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Motherboards

B550 AORUS PRO

Model B550 AORUS PRO

AMD B550 ATX motherboard for Socket AM4 processors, with 4 DDR4 slots (up to 128 GB) and 2.5 GbE LAN.

Socket
AM4
Chipset
AMD B550
Form factor
ATX
Memory
4 x DDR4, up to 128 GB
LAN
2.5 GbE
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Overview Specifications Media Platform and pairing Support
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Overview

Highlights

  • Supports AMD Ryzen 5000 Series/ Ryzen 5000 G-Series/ Ryzen 4000 G-Series/ Ryzen 3000 and Ryzen 3000 G-Series Processors
  • Dual Channel ECC/ Non-ECC Unbuffered DDR4, 4 DIMMs
  • 12+2 Phases Digital VRM Solution with 50A DrMOS
  • Thermal design with Fins-Array Heatsink and Direct Touch Heatpipe
  • Ultra Durable PCIe 4.0 Ready x16 Slot
  • Dual NVMe PCIe 4.0/3.0 x4 M.2 with Thermal Guards

Platform

Socket
AM4
Chipset
AMD B550
Form factor
ATX 30.5 x 24.4 cm
Memory
DDR4
  • 4 DIMM slots
  • Up to 128 GB
  • Up to 5400 MHz (OC)
Dual channel
Processor support
  • AMD Ryzen 5000 series
  • Ryzen 5000 G-series
  • Ryzen 4000 G-series, Ryzen 3000 series and Ryzen 3000 G-series processors
Expansion slots
  • 1 x PCIe x16 slot, up to PCIe 4.0 at x16
  • 1 x PCIe x16 slot, PCIe 3.0 at x4
  • 1 x PCIe x16 slot, PCIe 3.0 at x2
  • 2 x PCIe x1 slots
Storage
2 x M.2
  • 6 x SATA 6Gb/s
Fastest M.2 slot: PCIe 4.0 x4
LAN
  • Realtek 2.5GbE LAN (2.5 Gbit/1 Gbit/100 Mbit)
Wireless
Not included
Display outputs
1 x HDMI For processors with integrated graphics
Power inputs
  • 24-pin ATX
  • 1 x 8-pin ATX 12V

At a glance

Platform
AMD
Socket
AM4
Chipset
B550
Form factor
ATX
Memory
DDR4
Series
AORUS
Full specifications

Specifications

Platform

CPU
AMD Socket AM4, support for: AMD Ryzen 5000 Series/ Ryzen 5000 G-Series/ Ryzen 4000 G-Series, Ryzen 3000 Series and Ryzen 3000 G-Series Processors
Chipset
AMD B550
Memory
4 x DDR4 DIMM sockets supporting up to 128 GB (32 GB single DIMM capacity) of system memorySupport for DDR4 5400(O.C.) / 5300(O.C.) / 5200(O.C.) / 5100(O.C.) / 4800(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 modulesDual channel memory architectureSupport for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules** ECC memory (ECC mode) support varies by CPUSupport for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modulesSupport for Extreme Memory Profile (XMP) memory modules

Graphics and audio

Onboard graphics
Integrated Graphics Processor:1 x HDMI port, supporting a maximum resolution of 4096x2160@60 Hz* Support for HDMI 2.1 version, HDCP 2.3, and HDR.Maximum shared memory of 16 GB
Audio
Realtek ALC1220-VB codec* The back panel line out jack supports DSD audio.High Definition Audio2/4/5.1/7.1-channelSupport for S/PDIF Out

Networking

LAN
Realtek 2.5GbE LAN chip (2.5 Gbit/1 Gbit/100 Mbit)

Expansion and storage

Expansion slots
1 x PCI Express x16 slot (PCIEX16), integrated in the CPU:AMD Ryzen 5000 Series* and Ryzen 3000 Series Processors support PCIe 4.0 x16 modeAMD 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 x PCI Express x16 slot (PCIEX4), integrated in the Chipset:Supporting PCIe 3.0 x4 mode* The M2B_SB connector shares bandwidth with the PCIEX4 slot. The PCIEX4 slot will become unavailable when an SSD is installed in the M2B_SB connectors.1 x PCI Express x16 slot (PCIEX2), integrated in the Chipset:Supporting PCIe 3.0 x2 mode* The PCIEX2 slot shares bandwidth with the SATA3 4, 5 connectors. The PCIEX2 slot will become unavailable when a device is installed in the SATA3 4 or SATA3 5 connector.2 x PCI Express x1 slots
Storage interface
1 x M.2 connector (M2A_CPU), integrated in the CPU, supporting Socket 3, M key, type 2242/2260/2280/22110 SSDs:AMD Ryzen 5000 Series and Ryzen 3000 Series Processors support SATA and PCIe 4.0 x4/x2 SSDsAMD Ryzen Ryzen 5000 G-Series and Ryzen 4000 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 2242/2260/2280/22110 SSDs:Support PCIe 3.0 x4/x2 SSDs6 x SATA 6Gb/s connectors, integrated in the Chipset:Support for RAID 0, RAID 1, and RAID 10

