GIGABYTE B550M DS3H AM4 DDR4 AMD Motherboard
MPN GIGABYTE-B550M-DS3H · Brand Gigabyte · mATX
The Gigabyte B550M DS3H is a Micro ATX AMD B550 motherboard for AM4 Ryzen processors, offering PCIe 4.0, dual M.2 NVMe slots, up to 128 GB DDR4, and RGB Fusion 2.0 in a 244 × 244 mm form factor
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Overview
The Gigabyte B550M DS3H is a Micro ATX motherboard built on the AMD B550 chipset, designed for AMD Socket AM4 and compatible with 3rd Generation AMD Ryzen processors, including models with integrated Radeon Graphics. It offers a practical and feature-rich platform for builders seeking a compact footprint without sacrificing modern connectivity. Memory support is generous for the segment: four DDR4 DIMM slots accommodate up to 128 GB of system memory (up to 32 GB per DIMM) in dual-channel configuration. Speed support extends to DDR4 4000 MHz (O.C.) with 3rd Gen Ryzen processors, and up to DDR4 4733 MHz (O.C.) with Ryzen APU variants. Both ECC and non-ECC unbuffered DIMMs are supported, and XMP profiles are recognised for straightforward overclocking. For storage, two M.2 Socket 3 (M-key) connectors are provided. The CPU-connected M.2 slot (M2A_CPU) supports PCIe 4.0 x4 NVMe drives (with 3rd Gen Ryzen CPUs) as well as SATA SSDs in sizes up to 22110. The chipset-connected M.2 slot (M2B_SB) supports PCIe 3.0 x2 and SATA SSDs in sizes up to 2280. Four SATA 6 Gb/s ports with RAID 0, 1, and 10 support round out the storage options. The primary PCIe x16 slot runs at PCIe 4.0 x16 mode with 3rd Gen Ryzen (non-APU) CPUs, delivering full bandwidth for discrete graphics cards. An additional PCIe x16 physical slot wired at x4 (PCIe 3.0) and a PCIe x1 slot are also present. Display outputs on the rear panel include one HDMI 2.1 port (up to 4096×2160 @ 60 Hz with HDR and HDCP 2.3) and one DVI-D port (up to 1920×1200 @ 60 Hz), available when using a Ryzen APU with integrated Radeon graphics. Audio is handled by a Realtek ALC887 codec supporting up to 7.1-channel High Definition Audio. Networking is provided by a Realtek GbE LAN chip (1000/100 Mbit). USB connectivity includes four USB 3.2 Gen 1 ports and four USB 2.0 ports on the rear panel, with additional headers for internal expansion. RGB Fusion 2.0 supports both addressable LED (ARGB) and standard RGB LED strips via dedicated headers. Smart Fan 5 enables temperature-based fan control across multiple headers, and Q-Flash Plus allows BIOS updates without a CPU or memory installed. Verified Specifications: - Socket: AMD AM4 - Chipset: AMD B550 - Form Factor: Micro ATX, 244 mm × 244 mm - Memory: 4× DDR4 DIMM, up to 128 GB, dual-channel, XMP, ECC/non-ECC unbuffered - Storage: 2× M.2 (PCIe 4.0/3.0 + SATA), 4× SATA 6 Gb/s, RAID 0/1/10 - PCIe: 1× PCIe 4.0 x16 (CPU), 1× PCIe 3.0 x4, 1× PCIe 3.0 x1 - Video Out: 1× HDMI 2.1 (4K@60Hz), 1× DVI-D (1920×1200@60Hz) - Audio: Realtek ALC887, 7.1-channel HD Audio - LAN: Realtek GbE (1000/100 Mbit) - USB (rear): 4× USB 3.2 Gen 1, 4× USB 2.0 - BIOS: AMI UEFI, 256 Mbit flash, Q-Flash Plus - RGB: RGB Fusion 2.0 (ARGB + RGB headers) - Warranty: 3 Years
Datasheet
| Warranty | 3 Years |
|---|---|
| Form Factor | mATX |
| Chipset | AMD B550 |
| CPU Type | AMD Socket AM4, support for: 3rd Generation AMD RyzenTM processors/ 3rd Generation AMD RyzenTM with RadeonTM Graphics processors |
| Lan | Realtek® GbE LAN chip (1000 Mbit/100 Mbit) |
| 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 header6 x USB 2.0/1.1 ports (4 ports on the back panel, 2 ports available through the internal USB header) |
| Bios | 1 x 256 Mbit flashUse of licensed AMI UEFI BIOSPnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0 |
