Asus
Prime Series AMD B550 AM4 mATX Motherboard (ASUS PRIME B550M-K)
- 128GB Max DDR4 Memory
- 1x PCIe x16, 2x PCIe x1
- 2x M.2, 4x SATA 3.0, 0/1/10 RAID
- 6x USB 3.2 Type A, 4x USB 2.0 Type A
- 1x HDMI, 1x DVI-D, 1x D-Sub
- Realtek RTL8111H 1Gb Ethernet, ASUS LANGuard
- Realtek ALC887/897 7.1 Surround Sound High Definition Audio CODEC
Model: B550M-K
Mnf. #: ASUS PRIME B550M-K
GTIN/Barcode:SKU: 72042
Warranty: 3 years
Asus Prime Series AMD B550 AM4 mATX Motherboard (ASUS PRIME B550M-K)
ASUS Prime series is expertly engineered to unleash the full potential of 3rd Generation 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.
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.
UEFI BIOS
The renowned ASUS UEFI BIOS provides everything you need to configure, tweak and tune your system. It offers intelligently simplified options for PC DIY beginners, as well as comprehensive features for seasoned veterans.
Advanced Tuning for Serious Tweakers
An intuitive Advanced mode offered via the UEFI lets you take complete control. A built-in search feature makes it easy to find options, and various Advanced functions let you intelligently make nuanced adjustments so you can dial in performance just the way you want.
Quick and Simple Setup
EZ mode displays vital settings and stats and also offers guided wizards, drag-and-drop functionality, and one-click application of important settings — all to help you get your rig up and running in no time.
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.
PCIe 4.0 M.2 (up to 64 Gbps)
PCIe 4.0 M.2 Slot supports up to 22110 and provide NVMe SSD RAID support for an incredible performance boost. Create a RAID configuration with up to PCIe 4.0 storage device to enjoy the fastest data-transfer speeds on the 3rd Generation AMD Ryzen platform.
USB 3.2 Gen 2 Type-A
Numerous USB ports support high-end rigs loaded with peripherals, including two rear-panel USB Type-A connectors with fast USB 3.2 Gen 2 connectivity for compatible cases.
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
Intelligent design and premium hardware create audio quality unlike anything you've ever experienced.
Armoury Crate
Armoury Crate is a new software utility designed to give you centralized control of supported products, from a single intuitive interface. Armoury Crate provides control of settings for ASUS products, including keyboard and mouse preferences. This software even features dedicated product registration and highlight to help you stay in touch with the ASUS community.
SafeSlot Core
SafeSlot Core is the ASUS-exclusive PCIe slot. Featuring a fortified design that's anchored to the motherboard by a special hook, SafeSlot Core provides 1.6x stronger retention and 1.3x greater shearing resistance than standard expansion slots.
Overvoltage Protection
An exclusive circuit design with built-in voltage regulators to protect your motherboard from damage caused by unexpected high-level voltages from unstable or inferior power supplies.
DRAM Overcurrent Protection
Onboard resettable fuses prevent overcurrent and short-circuit damage. This extends beyond I/O ports to DRAM to safeguard the lifespan of your system and connected devices.
Stainless-Steel Back I/O
Corrosion-resistant stainless-steel back I/O panels bonded with chromium oxide have a lifespan that's three times longer than ordinary panels.
LANGuard
ASUS LANGuard is a hardware-level network protection feature that integrates advanced signal-coupling technology and premium anti-EMI surface-mounted capacitors to improve throughput and ensure a more reliable connection.
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General |
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| Product Line | Prime Series | |
| Model | B550M-K | |
| Product Type | Desktop | |
| Processor Socket | AM4 | |
| Form Factor | Micro-ATX | |
| Chipset | AMD B550 | |
| Supported Processors | AMD Ryzen 5000 Series/ 4000 G-Series/ 3000 Series Desktop Processors | |
Memory |
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| Memory Channels | Dual | |
| Memory Type | DDR4 | |
| Memory Slots | 4 | |
| Memory Bandwidth | DDR4 4800(O.C.)/4600(O.C)/4466(O.C.)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory AMD Ryzen 4000 G-Series Processors DDR4 4600(O.C)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory AMD Ryzen 5000 Series/ 3000 Series Desktop Processors | |
| Max System Memory | 128 GB | |
| ECC Support | ECC Memory (ECC mode) support varies by CPU. | |
Rear Panel Connectors |
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| USB 3.2 Type-A |
6
2 x USB 3.2 Gen 2 (teal blue) (2 x Type-A) 4 x USB 3.2 Gen 1 (blue) Type-A |
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| D-Sub (VGA) | 1 | |
| DVI | 1 DVI-D | |
| HDMI | 1 | |
| LAN (RJ45) | 1 | |
| OFC Audio Jacks | 3 | |
| PS/2 Mouse/Keyboard Combo | 1 | |
Expansion Slots |
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| PCI Express x16/x8/x4 | 1 | |
| PCI Express x1 | 2 | |
Graphics System |
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| Integrated Video | ||
| Multi-GPU Support | ||
Internal I/O Connectors & Headers |
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| 24-pin ATX Power Supply Connector | 1 | |
| 8-pin ATX 12V Power Connector | 1 | |
| System/Chassis FAN Headers | 2 | |
| AAFP Connector | 1 | |
| TPM Module Connector | 1 | |
| Clear CMOS Jumper | 1 | |
| CPU FAN Connector | 1 | |
| S/PDIF Header | 1 | |
| USB 2.0 Headers | 2 | |
| USB 3.2 Headers | 1 | |
| COM Port Header | 1 | |
Networking |
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| Wired LAN | ASUS LANGuard Realtek RTL8111H 1Gb Ethernet | |
Storage System |
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| M.2 Ports | 2 | |
| SATA 3.0 Ports | 4 | |
| RAID | 0/1/10 | |
| Optane Support | ||
Audio |
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| Integrated Audio | Yes | |
| Audio Chip | Realtek ALC887/897 7.1 Surround Sound High Definition Audio CODEC | |
| Channels | 7.1 | |
Dimensions |
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| Width | 244 mm | |
| Length | 244 mm | |