Gigabyte B550M H ARGB mATX Motherboard For AMD Ryzen 5000 Series CPUs Socket AM4 - AMD B550 Chipset - 2 X DDR4 DIMM , M.2 - 2 x Internal USB 2.0 Header - 1x Internal USB 3.2 Header 1x GbE
Features
B550M H ARGB
AMD B550 Ultra Durable Motherboard with GbE LAN, ARGB header, Q-Flash Plus, PCIe 4.0 x4 M.2, Smart Fan 6, Anti-Sulfur Resistors Design
- Supports AMD Ryzen™ 5000 Series/ Ryzen™ 5000 G-Series/ Ryzen™ 4000 G-Series and Ryzen™ 3000 and Ryzen™ 3000 G-Series Processors
- Dual Channel ECC/ Non-ECC Unbuffered DDR4, 2 DIMMs
- Integrated ARGB header and Q-Flash Plus button
- PCIe Gen4.0 x4 M.2 with PCIe NVMe & SATA mode support
- Fast Network: GbE LAN
- 8-Channel HD Audio with High Quality Audio Capacitors
- Rear HDMI and DisplayPort for Multi-display Support
- Smart Fan 6 Features Multiple Temperature Sensors, Hybrid Fan Headers with FAN STOP
- GIGABYTE CONTROL CENTER (GCC), Simple and Easy Use

NVMe PCIe 4.0*/3.0 M.2 Connector
With NVMe PCIe 4.0*/3.0 x4 M.2 connector onboard, GIGABYTE Motherboards bring users to experience NVMe mode or SATA mode connectivity with delivering up to 64 Gb/s data transfer speed.
*Actual support may vary by CPU.

PCIe 4.0* Hardware Design
* Product uses PCIe 4.0 grade material, actual support varies by hardware configuration.
1 - PCIe 4.0 Slot
PCIe 4.0 x16 slot with faster bandwidth and lower impedance.
2 - M.2 PCIe 4.0 Slot
M.2 PCIe 4.0 x4 slot with Lower impedance.

GbE LAN
Gigabit Ethernet (GbE) LAN provides significantly faster data transfer speeds of up to 1 Gbps, which is ten times faster than traditional 100 Mbps Fast Ethernet, enabling smoother streaming, faster file transfers, and more responsive network applications.

Smart Fan 6
Smart Fan 6 contains several unique cooling features that ensure gaming PC maintain its performance while staying cool and quiet. Multiple fan headers can support PWM/DC fan and pump, and users can easily define each fan curve based on different temperature sensors across the board via intuitive user interface.
- High Current Support: Each fan headers support PWM and DC fan and Water Cooling Pump , and up to 24W (12V x 2A) with Over-Current Protection
- Precision Control: Multiple temperature/fan speed control points for precise fan curve
- Dual Curve Mode: Slope/Stair dual mode for different user scenario
- Fan Stop: Fan can stop completely below users' specified temperature point

Smart Fan 6 BIOS UI
1. Improve fan curve UI: We increase control points from 5 to 7 and larger fan speed graph for precise and easier fan curve control.
2. Slope/Stair dual graph mode: Fan curve can be quickly switch with Slope and Stair modes for different user scenario. Slope is traditional and intuitive linear fan speed curve. With newly added Stair non-linear mode, fan keeps at same speed between specified temperature interval.
3. Manual Input: For advanced users, we provide fan speed manual input for more precise control.
4. EZ Tuning: Use can place 4 EZ Tuning points at rough temperature/fan speed, and Smart Fan 6 can quickly generate a fan curve.
5. Fan curve profile: Fan curve profile can be saved in BIOS ROM, profile will be kept after updating BIOS.
Note: The picture is for reference and may vary by model.

AUDIO
High-End Audio Capacitors
GIGABYTE motherboards use high-end audio capacitors. These high quality capacitors help deliver high resolution and high fidelity audio to provide the most realistic sound effects for gamers.
Audio Noise Guard
GIGABYTE motherboards feature an audio noise guard that essentially separates the board's sensitive analog audio components from potential noise pollution at the PCB level.

GIGABYTE Patented Double Locking Bracket

START SULFURIZATION PROTECTION
Sulfur compounds in the air can penetrate tiny onboard resistors creating chemical change and causing these resistors to open or short. If either of these occurs the motherboard will fail to function. By equipping resistors with an Anti-Sulfur Design GIGABYTE gives Ultra Durable Motherboards a whole new meaning.

4K Ultra HD Support
4K resolution is the next technological milestone in high-definition content delivery, utilizing approximately 4,000 pixels on the horizontal axis, more than four times today's standard HD pixel density. GIGABYTE motherboards provide native 4K support with integrated AMD Radeon® Graphics via HDMI.

HDMI™ - The Next Generation Multimedia Interface
HDMI™ is a High-Definition Multimedia Interface which provides up to 5Gb/s video transmitting bandwidth and 8-channel high quality audio all through a single cable. Able to transmit superior, uncompressed digital video and audio, HDMI™ ensures the crispest rendering of digital content up to 1080p without the quality losses associated with analog interfaces and their digital-to-analog conversion. In addition, HDMI™ is compatible with HDCP (High-bandwidth Digital Content Protection), allowing the playback of Blu-ray/HD DVD and other protected media content.

