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ASUS PRIME series is expertly engineered to unleash the full potential of 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, PRIME B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.
FLEXIBILITY
Comprehensive controls form the foundation of the ASUS PRIME series. The PRIME B550 motherboard packs flexible tools to tune every aspect of your system, enabling performance tweaks to perfectly match the way you work to maximize productivity.
All-Around Energy Efficiency
With the Energy Processing Unit (EPU), you‘ll enjoy system-wide power savings.The EPU automatically optimizes power consumption and maximizes savings with Away mode.
COOLING
PRIME B550 series are engineered with an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.
Cooler by Design
PRIME B550 series feature comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS.
Multiple Temperature Sources
Each header can dynamically reference three thermal sensors. Fan Xpert 2+ allows you to map the temperature of supported ASUS graphics cards to optimize cooling for GPU- and CPU-intensive tasks.
PERFORMANCE
PRIME B550 motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible data transfer options.
Dual M.2 Slots (up to 64 Gbps)
PRIME B550M-K ARGB offers a total of two M.2 slots, one of which supports data-transfer speeds of up to 64Gbps via PCIe 4.0, enabling quicker boot-up and app load times with OS or application drives.
FLEXIBILITY
Comprehensive controls form the foundation of the ASUS PRIME series. The PRIME B550 motherboard packs flexible tools to tune every aspect of your system, enabling performance tweaks to perfectly match the way you work to maximize productivity.
Intelligent Control
All-Around Energy Efficiency
With the Energy Processing Unit (EPU), you‘ll enjoy system-wide power savings.The EPU automatically optimizes power consumption and maximizes savings with Away mode.
COOLING
PRIME B550 series are engineered with an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.
Cooler by Design
PRIME B550 series feature comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS.
PRIME B550 series are engineered with an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.
Multiple Temperature Sources
Each header can dynamically reference three thermal sensors. Fan Xpert 2+ allows you to map the temperature of supported ASUS graphics cards to optimize cooling for GPU- and CPU-intensive tasks.
PERFORMANCE
PRIME B550 motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible data transfer options.
Storage
Dual M.2 Slots (up to 64 Gbps)
PRIME B550M-K ARGB offers a total of two M.2 slots, one of which supports data-transfer speeds of up to 64Gbps* via PCIe 4.0, enabling quicker boot-up and app load times with OS or application drives.
CUSTOMIZATION
The PRIME B550 series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive RGB lighting controls that let you customize your system to create a uniquely personal look.
Outstanding Audio
Combined onboard features deliver elevated audio
Intelligent design and premium hardware create audio quality unlike anything you’ve ever experienced.
Audio Shielding
Audio shielding ensures precision analog/digital separation and greatly reduced multi-lateral interference.
Dedicated Audio PCB Layers
Separate layers for left and right tracks ensures both channels deliver consistent, equal quality.
Premium Audio Capacitors
Provides warm, natural, and immersive sound with exceptional clarity and fidelity.
Processor | |
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Processor socket | Socket AM4 |
Processor manufacturer | AMD |
Memory | |
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Unbuffered memory | Yes |
Maximum internal memory | 64 GB |
Supported memory clock speeds | 2133,2400,2666,2800,2933,3000,3200,3333,3400,3466,3600,3733,3866,4000,4133,4200,4266,4333,4400,4466,4600,4866,5100 MHz |
Memory channels | Dual-channel |
Memory slots type | DIMM |
Number of memory slots | 2 |
Supported memory types | DDR4-SDRAM |
Storage controllers | |
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RAID levels | 0, 1, 10 |
RAID support | Yes |
Supported storage drive interfaces | M.2 |
Supported storage drive types | HDD & SSD |
Internal I/O | |
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RGB LED pin header | Yes |
Number of COM connectors | 1 |
TPM connector | Yes |
12V power connector | Yes |
Number of chassis fan connectors | 2 |
CPU fan connector | Yes |
ATX Power connector (24-pin) | Yes |
Front panel connector | Yes |
Front panel audio connector | Yes |
S/PDIF out connector | Yes |
Number of SATA III connectors | 4 |
USB 3.2 Gen 1 (3.1 Gen 1) connectors | 2 |
USB 2.0 connectors | 2 |
Rear panel I/O ports | |
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Microphone in | Yes |
Line-in | Yes |
Headphone outputs | 1 |
DisplayPort version | 1.4 |
DisplayPorts quantity | 1 |
HDMI version | 2.1 |
HDMI ports quantity | 1 |
PS/2 ports quantity | 1 |
Ethernet LAN (RJ-45) ports | 1 |
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
USB 2.0 ports quantity | 2 |
Network | |
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Wake-on-LAN ready | Yes |
Ethernet interface type | Gigabit Ethernet |
Ethernet LAN | Yes |
Features | |
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Windows operating systems supported | Windows 10 x64, Windows 11 |
Audio output channels | 7.1 channels |
Motherboard chipset | AMD B550 |
Motherboard chipset family | AMD |
Motherboard form factor | micro ATX |
Component for | PC |
Expansion slots | |
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Number of M.2 (M) slots | 2 |
PCI Express x16 (Gen 4.x) slots | 1 |
PCI Express x16 (Gen 3.x) slots | 1 |
PCI Express x1 (Gen 3.x) slots | 1 |
BIOS | |
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Clear CMOS jumper | Yes |
BIOS memory size | 128 Mbit |
BIOS type | EFI AMI |
Packaging data | |
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Package weight | 960 g |
Package height | 515 mm |
Package depth | 270 mm |
Package width | 260 mm |
Weight & dimensions | |
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Height | 36.5 mm |
Depth | 221 mm |
Width | 244 mm |
Packaging content | |
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Cables included | SATA |
Other features | |
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Weight | 460 g |