Key Specifications
Choose one or multiple features to search for items that have the same specifications.| Technical details | |
| Warranty period | 3 year(s) |
| Processor | |
| Processor manufacturer | AMD |
| Compatible processor series | AMD Ryzen 3000 Series, AMD Ryzen 4000 Series, AMD Ryzen 5000 Series |
| Processor socket | AM4 |
| Supported processor sockets | Socket AM4 |
| Maximum internal memory supported by processor | 128 GB |
| Memory | |
| Maximum internal memory | 128 GB |
| ECC | ![]() |
| Non-ECC | ![]() |
| Supported memory clock speeds | 4733,4600,4400,4266,4133,4000,3866,3733,3600,3466,3400,3200,2933,2667,2400,2133 MHz |
| Supported memory types | DDR4 |
| Memory channels | Dodeca-channel |
| Unbuffered memory | ![]() |
| Memory slots type | DIMM |
| Supported memory module capacities | 1GB, 2GB, 4GB, 8GB, 12GB, 16GB, 32GB |
| Number of memory slots | 4 |
| Supported memory clock speed (max) | 4733 MHz |
| Maximum internal memory per slot | 32 GB |
| ECC сompatibility | ECC & Non-ECC |
| Weight & dimensions | |
| Height | 35 mm |
| Width | 244 mm |
| Depth | 244 mm |
| Networking | |
| Ethernet LAN | ![]() |
| Bluetooth | ![]() |
| LAN controller | Realtek RTL8111H |
| Wi-Fi | ![]() |
| Ethernet interface type | Gigabit Ethernet |
| Internal I/O | |
| USB 2.0 connectors | 1 |
| CPU fan connector | ![]() |
| ATX Power connector (24-pin) | ![]() |
| Number of chassis fan connectors | 1 |
| Front panel audio connector | ![]() |
| Power fan connector | ![]() |
| TPM connector | ![]() |
| EPS power connector (8-pin) | ![]() |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 1 |
| Number of SATA III connectors | 4 |
| Audio connector | ![]() |
| USB 3.2 Gen 2 (3.1 Gen 2) connectors | 0 |
| Total number of SATA connectors | 4 |
| Front panel connector | ![]() |
| 12V power connector | ![]() |
| Number of CPU fan connectors | 1 |
| Number of EPS power connectors (8-pin) | 1 |
| Back panel I/O ports | |
| PS/2 ports quantity | 1 |
| Line-in | ![]() |
| USB 2.0 ports quantity | 4 |
| Ethernet LAN (RJ-45) ports | 1 |
| Headphone outputs | 1 |
| Microphone in | ![]() |
| VGA (D-Sub) ports quantity | 0 |
| DVI-D ports quantity | 0 |
| HDMI ports quantity | 1 |
| HDMI version | 2.1 |
| DisplayPorts quantity | 1 |
| DisplayPort version | 1.4 |
| 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 | 0 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 0 |
| Storage controllers | |
| RAID levels | 0, 1, 10 |
| Number of HDDs supported | 2 |
| RAID support | ![]() |
| Number of storage drives supported | 6 |
| Supported storage drive types | HDD & SSD |
| Supported storage drive interfaces | M.2, SATA |
| Packaging data | |
| Package weight | 837 g |
| Package depth | 265 mm |
| Package height | 54 mm |
| Package width | 265 mm |
| Packaging content | |
| Bundled software | Norton® Internet Security (OEM version) LAN bandwidth management software |
| Batteries included | ![]() |
| Screws included | ![]() |
| Expansion slots | |
| PCI Express x16 slots | 1 |
| PCI Express x1 slots | 1 |
| PCI Express x1 (Gen 3.x) slots | 1 |
| PCI Express x16 (Gen 3.x) slots | 1 |
| Number of M.2 (M) slots | 2 |
| PCI Express x16 (Gen 4.x) slots | 1 |
| 1st M.2 largest key size | 2280 |
| 2nd M.2 largest key size | 2280 |
| 1st M.2 highest PCI Express generation | 4.0 |
| 2nd M.2 highest PCI Express generation | 3.0 |
| BIOS | |
| BIOS memory size | 128 Mbit |
| BIOS type | UEFI AMI |
| ACPI version | 5.0 |
