Gigabyte B550M DS3H AC AM4 Ryzen mATX Motherboard, 4x DDR4, 3x PCI-e, 2x M.2, 4x SATA III, RAID 0/1/10, 4x USB 3.2, 4x USB 2.0 | B550M DS3H AC R2 1.0

Gigabyte B550M DS3H AC AM4 Ryzen mATX Motherboard, 4x DDR4, 3x PCI-e, 2x M.2, 4x SATA III, RAID 0/1/10, 4x USB 3.2, 4x USB 2.0

CPU
AMD Socket AM4, support for: AMD Ryzen

Chipset
AMD B550

Memory
4 x DDR4 DIMM sockets supporting up to 128 GB (32 GB single DIMM capacity) of system memory

Audio
Realtek® Audio CODEC

LAN
Realtek® GbE LAN chip (10/100/1000 Mbit)

Wireless Communication module
Intel® Wi-Fi AC 3168

Expansion Slots
1 x PCI Express x16 slot (PCIEX16)

Storage Interface
1 x M.2 connector (M2A_CPU), integrated in the CPU, supporting Socket 3

USB
•CPU:
4 x USB 3.2 Gen 1 ports on the back panel
•Chipset:
2 x USB 3.2 Gen 1 ports available through the internal USB header
6 x USB 2.0/1.1 ports (4 ports on the back panel, 2 ports available through the internal USB header)

I/O Controller
iTE® I/O Controller Chip

BIOS
1 x 256 Mbit flash
Use of licensed AMI UEFI BIOS
PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0

Bundled Software
Norton® Internet Security (OEM version)
LAN bandwidth management software

Operating System
Support for Windows 11 64-bit
Support for Windows 10 64-bit

Form Factor
Micro ATX Form Factor; 24.4cm x 24.4cm

Product Last Updated: 10/04/2026

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