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Micro-ATX motherboard, black PCB with silver heatsinks, AM4 socket, four DDR4 slots, dual M.2, PCIe 4.0 x16 slot, rear I/O with HDMI

GIGABYTE

GIGABYTE B550M AORUS ELITE AMD motherboard

SKU CH-Y339-28WR0 MPN B550M AORUS ELITE

Micro-ATX AM4 board supporting Ryzen 5000 and 3000 series with DDR4 up to 4733 MT/s, dual M.2 slots, PCIe 4.0 x16 and Realtek GbE LAN

  • CPU Socket TypeAM4
  • CPU TypeSupport AMD Ryzen 5000 Series/ Ryzen 5000 G-Series/ Ryzen 40
  • ChipsetAMD B550
  • Number of Memory Slots4x288pin (DDR4)
  • Memory StandardSupport DDR4 4733(O.C.) / 4600(O.C.) / 4400(O.C.) / 4266(O.C
  • Maximum Memory SupportedSupports up to 128 GB (32 GB single DIMM capacity)

Option B550M AORUS ELITE

Struck-through versions exist but are not stocked here.

  • Supports AMD Ryzen 5000 and 3000 Series processors for modern performance
  • Dual-channel DDR4 up to 128 GB with ECC for stable multitasking
  • PCIe 4.0 x16 slot enables latest graphics cards and NVMe SSDs
  • Dual M.2 connectors with PCIe 4.0 and 3.0 for fast storage expansion
  • Realtek GbE LAN with bandwidth management for reliable wired networking

AM4 Micro-ATX for Ryzen 5000 and 3000

This Micro-ATX board uses the AMD B550 chipset and AM4 socket. It supports Ryzen 5000 Series, 5000 G-Series, 4000 G-Series and Ryzen 3000 Series processors. The form factor fits smaller cases while keeping four memory slots and dual M.2 connectors.

Straightforward install with BIOS flash button

The board follows standard Micro-ATX mounting points and a typical 24-pin plus 8-pin power layout. A rear Q-Flash Plus button lets you update the BIOS without a CPU or memory installed, which avoids the most common issue where a new processor will not post on an older firmware revision.

128 GB DDR4 and dual PCIe 4.0 M.2

Four DDR4 slots accept up to 128 GB total with 32 GB per DIMM and speeds to DDR4 4733(O.C.). The primary M.2 slot runs PCIe 4.0 x4 from the CPU with Ryzen 5000 or 3000 chips, while the chipset-linked slot runs PCIe 3.0 x4. Four SATA 6 Gb/s ports remain available when both M.2 sockets are populated.

Highlights

  • Supports AMD Ryzen 5000 and 3000 Series processors for modern performance
  • Dual-channel DDR4 up to 128 GB with ECC for stable multitasking
  • PCIe 4.0 x16 slot enables latest graphics cards and NVMe SSDs
  • Dual M.2 connectors with PCIe 4.0 and 3.0 for fast storage expansion
  • Realtek GbE LAN with bandwidth management for reliable wired networking

Specifications

BrandGIGABYTE
ModelB550M AORUS ELITE
CPU Socket TypeAM4
CPU TypeSupport AMD Ryzen 5000 Series/ Ryzen 5000 G-Series/ Ryzen 4000 G-Series / Ryzen 3000 Series Processors
ChipsetAMD B550
Number of Memory Slots4x288pin (DDR4)
Memory StandardSupport 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
Maximum Memory SupportedSupports up to 128 GB (32 GB single DIMM capacity)
Channel SupportedDual Channel
ECC SupportedYes
Buffer SupportedUn-buffered
Memory FeatureSupport for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules*
* ECC memory (ECC mode) support varies by CPU
Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules
Support for Extreme Memory Profile (XMP) memory modules
PCI Express 4.0 x161 x PCI Express x16 slot (PCIEX16), integrated in the CPU:
AMD Ryzen 5000 Series and Ryzen 3000 Series Processors support PCIe 4.0 x16 mode
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 x PCI Express x16 slot (PCIEX4), integrated in the Chipset:
Supporting PCIe 3.0 x4 mode
PCI Express x11 x PCI Express x1 slot (PCIEX1), integrated in the Chipset:
Supporting PCIe 3.0 x1 mode
Serial ATA (SATA)4 x SATA 6Gb/s
M.21 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 SSDs
AMD Ryzen Ryzen 5000 G-Series and Ryzen 4000 G-Series Processors support SATA and PCIe 3.0 x4/x2 SSDs
1 x M.2 connector (M2B_SB), integrated in the Chipset, supporting Socket 3, M key, type 2242/2260/2280 SSDs:
Supporting SATA and PCIe 3.0 x2 SSDs
SATA RAID0/1/10
Audio ChannelsRealtek Audio CODEC
High Definition Audio
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.
Max LAN SpeedRealtek GbE LAN chip (10/100/1000 Mbit)
Back I/O Ports1 x PS/2 keyboard/mouse port
1 x DVI-D port
1 x HDMI port
4 x USB 3.2 Gen 1 ports
4 x USB 2.0/1.1 ports
1 x RJ-45 port
3 x audio jacks
1 x Clear CMOS jumper
1 x Q-Flash Plus button
Onboard USB1 x USB 3.2 Gen 1 header
1 x USB 2.0/1.1 header
Other Connectors1 x CPU fan header
2 x system fan headers
2 x addressable LED strip headers
2 x RGB LED strip headers
1 x CPU cooler LED strip/RGB LED strip header
2 x M.2 Socket 3 connectors
4 x SATA 6Gb/s connectors
1 x front panel header
1 x front panel audio header
1 x Trusted Platform Module (TPM) header (2x6 pin, for the GC-TPM2.0_S module only)
1 x serial port header
Form FactorMicro ATX
Dimensions (W x L)9.6" x 9.6"
Power Pin1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector
*All fan headers are subject to support AIO_Pump, Pump and high performance fan with the capability of delivering up to 2A/12V @ 24W.
Windows 11Supported
FeaturesSupport 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
Fast Boot
ON/OFF Charge
RGB Fusion
Smart Backup
System Information Viewer
Support for Q-Flash Plus
Support for Q-Flash
Support for Xpress Install
Shipping weight1.09 kg
Package size274 × 269 × 70 mm

Other versions of this model

4 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will my existing DDR4-3200 memory run at its rated speed on this board?

Yes — the board supports DDR4-3200 natively and DDR4-4733 with overclocking, so 3200 modules will operate at their rated frequency.

Can I use a Ryzen 5000-series CPU without a BIOS update?

The board includes Q-Flash Plus, allowing a BIOS update without a CPU installed, so you can prepare it for Ryzen 5000-series processors before first boot.

How many M.2 NVMe drives can I install and at what speed?

Two M.2 slots are provided; the CPU-linked slot supports PCIe 4.0 x4 with Ryzen 5000 or 3000 series CPUs, while the chipset-linked slot runs at PCIe 3.0 x4.

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