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Gigabyte B840M DS3H Motherboard - AMD B840 Socket AM5 brings a compact, feature-rich platform for modern AMD Ryzen systems, built around the AMD B840 chipset and Socket AM5.
This micro ATX motherboard supports AMD Ryzen 7000, 8000 and 9000 Series processors on Socket AM5, delivering compatibility with current and future AM5 CPUs for versatile builds.
Memory support is robust with four DIMM slots for DDR5-SDRAM in dual-channel configuration, supporting up to 256 GB total and per-slot capacities to 64 GB. Max supported memory clocks reach up to 8200 MHz for high-frequency kits and unbuffered, non‑ECC modules.
Storage and expansion are generous for the form factor: two M.2 slots (PCIe 4.0) plus four SATA III ports let you install up to six drives (HDDs and SSDs), and RAID 0, 1 and 10 are supported for performance or redundancy. Expansion includes one PCIe 4.0 x16 slot and a PCIe 3.0 x16 slot for GPUs or add-in cards.
The rear I/O and onboard connectivity suit both gamers and professionals, featuring HDMI 2.1 and two DisplayPort 1.4 outputs (4096 x 2160 max), a 2.5 Gigabit Ethernet port driven by Realtek RTL8125, multiple USB ports including USB-C (USB 3.2 Gen1), PS/2 legacy support and a full 7.1-channel audio solution (Realtek ALC897).
Cooling and system management are well addressed with two CPU fan connectors, two chassis fan connectors, two water pump headers, RGB LED headers, and PC health monitoring for fan, temperature, voltage and water cooling. Power delivery includes a 24-pin ATX connector and an 8-pin EPS connector for stable CPU power.
This motherboard is an excellent choice for compact gaming rigs, home workstations, or productivity PCs where high-speed DDR5 memory, PCIe 4.0 storage and reliable networking are priorities. Its passive cooling design, micro ATX footprint and three-year warranty add practical value.
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