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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

  • ProcessorSupport AMD Ryzen 5000 Series/ Ryzen 5000 G-Series/ Ryzen 40
  • ChipsetAMD B550
  • Form factorMicro ATX
  • CPU socketAM4
  • Memory slot count4 × 288pin (DDR4)
  • Supported memorySupport DDR4 4733(O.C.) / 4600(O.C.) / 4400(O.C.) / 4266(O.C

Model B550M AORUS ELITE

  • 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.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $118.99
Cheaper than about 70% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameGIGABYTE
Model nameB550M AORUS ELITE
Processor
ProcessorSupport AMD Ryzen 5000 Series/ Ryzen 5000 G-Series/ Ryzen 4000 G-Series / Ryzen 3000 Series Processors
CPU socketAM4
ChipsetAMD B550
Memory
Memory slot count4 × 288pin (DDR4)
Supported memorySupport 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
Max supported RAMSupports up to 128 GB (32 GB single DIMM capacity)
Memory channelsDual Channel
ECC supportYes
BufferingUn-buffered
Storage
SATA ports4 x SATA 6Gb/s
M.2 slots1 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 and RAID support0/1/10
Connectivity
Maximum network speedRealtek GbE LAN chip (10/100/1000 Mbit)
Ports & slots
PCIe 4.0 x16 slots1 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
PCIe x1 slots1 x PCI Express x1 slot (PCIEX1), integrated in the Chipset:
Supporting PCIe 3.0 x1 mode
Rear panel 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 USB headers1 x USB 3.2 Gen 1 header
1 x USB 2.0/1.1 header
Size & build
Form factorMicro ATX
Width and length9.6 in × 9.6 in
Shipping weight1.09 kg
Package size274 × 269 × 70 mm
Compatibility
Windows 11 supportSupported

Other versions of this model

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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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