Description:Main Specifications
Product Description ASUS PRIME B550M-A/CSM - motherboard - micro ATX - Socket AM4 - AMD B550
Product Type Motherboard - micro ATX
Chipset Type AMD B550
Processor Socket 1 x Socket AM4
Compatible Processors Ryzen (supports 3rd Generation Ryzen / 3rd Generation Ryzen with Radeon Graphics)
Max RAM Size 128 GB
RAM Supported 4 DIMM slots - DDR4, non-ECC, ECC, unbuffered
Storage Ports 4 x SATA-600 (RAID), 2 x M.2
USB / FireWire Ports 2 x USB 3.2 Gen 2 + 4 x USB 3.2 Gen 1 + (2 x USB 3.2 Gen 1 + 4 x USB 2.0 via headers)
Audio HD Audio (8-channel)
LAN Gigabit Ethernet
General
Product Type Motherboard - micro ATX
Chipset Type AMD B550
Processor Socket Socket AM4
Max Processors Qty 1
Compatible Processors Ryzen (supports 3rd Generation Ryzen / 3rd Generation Ryzen with Radeon Graphics)
Expansion / Connectivity
Expansion Slots 1 x CPU ¦ 4 x DIMM 288-pin ¦ 1 x PCIe 4.0 x16 (PCIe 4.0 x16 mode (with 3rd Generation Ryzen CPU); PCIe 3.0 x16 mode (with 3nd Generation Ryzen with Radeon Graphics CPU)) ¦ 2 x PCIe 3.0 x1
Storage Interfaces SATA-600 -connectors: 4 x 7pin Serial ATA - RAID 0 / RAID 1 / RAID 10 ¦ SATA-600 / PCIe 4.0 -connectors: 1 x M.2 ¦ SATA-600 / PCIe 3.0 -connectors: 1 x M.2
Interfaces 1 x VGA ¦ 1 x DVI-D ¦ 1 x LAN (Gigabit Ethernet) ¦ 4 x USB 3.2 Gen 1 ¦ 2 x USB 3.2 Gen 2 ¦ 1 x audio line-in - mini-jack ¦ 1 x audio line-out - mini-jack ¦ 1 x microphone - mini-jack ¦ 1 x PS/2 keyboard / mouse ¦ 1 x HDMI
Internal Interfaces 4 x USB 2.0 - header ¦ 2 x USB 3.2 Gen 1 - header ¦ 1 x SPDIF out - header ¦ 1 x audio - header ¦ 1 x serial - header ¦ 1 x speaker - header
Power Connectors 24-pin main power connector, 8-pin ATX12V connector
Miscellaneous
Included Accessories 1 x M.2 screw, I/O back cover
Cables Included 2 x Serial ATA cable
Software Included Drivers & utilities, ASUS AI Charger, ASUS CPU-Z, ASUS AI Suite III, ASUS EZ Update, DAEMON Tools, WinRAR, Norton AntiVirus (60 days trial)
Width 9.6 in
Depth 9.6 in
Audio
Type HD Audio (8-channel)
Audio Codec Realtek ALC887
Compliant Standards High Definition Audio
Features
BIOS Type AMI
BIOS Features UEFI BIOS, ASUS EZ Flash 3
Sleep / Wake Up Wake on LAN (WOL)
Hardware Features Jack retasking, ASUS Q-Design, ASUS TurboV EVO, Q-DIMM, ASUS EZ DIY, Q-Slot, CrashFree BIOS 3, audio jack detect technology, ASUS EPU (Energy Processing Unit), ASUS DIGI+ VRM, Preboot eXecution Environment (PXE), ASUS Stainless Steel Back I/O, ASUS Fan Xpert 2+, LANGuard, ASUS Overvoltage Protection, Lighting Control, ASUS 5X Protection III, ASUS SafeSlot Core, ASUS Aura Sync, Armoury Crate, ASUS Control Center Express (ACC Express)
LAN
Network Controller Realtek RTL8111H
Network Interfaces Gigabit Ethernet
Supported RAM
Max Size 128 GB
Technology DDR4
Bus Clock 2400 MHz, 2133 MHz, 2800 MHz, 3000 MHz, 2666 MHz, 2933 MHz, 3333 MHz (O.C.), 3466 MHz (O.C.), 3733 MHz (O.C.), 3600 MHz (O.C.), 3866 MHz (O.C.), 4000 MHz (O.C.), 4133 MHz (O.C.), 4400 MHz (O.C.), 4266 MHz (O.C.), 4600 MHz (O.C.), 3200 MHz
Supported RAM Integrity Check Non-ECC, ECC
Registered or Buffered Unbuffered
Features Dual channel memory architecture