| Clear CMOS button | ![]() |
| Clear CMOS jumper | ![]() |
| Desktop Management Interface (DMI) version | 2.7 |
| System Management BIOS (SMBIOS) version | 2.7 |
| Battery | |
| Battery technology | Lithium-Manganese Dioxide (LiMnO2) |
| Battery type | CR2032 |
| Number of battery cells | 1 |
| Battery weight | 3 g |
| Lithium weight per battery | 0.07 g |
| Graphics | |
| Maximum resolution | 5120 x 2880 pixels |
| Parallel processing technology support | Not supported |
| DirectX version | 12.0 |
| HDCP | ![]() |
| Graphics card family | AMD |
| On-board graphics card | ![]() |
| Features | |
| Motherboard chipset | AMD B550 |
| Motherboard form factor | Micro ATX |
| Product colour | Brown |
| Audio output channels | 7.1 channels |
| Cooling type | Passive |
| PC health monitoring | Fan, Temperature, Voltage |
| Windows operating systems supported | Windows 10 x64, Windows 11 x64 |
| Power source type | ATX |
| Motherboard chipset family | AMD |
| Component for | PC |
| Audio chip | Realtek ALC897 |
| Logistics data | |
| Country of origin | China |
| Products per shipping (inner) case | 1 pc(s) |
| EAN | 4719331852764 |
| Warranty | 1 year |
The GIGABYTE B550M K is a Micro ATX motherboard built around the AMD B550 chipset for the AM4 socket. It is engineered to support AMD Ryzen 5000, 4000 G-Series, and 3000 series processors, providing a stable foundation for mainstream desktop builds. The board incorporates a primary PCIe 4.0 x16 slot, which delivers the necessary bandwidth for current-generation graphics cards. Power is managed through standard 24-pin ATX and 8-pin EPS connectors to ensure adequate delivery to system components during operation.
For system memory, this motherboard includes four DIMM slots that accommodate up to 128 GB of dual-channel DDR4 RAM, with support for overclocked speeds up to 4733 MHz. Storage options consist of two M.2 slots for fast NVMe solid-state drives and four SATA III ports with RAID 0, 1, and 10 support. Onboard connectivity features include a Gigabit Ethernet port for wired networking, along with multiple USB 3.2 Gen 1 and USB 2.0 ports. The rear panel also provides both HDMI 2.1 and DisplayPort 1.4 outputs for use with processors that have integrated graphics.
Key Features:- Supports AMD Ryzen 5000, 4000 G-Series, and 3000 Series processors
- Micro ATX form factor for compatibility with mid-size cases
- Four DDR4 memory slots with dual-channel support up to 128 GB
- Primary PCIe 4.0 x16 slot for high-bandwidth graphics cards
- Dual M.2 connectors for high-speed NVMe storage
- Four SATA 6Gb/s ports with RAID 0, 1, and 10 functionality
- Gigabit LAN for a stable wired network connection
- Onboard HDMI and DisplayPort for use with integrated graphics
- Realtek Audio CODEC for integrated sound processing
- Includes a TPM header for security module integration
Estimated delivery: 13.01 - 15.01
Today: 10:00 - 18:00
Estimated delivery: 13.01 - 15.01
Today: 09:00 - 17:00
Estimated delivery: 13.01 - 15.01
Today: 10:00 - 17:00
Estimated delivery: 13.01 - 15.01
Today: 10:00 - 18:00
Estimated delivery: 13.01 - 15.01
Today: 10:00 - 18:00
Estimated delivery time: 13.01 - 15.01
Estimated delivery time: 14.01 - 15.01
Estimated delivery time: 13.01 - 14.01
Estimated delivery time: 14.01 - 15.01
Estimated delivery time: 14.01
Estimated delivery time: 13.01 - 15.01
Estimated delivery time: 13.01 - 15.01
Estimated delivery time: 14.01
- manual pdf (English)


