0 x16
- 2 x PCIe 3.0 x1
• USB:
- 2 x USB 2.0 Header (Supports 4 USB Type-A Port)
- 1 x USB 3.1 / USB 3.2 Gen 1 Header (Supports 1 USB Type-C Port)
- 1 x USB 3.1 / USB 3.2 Gen 1 Header (Supports 2 USB Type-A Port)
• Multi-GPU Support: 2-Way AMD CrossFireX
• Air Cooling:
- 1 x 4-Pin CPU
- 6 x 4-Pin System
• Liquid Cooling: 1 x 4-Pin Pump
• Power Connectors:
- 1 x 24-Pin Mainboard
- 1 x 8-Pin ATX
• Security: Chassis Intrusion, TPM Module
• LED Header: 3 x RGB
• Audio: 1 x Speaker
• Diagnostics: Clear CMOS
Front Panel I/O
• I/O Connection Headers: USB 3.1 / USB 3.2 Gen 1
Audio
• Audio Codec: Realtek ALC892/ALC897 (7.1-Channel)
Software
• Supported Operating Systems: Windows 10 (64-Bit)
Physical
• Form Factor: ATX
• Dimensions: 9.6 x 12" / 24.4 x 30.5 cm

• 1x MSI Pro Series ATX AM4 Motherboard B550-A PRO
• User Guide

Do you have a question about this product? Please call 1800 90 90 99.