



Motherboard Gigabyte B550M DS3H AC R2 AM4
- CPU socket
- AM4
- Chipset (MB)
- AMD B550 MB
- Form factor
- Micro ATX
- Supported memory
- DDR4
- Number of memory slots
- 4
Description
Gigabyte B550M DS3H AC R2 AM4 is a micro ATX motherboard for AM4, aimed at a stable mid-range Ryzen build with a good balance between price, features, and upgrade potential. The AMD B550 chipset gives you access to modern features and PCIe 4.0 support with a suitable CPU, while the built-in Wi‑Fi 5 and Bluetooth 5.0 save the need for additional cards. With up to 128 GB DDR4 RAM and high OC frequencies, the motherboard can easily handle more serious tasks beyond standard gaming. The Micro ATX form factor allows for a more compact case without cutting back on essential expansion capabilities.
What you get
The four DDR4 memory slots with support for dual-channel mode and frequencies up to 4733+ MHz (OC) give you enough flexibility – you can start with 16/32 GB and later easily reach 128 GB without changing the motherboard. The two M.2 slots cover both PCIe 4.0 NVMe SSD (with a suitable Ryzen 5000/3000 CPU) and more accessible PCIe 3.0 and SATA SSD – convenient if you want a fast system disk plus a second one for games or work. For mass storage, you have 4 x SATA3 6.0 Gb/s and RAID 0/1/10 support, which helps both speed and redundancy/security for data. The built-in audio with Realtek ALC1220 and S/PDIF Out is more than enough for gaming, movies, and music without needing a separate sound card. The built-in Wi‑Fi 5 (802.11ac), Bluetooth 5.0, and Gigabit LAN cover all scenarios – from stable wired connections to wireless use in a more compact build.
- Support for AM4 processors with AMD B550 chipset, which is a good base for Ryzen gaming and productivity builds.
- Micro ATX form factor, suitable for smaller cases, but with enough expansion slots and connectors.
- Four DDR4 RAM slots with dual-channel mode, up to 128 GB and frequencies up to 4733+ MHz (OC) for higher bandwidth.
- Two M.2 slots (M2A_CPU and M2B_SB), supporting PCIe 4.0 x4/x2 or PCIe 3.0 and SATA SSD depending on the used Ryzen processor.
- Main PCI Express x16 slot, operating in PCIe 4.0 x16 or PCIe 3.0 x16 mode depending on the CPU, plus one more x16 (x4) and one x1 for additional cards.
- Built-in audio with Realtek ALC1220, supporting 2/4/5.1/7.1-channel and S/PDIF Out for better sound quality and easy connection to a receiver.
- Built-in Wi‑Fi 5, Bluetooth 5.0, and Realtek GbE LAN (1000/100 Mbit), giving you the choice between wireless and wired networks without additional adapters.
- 4 x SATA3 6.0 Gb/s with support for RAID 0, 1, 10 for flexible storage configurations focusing on speed or security.
- Rear I/O panel with HDMI and DisplayPort (depending on the video output supported by the CPU), 4 x USB 3.2 Gen 1, 2 x USB 2.0, RJ‑45, audio jacks, and antenna connectors.
- Enough power for the system with 24-pin main and 8-pin CPU connector for stable operation under load.
Who it is suitable for
This motherboard is suitable if you are building a compact gaming or all-round Ryzen build with the option for fast NVMe storage and future RAM upgrades. It is also suitable for budget to mid-range work configurations where you want Wi‑Fi, Bluetooth, and good sound without additional cards. If you are looking for extreme overclocking or multiple GPU slots for specific workloads, there are more niche ATX options available.
The most sensible aspect here is the combination of B550, two M.2 slots, serious RAM capacity, and built-in Wi‑Fi/BT in a compact micro ATX body. You get a balanced foundation for a modern Ryzen build, without unnecessary extras and without cutting important features.
Full specifications
- Manufacturer
-
Gigabyte
- CPU socket
-
AM4
- Chipset (MB)
- AMD B550
- Form factor
- Micro ATX
- Supported memory
-
DDR4
- Number of memory slots
- 4
- Maximum RAM capacity
- 128 GB
- Memory frequency (MHz)
-
up to 4733+ (OC)
- Support for dual-channel memory
- Yes
- Built-in audio
-
Realtek® ALC1220 codecHigh Definition Audio2/4/5.1/7.1-channelSupport for S/PDIF Out
- Built-in Wi-Fi
-
Wi-Fi 5 (802.11ac)
- Bluetooth version
- Bluetooth V5.0
- Built-in LAN
-
Realtek GbE LAN chip (1000/100 Mbit)
- SATA interface
- 4 x SATA3 6.0 Gb/s
- RAID support
- 0,1,10
- M2 slot
-
1 x M.2 connector (M2A_CPU), integrated in the CPU, supporting Socket 3, M key, type 2280 SSDs:AMD Ryzen™ 5000/3000 Series Processors support SATA and PCIe 4.0x4/x2 SSDsAMD Ryzen™ 5000 G/4000 G/3000 G Series 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 2280 SATA and PCIe 3.0 x2 SSDs
- Expansion slots
-
1 x PCI Express x16 slot (PCIEX16), integrated in the CPU:AMD Ryzen™ 5000/3000 Series Processors support PCIe 4.0 x16 modeAMD Ryzen™ 5000 G/4000 G/3000 G Series Processors support PCIe 3.0x16 mode*The PCIEX16 slot can only support a graphics card or an NVMe SSD. If only one graphics card is to be installed, be sure to install it in the PCIEX16 slot.Chipset:1 x PCI Express x16 slot (PCIEX4), supporting PCIe 3.0 and running at x41 x PCI Express x1 slot (PCIEX1), supporting PCIe 3.0 and running at x1
- Power connector
-
1 x 24-pin1 x 8-pin
- Processor generation
-
3rd generation4th generation5th generation
- Warranty
- 36 months
- OS
-
Support for Windows 10 and 11 64-bit
- USB ports
-
CPU:- 4 x USB 3.2 Gen 1 ports on the back panelChipset:- 1 x USB Type-C® port with USB 3.2 Gen 1 support, available through the internal USB header- 2 x USB 3.2 Gen 1 ports available through the internal USB header- 4 x USB 2.0/1.1 ports (2 ports on the back panel, 2 ports available through the internal USB header)
- Rear I/O panel
-
2 x USB 2.0/1.1 ports1 x PS/2 keyboard/mouse port1 x HDMI port (Note)1 x DisplayPort (Note)4 x USB 3.2 Gen 1 ports1 x RJ-45 port2 x antenna connectors3 x audio jacks(Note) Actual support may vary by CPU.
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