| Audio | Playback Device to change the default setting first. Please visit GIGABYTE's website for details on configuring the audio software."}">Realtek® ALC887 codecHigh Definition Audio2/4/5.1/7.1-channel* To configure 7.1-channel audio, you need to open the audio software and select Device advanced settings > Playback Device to change the default setting first. Please visit GIGABYTE's website for details on configuring the audio software |
| Memory | 4 x DDR4 DIMM sockets supporting up to 128 GB (32 GB single DIMM capacity) of system memory3rd Gen AMD Ryzen™ Processors:Support for DDR4 4000(O.C.) / 3600(O.C.) / 3333(O.C.) /3200/2933/2667/2400/2133 MHz memory modulesNew Generation AMD Ryzen™ with Radeon™ Graphics processors:Support for DDR4 4733(O.C.) / 4600(O.C.) / 4400(O.C.) / 4000(O.C.) / 3600(O.C.) / 3333(O.C.) /3200/2933/2667/2400/2133 MHz memory modulesDual channel memory architectureSupport for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modulesSupport for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modulesSupport for Extreme Memory Profile (XMP) memory modules |
| 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 cooler you install |
| I/O Controller | iTE® I/O Controller Chip |
| Expansion Slots | 1 x PCI Express x16 slot (PCIEX16), integrated in the CPU:3rd Generation AMD Ryzen™ processors support PCIe 4.0 x16 mode3rd Generation AMD Ryzen™ with Radeon™ Graphics processors support PCIe 3.0 x16 mode* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.1 x PCI Express x16 slot (PCIEX4), integrated in the Chipset:Supporting PCIe 3.0 x4 mode1 x PCI Express x1 slot (PCIEX1), integrated in the Chipset:Supporting PCIe 3.0 x1 mode |
| Unique Features | Support for APP Center* Available applications in APP Center may vary by motherboard model. Supported functions of each application may also vary depending on motherboard specifications.@BIOSEasyTuneFast BootGame BoostON/OFF ChargeRGB FusionSmart BackupSystem Information ViewerSupport for Q-Flash PlusSupport for Q-FlashSupport for Xpress Install |
| Bundled Software | Norton® Internet Security (OEM version)Realtek® 8118 Gaming LAN Bandwidth Control Utility |
| Onboard Graphics | Integrated in the 3rd Generation AMD Ryzen™ with Radeon™ Graphics processors:1 x DVI-D port, supporting a maximum resolution of 1920×1200@60 Hz* The DVI-D port does not support D-Sub connection by adapter.1 x HDMI port, supporting a maximum resolution of 4096×2160@60 Hz* Support for HDMI 2.1 version, HDCP 2.3, and HDR.Maximum shared memory of 16 GB |
| Operating System | Support for Windows 10 64-bit |
| Storage Interface | 1 x M.2 connector (M2A_CPU), integrated in the CPU, supporting Socket 3, M key, type 2242/2260/2280/22110 SSDs:3rd Generation AMD Ryzen™ processors support SATA and PCIe 4.0 x4/x2 SSDs3rd Generation AMD Ryzen™ with Radeon™ Graphics processors support SATA and PCIe 3.0 x4/x2 SSDs1 x M.2 connector (M2B_SB), integrated in the Chipset, supporting Socket 3, M key, type 2242/2260/2280 SSDs:Supporting SATA and PCIe 3.0 x2 SSDs4 x SATA 6Gb/s connectors, integrated in the Chipset:Support for RAID 0, RAID 1, and RAID 10 |
| Back Panel Connectors | 1 x PS/2 keyboard/mouse port1 x DVI-D port1 x HDMI port4 x USB 3.2 Gen 1 ports4 x USB 2.0/1.1 ports1 x RJ-45 port3 x audio jacks |
| 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 headers2 x addressable LED strip headers2 x RGB LED strip headers1 x CPU cooler LED strip/RGB LED strip header2 x M.2 Socket 3 connectors4 x SATA 6Gb/s connectors1 x front panel header1 x front panel audio header1 x USB 3.2 Gen 1 header1 x USB 2.0/1.1 header1 x Trusted Platform Module (TPM) header (2×6 pin, for the GC-TPM2.0_S module only)1 x serial port header1 x Clear CMOS jumper1 x Q-Flash Plus button |




