ASUS PRIME B550M-K AMD B550 Socket AM4 micro ATX
- AMD AM4 socket: Ready for 3rd Gen AMD RyzenTM processors
- Comprehensive cooling: PCH heatsink and Fan Xpert 2+
- Ultrafast connectivity: Dual M.2, PCIe 4.0, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A
- 5X Protection III: Multiple hardware safeguards for all-around system protection
| Processor socket | Socket AM4 |
|---|---|
| Motherboard form factor | Micro ATX |
| Compatible processor series | AMD Ryzen 3000 Series |
| Supported memory types | DDR4-SDRAM |
| SKU | 90MB14V0-M0EAY0 |
| EAN | 4718017758284 |
| Manufacturer | ASUS |
| Availability | Y |
| PDF URLs |
View PDF |
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.
Flexible Cooling Controls
Fan Xpert 2+ software provides comprehensive control over system fans. Auto-Tuning mode intelligently configures all parameters with a single click. There's also an Extreme Quiet mode that reduces chassis fan speeds to below the default minimum to keep your system whisper-quiet when performing light tasks. Fans can also be controlled via the UEFI BIOS.
Precise Digital Power Control
The Digi+ voltage-regulator module (VRM) delivers real-time control over voltage droop, automatically switching frequency and power-efficiency settings. It also allows you to fine-tune your CPU for ultimate stability and performance.
Tune It Your Way
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 you to tweak performance settings to perfectly match the way you work – maximizing your productivity.
Cooler by Design
Prime B550M-K is engineered with an array of hybrid fan headers and features comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS, ensuring your rig stays cool and stable under intense workloads.
Build on a Solid Foundation
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 transfer options.
Little Things Make a Big Difference
Prime B550 series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive interface 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.
| Internal I/O | |
|---|---|
| Number of M.2 (M) slots | 2 |
| Supported storage drive interfaces | M.2, SATA |
| USB 2.0 connectors | 2 |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 1 |
| ATX Power connector (24-pin) | Yes |
| Technical details | |
| Motherboard chipset family | AMD |
| Motherboard chipset | AMD B550 |
| Motherboard form factor | micro ATX |
| Component for | PC |
| Performance | |
| Windows operating systems supported | Windows 10 |
| Motherboard chipset family | AMD |
| Motherboard chipset | AMD B550 |
| Motherboard form factor | micro ATX |
| Component for | PC |
| Processor | |
| Processor manufacturer | AMD |
| Compatible processor series | AMD Ryzen 3000 Series |
| Processor socket | Socket AM4 |
| Memory | |
| Number of memory slots | 4 |
| Memory slots type | DIMM |
| Supported memory types | DDR4-SDRAM |
| Supported memory clock speeds | 2133,2400,2666,2800,3000,3200,3333,3466,3600,3733,3866,4000,4133,4266,4400,4600 MHz |
| Maximum internal memory | 128 GB |
| Storage controllers | |
| Supported storage drive interfaces | M.2, SATA |
| Number of storage drives supported | 6 |
| RAID support | Yes |
| Rear panel I/O ports | |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity | 0 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 2 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 0 |
| USB 2.0 ports quantity | 0 |
| PS/2 ports quantity | 1 |
| HDMI ports quantity | 1 |
| Ethernet LAN (RJ-45) ports | 1 |
| DVI-D ports quantity | 1 |
| Network | |
|---|---|
| Ethernet LAN | Yes |
| Wi-Fi | No |
| LAN controller | Realtek RTL8111H |
| Ethernet interface type | Gigabit Ethernet |
| Top Wi-Fi standard | Not available |
| Features | |
| Windows operating systems supported | Windows 10 |
| Motherboard chipset family | AMD |
| Motherboard chipset | AMD B550 |
| Motherboard form factor | micro ATX |
| Component for | PC |
| Harmonized System (HS) code | 84733020 |
| Expansion slots | |
| Number of M.2 (M) slots | 2 |
| PCI Express x1 (Gen 3.x) slots | 2 |
| PCI Express x16 (Gen 4.x) slots | 1 |
| BIOS | |
| BIOS type | UEFI AMI |
| BIOS memory size | 256 Mbit |
| Software | |
| Windows operating systems supported | Windows 10 |
| Logistics data | |
| Harmonized System (HS) code | 84733020 |
| Weight & dimensions | |
| Height | 51 mm |
| Weight | 785 g |
| Width | 244 mm |
| Depth | 244 mm |
| Other features | |
| Height | 51 mm |
| Weight | 785 g |
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|---|---|---|---|---|---|---|
| SKU |
90MB14V0-M0EAY0
|
90MB19P0-M0EAYC
|
90MB19N0-M1EAYC
|
B550M AORUS ELITE
|
90MB14U0-M0EAY0
|
B760M DS3H DDR4
|
| Manufacturer |
ASUS
|
ASUS
|
ASUS
|
Gigabyte
|
ASUS
|
Gigabyte
|
| Processor manufacturer |
AMD
|
Intel
|
Intel
|
AMD
|
AMD
|
Intel
|
| Motherboard form factor |
micro ATX
|
micro ATX
|
micro ATX
|
micro ATX
|
ATX
|
micro ATX
|
| Processor socket |
Socket AM4
|
LGA 1700
|
LGA 1700
|
Socket AM4
|
Socket AM4
|
LGA 1700
|
| Supported memory types |
DDR4-SDRAM
|
N/A
|
DDR4-SDRAM
|
DDR4-SDRAM
|
DDR4-SDRAM
|
DDR4-SDRAM
|
| Component for |
PC
|
PC
|
PC
|
PC
|
PC
|
PC
|
| Number of memory slots |
4 to 6
|
2 to 3
|
2 to 3
|
4 to 6
|
4 to 6
|
4 to 6
|
