Gigabyte B550M K

Overview

The Gigabyte B550M K is a micro ATX motherboard designed to deliver AMD Ryzen performance in a compact form factor without sacrificing essential expansion options or system stability. It supports Ryzen 5000, 4000, and 3000 series processors via the AM4 socket, allowing you to select a CPU that fits your performance needs and budget. With four DDR4 DIMM slots supporting up to 128GB of memory, this board is well suited for gaming, content creation, and multitasking environments.

Storage options include two PCIe M.2 connectors for fast NVMe drives and four SATA 6Gb/s ports for additional SSDs or hard drives, providing a flexible balance between speed and capacity. The PCIe 4.0 x16 slot accommodates a dedicated graphics card, making it a solid choice for gaming rigs and creative workstations alike.

Key features

• Supports a wide range of AMD Ryzen processors, giving flexibility in performance and price points
• Four DDR4 DIMM slots enable up to 128GB of memory for demanding applications and multitasking
• Dual M.2 slots provide high-speed storage options for faster boot times and game loading
• Four SATA 6Gb/s ports allow for additional storage expansion with SSDs or traditional hard drives
• PCIe 4.0 x16 slot supports the latest graphics cards for enhanced gaming and creative workloads
• Realtek Gigabit Ethernet ensures stable and fast wired network connections for online gaming and remote work
• Smart Fan 5 technology automatically adjusts fan speeds based on temperature sensors to maintain quiet operation and efficient cooling
• Durable components and reinforced slots improve long-term reliability and system stability
• Isolated audio circuitry delivers clear sound quality for music, movies, and gaming effects

Key specs

• Form factor: Micro ATX
• CPU socket: AM4
• Memory: 4 x DDR4 DIMM slots, up to 128GB
• Storage interfaces: 2 x PCIe M.2 slots, 4 x SATA 6Gb/s ports
• Expansion slots: 1 x PCIe 4.0 x16, additional slots for other cards
• Network: Realtek Gigabit Ethernet controller
• Cooling: Smart Fan 5 with multiple temperature sensors

Connectivity and compatibility

This motherboard offers a versatile set of ports and slots to connect a variety of devices and peripherals. The PCIe 4.0 x16 slot supports modern graphics cards, while additional PCIe slots allow for sound cards, capture cards, or other expansion needs. The dual M.2 slots and SATA ports provide options for fast NVMe drives and larger capacity storage, fitting well in compact builds without compromising performance.

Its Realtek Gigabit Ethernet controller ensures reliable wired networking, which is essential for stable online gaming, streaming, and professional workloads. The board’s compatibility with multiple Ryzen processor generations makes it a flexible choice for upgrades or new builds.

Ideal uses and environments

The Gigabyte B550M K fits well in small to mid-sized PC cases, making it a strong choice for users who want a powerful AMD Ryzen system in a compact space. It works well for gamers who need PCIe 4.0 graphics support, content creators requiring high memory capacity and fast storage, and office users looking for a stable and expandable platform. Its efficient cooling and durable design also make it suitable for long hours of use in home offices or media centers.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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