MSI PRO B550M-B microATX AM4 DDR4 AMD B550 Chipset Motherboard
Product Highlights & Specifications
🔹 Brand: MSI
🔹 Model: PRO B550M-B
🔹 Product Type: microATX Motherboard
🔹 Chipset: AMD B550
🔹 CPU Support: AMD Ryzen™ 5000 Series, 5000 G-Series, 4000 G-Series, 3000 Series, and 3000 G-Series desktop processors
🔹 CPU Socket: AM4
Memory
💾 2 x DDR4 DIMM slots
💾 Maximum memory capacity: 64GB
💾 Supports up to 4600+ MT/s (OC)
💾 Supports Dual-Channel mode
💾 Supports non-ECC, un-buffered memory
💾 Supports JEDEC speeds
💾 Supports memory overclocking via A-XMP OC Mode
💾 Double-sided DIMM latches
Expansion & Storage
⚡ 1 x PCI-E x16 slot
⚡ PCIe 4.0 x16 support from CPU
⚡ 2 x M.2 slots
⚡ M.2_1: PCIe 4.0 x4 / SATA mode, supports 2280/2260/2242
⚡ M.2_2: PCIe 3.0 x4, supports 22110/2280
⚡ 4 x SATA 6G
⚡ Supports RAID 0, 1, 5, and 10 for SATA storage
⚡ Supports RAID 0, 1, and 10 for M.2 NVMe storage
Display Outputs
🖥️ 1 x HDMI™ 2.1 — up to 4K 60Hz*
🖥️ 1 x DisplayPort 1.2 — up to 4K 60Hz*
🖥️ Available only with processors featuring integrated graphics.
Audio
🎧 Realtek® ALC897 Codec
🎧 7.1-Channel High Definition Audio
🎧 Audio Boost for studio-grade sound quality
Networking
🌐 Realtek® RTL8111H
🌐 1Gbps LAN
USB Connectivity
🔌 2 x USB 2.0 Rear
🔌 4 x USB 2.0 Front
🔌 4 x USB 5Gbps Type-A Rear
🔌 2 x USB 5Gbps Type-A Front
🔌 1 x USB 5Gbps Type-C Front
DIY & Features
💡 EZ Debug LED
💡 EZ Mounting
💡 4 x EZ Debug LED
💡 3 x Addressable V2 RGB LED connectors
💡 1 x RGB LED connector
💡 TPM 2.0 pin header
💡 MSI Center software
Internal I/O
🧩 1 x ATX_PWR
🧩 1 x CPU_PWR
🧩 1 x CPU Fan
🧩 1 x System Fan
🧩 2 x Front Panel (JFP)
🧩 1 x Chassis Intrusion (JCI)
🧩 1 x Front Audio (JAUD)
🧩 1 x Com Port (JCOM)
Operating System Support
🖥️ Windows® 11 64-bit
🖥️ Windows® 10 64-bit
Form Factor / PCB
📐 microATX (mATX)
📐 220mm × 243.84mm
⚠️ Reminders:
1️⃣ Please record a full unboxing video as proof in case of issues.
2️⃣ Verify the delivery rider’s ID or take a photo with your payment for security.
