Reliable AMD B550 mATX Motherboard with PCIe 4.0, Dual M.2, 128GB DDR4 & Triple Display Outputs:

The ASUS PRIME B550M-A (90MB14I0-M0EAY0) is a Micro-ATX motherboard powered by the AMD B550 chipset and Socket AM4, engineered to support AMD Ryzen™ 5000, 5000 G-Series, 4000 G-Series, and 3000 Series desktop processors. Built to deliver steady power delivery and comprehensive cooling for home and office PCs, it features four DDR4 DIMM slots supporting up to 128GB (4860+ MHz OC), PCIe 4.0 x16 expansion, and dual M.2 storage slots (including a primary PCIe 4.0 x4 M.2 speed slot). Equipped with Realtek 1Gb Ethernet, Aura Sync RGB lighting headers, and versatile legacy-to-modern display outputs (HDMI 2.1, DVI-D, and VGA), the PRIME B550M-A provides essential connectivity for everyday computing and budget gaming setups.

Key Features:

AMD Ryzen AM4 Platform: Compatible with 3rd Gen Ryzen processors and Ryzen 5000 Series CPUs for multi-core performance.
PCIe 4.0 High-Speed Support: Unlocks double the bandwidth of PCIe 3.0 for modern graphics cards and ultra-fast PCIe 4.0 NVMe SSDs.
Comprehensive Cooling Infrastructure: Features a dedicated VRM heatsink and PCH heatsink coupled with Fan Xpert 2+ management for thermal dissipation.
Triple Display Output Flexibility: Onboard HDMI 2.1, DVI-D, and VGA ports allow multi-monitor productivity setups using Ryzen APUs with integrated Radeon graphics.
5X Protection III Durability: Hardware safeguards including SafeSlot Core, LANGuard surge protection, Overvoltage Protection, and Stainless-Steel Back I/O ensure long-term system stability.

specs:

Brand	ASUS
Model	ASUS PRIME B550M-A
Product Number	90MB14I0-M0EAY0
CPU	AMD Ryzen 5000/5000 G-Series/4000 G-Series/3000 Series Desktop Processor
Chipset	AMD B550 Chipset
Memory	4x DIMM, Max. 128GB, DDR4
Memory Frequency	4866(OC)/4800(OC)/4600(OC)/4466(OC)/4400(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133 MHz, Un-buffered Memory
Memory Features	Dual Channel Memory Architecture
Graphics	1x D-Sub // 1x DVI-D // 1x HDMI 2.1(4K@60HZ)
Expansion Slots	1x PCIe 4.0 x16 (x16 mode) // 1 x PCIe 3.0 x16 (x16 mode) // 2 x PCIe 3.0 x1
Storage	2x M.2 // 4x SATA 6Gb/s ports
Storage M.2	M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x4 & SATA modes) // M.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes)
Storage (SATA)	4x SATA 6Gb/s ports
RAID Support	Support Raid 0, 1, 10
USB	Rear USB: 2x USB 3.2 Gen 2 Type-A \| 4 x USB 3.2 Gen 1 Type-A // Front USB: 2x USB 3.2 Gen 1 Type-A \| 4 x USB 2.0
Audio	Realtek ALC887/897 7.1 Surround Sound High Definition Audio CODEC
Ethernet	Realtek RTL8111H 1Gb Ethernet
Back Panel I/O Ports	HDMI // DVI-D // D-Sub // LAN (RJ45) //Audio jacks // PS/2 // USB 3.2 Gen 2 // USB 3.2 Gen 1
BIOS	256 Mb Flash ROM, UEFI AMI BIOS
Manageability	WOL by PME, PXE
Operating System	Windows 10 64bit
Form Factor	mATX, 24.4 x 24.4cm

ASUS PRIME B550M-A AM4 Micro-ATX Motherboard

Product Description