Home › Product Specifications › Motherboards › Biostar

Biostar B550MX/E Pro

B550 · AM4 · Micro-ATX
Biostar B550MX/E Pro product image

General

ChipsetB550
SocketAM4
Form FactorMicro-ATX
Supported CPU FamiliesRyzen 3000, Ryzen 4000G, Ryzen 5000, Ryzen 5000G

Highlights

Memory4× DDR4 · max 128 GB · 4933 MT/s
M.2 Slots2×
GPU Slots2× x16 · PCIe 4.0
Fastest USBUSB 5 Gbps
NetworkLAN 1 Gbps
Power Stages4+1 phases · 46 A

Manufacturer Links

BIOS downloads ↗CPU support list ↗Driver downloads ↗Memory QVL ↗
Is this part compatible with your build?Analyze part compatibility together with PC Analysis.
Analyze in PC Builder

Memory

Memory TypeDDR4
Max RAM Speed4933 MT/s
Max RAM128 GB
DIMM Slots4
RAM Form FactorDIMM
ECC SupportYes

Expansion and Storage

PCIe Version4.0
PCIe x16 Slots2
PCIe x1 Slots1
PCIe Slot Modes
1× PCIe 4.0 x16
1× PCIe 3.0 x16 · electrical: x4
1× PCIe 3.0 x1
M.2 Slots
M.2_1: PCIe 4.0 x4 · SATA supported
M.2_2: PCIe 3.0 x4 · SATA supported
SATA Ports4
Highest USBUSB 5 Gbps
RAID0/1/10

Power Delivery (VRM)

Phase Layout4+1
CPU Phases4
SoC Phases1
Amps per Phase46 A
PWM ControllerRAA229004 (max. 8 phases)
MOSFET8x 46A 4C029N/4C028N (High-/Low-Side)

Connectivity and Audio

Audio CodecRealtek ALC897
LAN ChipRealtek RTL8111H (1Gb/s)
Rear I/O
2× USB 2.0 Type-A
4× USB 5Gbps Type-A
1× HDMI
1× 1 Gbps LAN
2× Wi-Fi antenna connector
4× Audio jacks (3.5 mm)
1× PS/2
Front Panel Headers
2× USB 2.0
4× USB-A 5Gbps
HD Audio (front audio)
Case Fan Headers3× 4-pin PWM fan
TPM HeaderYes
Special Features
All solid capacitors
Diagnostic LED (LED indicators)
White Build-compatible (PCB primarily black)