Specifications
Technical Specifications
| CPU | AMD Socket AM4, support for:AMD Ryzen™ 5000 G-Series Processors/AMD Ryzen™ 5000 Series Processors/AMD Ryzen™ 4000 G-Series Processors/AMD Ryzen™ 3000 G-Series Processors/AMD Ryzen™ 3000 Series Processors(Go to GIGABYTE's website for the latest CPU support list.) |
|---|---|
| Chipset | AMD B550 |
| Memory | 2 x DDR4 DIMM sockets supporting up to 64 GB (32 GB single DIMM capacity) of system memoryDual channel memory architectureSupport for DDR4 5100(O.C.) / 4800(O.C.) / 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) / 3400(O.C.) / 3200 / 2933 / 2667 / 2400 / 2133 MHz memory modulesSupport for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules (operate in non-ECC mode)Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modulesSupport for Extreme Memory Profile (XMP) memory modules(The CPU and memory configuration may affect the supported memory types, data rate (speed), and number of DRAM modules, please refer to "Memory Support List" on GIGABYTE's website for more information.) |
| Onboard Graphics | Integrated Graphics Processor with AMD Radeon™ Graphics support:- 1 x DisplayPort, supporting a maximum resolution of 5120x2880 @ 60 Hz* Support for DisplayPort 1.4 version, HDCP 2.3, and HDR.- 1 x HDMI port, supporting a maximum resolution of 4096x2160 @ 60 Hz* Support for HDMI 2.1 version, HDCP 2.3, and HDR.** Support for native HDMI 2.1 TMDS compatible ports.(Graphics specifications may vary depending on CPU support.)Maximum shared memory of 16 GB |
| Audio | Realtek® Audio CODECHigh Definition Audio2/4/5.1/7.1-channel* You can change the functionality of an audio jack using the audio software. To configure 7.1-channel audio, access the audio software for audio settings. |
| LAN | Realtek® GbE LAN chip (1 Gbps/100 Mbps/10 Mbps) |
| Expansion Slots | 1 x PCI Express x16 slot, integrated in the CPU: AMD Ryzen™ 5000/3000 Series Processors support PCIe 4.0 x16 mode AMD Ryzen™ 5000 G/4000 G/3000 G Series Processors support PCIe 3.0 x16 modeChipset:- 1 x PCI Express x1 slot, supporting PCIe 3.0 and running at x1 |
| Storage Interface | 1 x M.2 connector, integrated in the CPU, supporting Socket 3, M key, type 2280 SSDs:- AMD Ryzen™ 5000/3000 Series Processors support SATA and PCIe 4.0 x4/x2 SSDs- AMD Ryzen™ 5000 G/4000 G/3000 G Series Processors support SATA and PCIe 3.0 x4/x2 SSDs4 x SATA 6Gb/s connectorsRAID 0, RAID 1, and RAID 10 support for NVMe SSD storage devicesRAID 0, RAID 1, and RAID 10 support for SATA storage devices |
| USB | CPU:- 4 x USB 3.2 Gen 1 ports on the back panelChipset:- 2 x USB 3.2 Gen 1 ports available through the internal USB header- 6 x USB 2.0/1.1 ports (2 ports on the back panel, 4 ports available through the internal USB headers) |
| Internal I/O Connectors | 1 x 24-pin ATX main power connector1 x 8-pin ATX 12V power connector1 x CPU fan header2 x system fan headers3 x addressable RGB Gen2 LED strip headers1 x RGB LED strip header1 x M.2 Socket 3 connector4 x SATA 6Gb/s connectors1 x front panel header1 x front panel audio header1 x USB 3.2 Gen 1 header2 x USB 2.0/1.1 headers1 x Trusted Platform Module (TPM) header (2x6 pin, for the GC-TPM2.0_S module only)1 x Clear CMOS jumper |
| Back Panel Connectors | 2 x USB 2.0/1.1 ports1 x PS/2 keyboard/mouse port1 x DisplayPort*1 x HDMI port*1 x Q-Flash Plus button4 x USB 3.2 Gen 1 ports1 x RJ-45 port3 x audio jacks* Actual support may vary by CPU. |
| I/O Controller | iTE® I/O Controller Chip |
| H/W Monitoring | Voltage detectionTemperature detectionFan speed detectionOverheating warningFan fail warningFan speed control* Whether the fan speed control function is supported will depend on the fan you install. |
| BIOS | 1 x 128 Mbit flashUse of licensed AMI UEFI BIOSPnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0 |
| Unique Features | Support for GIGABYTE Control Center (GCC)* Available applications in GCC may vary by motherboard model. Supported functions of each application may also vary depending on motherboard specifications.Support for Q-FlashSupport for Q-Flash PlusSupport for Smart Backup |
| Bundled Software | Norton® Internet Security (OEM version) |
| Operating System | Support for Windows 11 64-bitSupport for Windows 10 64-bit |
| Form Factor | Micro ATX Form Factor; 23.3cm x 19.8cm |
| Brand | Gigabyte |
|---|---|
| Product Type | PC Parts |
Shipping Information
- Free NZ-wide shipping on orders over $299
- Standard delivery 2–5 business days
- Rural delivery may take an additional 1–2 days
- Same-day dispatch for orders placed before 2pm (weekdays)
Returns Policy
- 7-day returns on unused items in original packaging
- Faulty or damaged products covered under warranty
- Contact our support team to initiate a return