Ports and connectors

USB
CPU:3 x USB 3.2 Gen 1 ports on the back panel1 x USB 3.2 Gen 2 Type-A port (red) on the back panelChipset:1 x USB Type-C port on the back panel, with USB 3.2 Gen 2 support1 x USB 3.2 Gen 2 Type-A port (red) on the back panel2 x USB 3.2 Gen 1 ports available through the internal USB header2 x USB 2.0/1.1 ports on the back panelChipset+2 USB 2.0 Hubs:8 x USB 2.0/1.1 ports (4 ports on the back panel, 4 ports available through the internal USB headers)
Internal I/O connectors
1 x 24-pin ATX main power connector1 x 8-pin ATX 12V power connector2 x M.2 Socket 3 connectors6 x SATA 6Gb/s connectors1 x CPU fan header1 x water cooling CPU fan header4 x system fan headers2 x system fan/water cooling pump headers1 x CPU cooler LED strip/RGB LED strip header2 x addressable LED strip headers2 x RGB LED strip headers1 x front panel header1 x front panel audio header1 x USB 3.2 Gen 1 header2 x USB 2.0/1.1 headers1 x Trusted Platform Module (TPM) header (2x6 pin, for the GC-TPM2.0_S module only)2 x temperature sensor headers1 x Thunderbolt add-in card connector1 x Clear CMOS jumper
Back panel connectors
1 x HDMI port3 x USB 3.2 Gen 1 ports1 x USB Type-C port, with USB 3.2 Gen 2 support2 x USB 3.2 Gen 2 Type-A ports (red)6 x USB 2.0/1.1 ports1 x Q-Flash Plus button1 x RJ-45 port1 x optical S/PDIF Out connector5 x audio jacks
I/O controller
iTE I/O Controller Chip

Firmware and software

H/W monitoring
Voltage detectionTemperature detectionFan speed detectionWater cooling flow rate detectionOverheating warningFan fail warningFan speed control* Whether the fan (pump) speed control function is supported will depend on the fan (pump) you install.
BIOS
1 x 256 Mbit flashUse of licensed AMI UEFI BIOSPnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
Unique features
Support for APP Center@BIOSEasyTuneFast BootGame BoostON/OFF ChargeRGB FusionSmart BackupSystem Information ViewerSupport for Q-Flash PlusSupport for Q-FlashSupport for Xpress Install
Bundle software
Norton Internet Security (OEM version)XSplit Gamecaster + Broadcaster (12 months licence)Realtek 8125 Gaming LAN Bandwidth Control Utility
Operating system
Support for Windows 11 64-bitSupport for Windows 10 64-bit

Board

Form factor
ATX Form Factor; 30.5cm x 24.4cm

Specifications are taken from the manufacturer's published information and may change. Confirm critical values with our sales desk before ordering.

GIGABYTE product page

Media

Photos 3

Downloads

Official information

GIGABYTE product page for B550 AORUS PRO gigabyte.com

Platform and pairing

Processor and memory

Supplied by brand rather than listed by model. Name the part you need in your enquiry.

Graphics cards

A spread of current cards, from top tier to entry level. Each card page lists its length and recommended power supply.

All 68 graphics cards

Power supplies

Ratings from 400 W to 3000 W. This board's power inputs: 24-pin ATX and 1 x 8-pin ATX 12V. Size the supply to the recommended PSU of the graphics card you fit.

All 229 power supplies

CPU coolers for AM4

Coolers whose specifications list socket AM4.

All 8 CPU coolers
  • GIGABYTE GP-GIGABYTE GME 240

    GIGABYTE

    GAMING 240

    GP-GIGABYTE GME 240

    • 240 mm
    • 2 x 120 mm
    • Intel 1851/1700/115X/1200, AMD AM5/AM4
    View details
  • GIGABYTE GP-GIGABYTE GME 240I

    GIGABYTE

    GAMING 240 ICE

    GP-GIGABYTE GME 240I

    • 240 mm
    • 2 x 120 mm
    • Intel 1851/1700/115X/1200, AMD AM5/AM4
    View details
  • GIGABYTE GP-GIGABYTE EAGLE 360

    GIGABYTE

    EAGLE 360

    GP-GIGABYTE EAGLE 360

    • 360 mm
    • 3 x 120 mm
    • Intel 1851/1700/115X/1200, AMD AM5/AM4
    View details

Cabinets for ATX boards

Cabinets whose specifications list ATX motherboard support.

All 10 cabinets

Parts to plan with this motherboard

Check sockets, memory type, power connectors and dimensions against the specifications before ordering, or ask our sales desk to confirm a build.

Support

Warranty and repairs

Warranty is as per GIGABYTE’s terms for this model. For products bought from us, call our service team with the invoice number, the model and the product’s serial number.

From GIGABYTE

Practical notes

  1. Update the BIOS only from the official support page, following the brand’s instructions.
  2. Check the CPU support list for the BIOS version before buying a processor.
  3. Install chipset, LAN and audio drivers from the official support page.

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Pairs with

GIGABYTE B550 AORUS PRO 1 / 3