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MSI B550 Gaming Gen3 AM4 ATX Motherboard - OPENED BOX 75193 (B550 GAMING GEN3-75193)

MSI B550 Gaming Gen3 AM4 ATX Motherboard - OPENED BOX 75193 (B550 GAMING GEN3-75193)
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  • AMD-AM4-MSI-B550-Gaming-Gen3-AM4-ATX-Motherboard-5
  • AMD-AM4-MSI-B550-Gaming-Gen3-AM4-ATX-Motherboard-4
  • AMD-AM4-MSI-B550-Gaming-Gen3-AM4-ATX-Motherboard-3
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  • Product Name:
    MSI B550 Gaming Gen3 AM4 ATX Motherboard - OPENED BOX 75193 (B550 GAMING GEN3-75193)
  • Model Number:
    B550 GAMING GEN3-75193
  • Brand:
  • Manufacturer Warranty:
    1 Year


Icon  Product condition:  OPENED BOX
This item is in excellent, new or like-new condition with no or minimal wear, Depending on the manufacturer or supplier, this item is either covered by original manufacturer’s warranty or three months standard warranty provided by MSY. This item may be missing the original packaging or protective wrapping, or may be in the original packaging but not sealed, but we guarantee the item is well-packed with sufficient protection during order collection or delivery. This item may be missing original or minor accessories but we will provide necessary components to make sure the major element(s) is/are fully functional.




Supports AMD Ryzen™ 5000 Series, 5000 G-Series, 4000 G-Series, and 3000 Series processors Processor socket AM4


* See supported processors


AMD® B550 Chipset


4x DDR4 memory slots, supporting up to 128GB

Supports 1866/ 2133/ 2400/ 2667/ 2800/ 2933/ 3000/ 3066/ 3200 MHz by JEDEC

Supports DDR4 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 3600/ 3733/ 3866/ 4000/ 4133/ 4266/ 4400+ MHz by A-XMP OC MODE

1DPC 1R max speed 4400 MHz

1DPC 2R max speed 3733 MHz

2DPC 1R max speed 3866 MHz

2DPC 2R max speed 3466 MHz

Dual channel memory architecture

Supports non-ECC UDIMM memory

Supports ECC UDIMM memory (non-ECC mode)

Supports un-buffered memory


* Please refer for more information on compatible memory.

* See supported memory

Expansion slots

2x PCIe x16 slots

PCI_E1 slot (From CPU)

Supports PCIE 3.0 x16

PCI_E4 (From B550 chipset)

Supports PCIe 3.0 x4

4x PCIe x1 slots

PCI_E2, E3, E5 and E6 slots (From B550 chipset)

Supports PCIe 2.0 X1


* PCI_E4 will run x1 speed when installing devices in PCI_E2/ PCI_E3/ PCI_E5 slot.


Supports AMD CrossFire™ Technology

Onboard graphics

1x DVI-D port, support a maximum resolution of 1920x1200 @60Hz

1x HDMI™ 2.0b port, supports a maximum resolution of 4096x2160 @30Hz, 2560x1600 @60Hz

Maximum shared memory of 16 GB


* Available only on processors featuring integrated graphics.

* Graphics specifications may vary depending on the CPU installed.

SATA ports

6x SATA 6Gb/s ports (From B550 chipset)

M.2 SSD slots

1x M.2 slot (Key M)

M2_1 slot (From CPU)

Supports PCIe 3.0 x4

Supports SATA 6Gb/s

Supports 2260/ 2280/ 22110 storage devices


Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices


Realtek® ALC897 Codec

7.1-Channel High Definition Audio


1x Realtek® RTL8111H LAN controller

Power connectors

1x 24-pin ATX main power connector

1x 8-pin ATX 12V power connector

Internal USB connectors

1x USB 3.2 Gen 1 5Gbps connector (From B550 chipset)

Supports additional 2 USB 3.2 Gen 1 5Gbps ports

2x USB 2.0 connectors (From B550 chipset)

Supports additional 4 USB 2.0 ports

Fan connectors

1x 4-pin CPU fan connector

1x 4-pin water-pump fan connector

4x 4-pin system fan connectors

System connectors

1x Front panel audio connector

2x System panel connectors

1x Chassis Intrusion connector

1x TPM module connector

1x Serial port connector

1x Parallel port connector


1x Clear CMOS jumper

Led features

2x 4-pin RGB LED connectors

4x EZ Debug LED

Back panel ports

Keyboard / Mouse

USB 3.2 Gen 1 5Gbps Type-A


Audio Connectors

Flash BIOS Button

USB 2.0



USB 3.2 Gen 2 10Gbps Type-A

I/O controller

NUVOTON NCT6797 Controller Chip

Hardware monitor

CPU/ System/ Chipset temperature detection

CPU/ System/ Pump fan speed detection

CPU/ System/ Pump fan speed control

Form factor

ATX Form Factor

12 in. x 9.6 in. (30.5 cm x 24.4 cm)

Bios features

1x 256 Mb flash


ACPI 6.1, SMBIOS 2.8



MSI Center


Google Chrome™, Google Toolbar, Google Drive

Norton™ Internet Security Solution

Box content

B550 GAMING GEN3 Motherboard

I/O Shield

2 x SATA Cables

MSI Case Badge

Quick Installation Guide

Product Registration Card




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