Gigabyte B840M DS3H Motherboard Socket AM5 / Micro ATX

The GIGABYTE B840M DS3H is a compact Micro-ATX motherboard designed for modern AMD Ryzen systems. Built on the AMD B550 chipset with Socket AM5, it supports next-generation processors and DDR5 memory, delivering reliable performance for gaming, productivity, and everyday computing.

The board features durable Ultra Durable™ components, high-quality VRM design, PCIe 4.0 support for graphics cards and NVMe SSDs, and multiple connectivity options including USB 3.2 ports and Gigabit LAN. With its balanced feature set and compact form factor, it is ideal for mainstream gaming and workstation builds.

Technical Specifications:



Chipset: AMD B550




Socket: AM5




Form Factor: Micro-ATX




CPU Support: AMD Ryzen (AM5 series)




Memory: 4× DDR5 DIMM slots




Max Memory Capacity: up to 128 GB




PCIe Slots: 1× PCIe x16 (PCIe 4.0), 1× PCIe x1




Storage: 2× M.2 (PCIe NVMe), 4× SATA 6 Gb/s




LAN: Gigabit Ethernet




Audio: 7.1-channel HD Audio




USB Ports: USB 3.2 Gen1 / USB 2.0




Internal Headers: RGB / ARGB support




BIOS: UEFI DualBIOS




Operating System Support: Windows 10 / 11