GIGABYTE B550M DS3H AC

CPU

1. AMD Socket AM4, support for: AMD Ryzen™ 5000 Series/ Ryzen™ 5000 G-Series/ Ryzen™ 4000 G-Series and Ryzen™ 3000 Series Processors

Chipset

1. AMD B550

Memory

1. 4 x DDR4 DIMM sockets supporting up to 128 GB (32 GB single DIMM capacity) of system memory
2. Support for DDR4 4733(O.C.) / 4600(O.C.) / 4400(O.C.) / 4266(O.C.) / 4133(O.C.) / 4000(O.C.) / 3866(O.C.) / 3733(O.C.) / 3600(O.C.) / 3466(O.C) / 3400(O.C.) / 3200 / 2933 / 2667 / 2400 / 2133 MHz memory modules
3. Dual channel memory architecture
4. Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules*
   * ECC memory (ECC mode) support varies by CPU
5. Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules
6. Support for Extreme Memory Profile (XMP) memory modules

Onboard Graphics

1. 1 x DVI-D port, supporting a maximum resolution of 1920x1200@60 Hz
   * The DVI-D port does not support D-Sub connection by adapter.
2. 1 x HDMI port, supporting a maximum resolution of 4096x2160@60 Hz
   * Support for HDMI 2.1 version, HDCP 2.3, and HDR.

Audio

1. Realtek® Audio CODEC
2. High Definition Audio
3. 2/4/5.1/7.1-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.

LAN

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

Wireless Communication module

1. WIFI 802.11a/b/g/n/ac, supporting 2.4/5 GHz Dual-Band
2. BLUETOOTH 4.2
3. Support for 11ac wireless standard and up to 433 Mbps data rate
   * Actual data rate may vary depending on environment and equipment.

Expansion Slots

1. AMD Ryzen™ 5000 Series and Ryzen™ 3000 Series Processors support PCIe 4.0 x16 mode
2. AMD Ryzen™ Ryzen™ 5000 G-Series and Ryzen™ 4000 G-Series 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. Supporting PCIe 3.0 x4 mode

1. Supporting PCIe 3.0 x1 mode

Storage Interface

1. AMD Ryzen™ 5000 Series and Ryzen™ 3000 Series Processors support SATA and PCIe 4.0 x4/x2 SSDs
2. AMD Ryzen™ Ryzen™ 5000 G-Series and Ryzen™ 4000 G-Series Processors support SATA and PCIe 3.0 x4/x2 SSDs

1. Supporting SATA and PCIe 3.0 x2 SSDs

1. Support for RAID 0, RAID 1, and RAID 10

USB

1. 4 x USB 3.2 Gen 1 ports on the back panel

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

Internal I/O Connectors

1. 1 x 24-pin ATX main power connector
2. 1 x 8-pin ATX 12V power connector
3. 1 x CPU fan header
4. 2 x system fan headers
5. 2 x addressable LED strip headers
6. 2 x RGB LED strip headers
7. 1 x CPU cooler LED strip/RGB LED strip header
8. 2 x M.2 Socket 3 connectors
9. 4 x SATA 6Gb/s connectors
10. 1 x front panel header
11. 1 x front panel audio header
12. 1 x USB 3.2 Gen 1 header
13. 1 x USB 2.0/1.1 header
14. 1 x Trusted Platform Module (TPM) header (2x6 pin, for the GC-TPM2.0_S module only)
15. 1 x serial port header
16. 1 x Clear CMOS jumper
17. 1 x Q-Flash Plus button

Back Panel Connectors

1. 1 x PS/2 keyboard/mouse port
2. 1 x DVI-D port
3. 2 x SMA antenna connectors (1T1R)
4. 1 x HDMI port
5. 4 x USB 3.2 Gen 1 ports
6. 4 x USB 2.0/1.1 ports
7. 1 x RJ-45 port
8. 3 x audio jacks

I/O Controller

1. iTE® I/O Controller Chip

H/W Monitoring

1. Voltage detection
2. Temperature detection
3. Fan speed detection
4. Overheating warning
5. Fan fail warning
6. Fan speed control
   * Whether the fan speed control function is supported will depend on the cooler you install.

BIOS

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

Unique Features

1. 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.
   @BIOS
   EasyTune
   ON/OFF Charge
   RGB Fusion
   Smart Backup
   System Information Viewer
2. Support for Q-Flash Plus
3. Support for Q-Flash
4. Support for Xpress Install

Bundled Software

1. Norton® Internet Security (OEM version)
2. LAN bandwidth management software

Operating System

1. Support for Windows 11 64-bit
2. Support for Windows 10 64-bit

Form Factor

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

Remark

1. Due to different Linux support condition provided by chipset vendors, please download Linux driver from chipset vendors' website or 3rd party website.
2. Most hardware/software vendors may no longer offer drivers to support Win9X/ME/2000/XP. If drivers are available from the vendors, we will update them on the GIGABYTE website.