MSI B550-A Pro (7C56-002R)


shape factorATX
chipsetAMD B550
CPU-CompatibilityRyzen 5000Ryzen 4000GRyzen 3000, without TDP limitation (Manufacturer-list)
VRM7 real phases (5+2), 12 virtual phases (10+2), PWM-Controller: IR35201 (max. 8 phases)
MOSFETs CPU10x 46A 4C029N/​4C024N
MOSFETs SoC4x 46A 4C029N/​4C024N
RAM4x DDR4 DIMM, dual PC4-35200U/​DDR4-4400 (OC), max. 128GB (UDIMM)
Extension slots1x PCIe 4.0 x16, 1x PCIe 3.0 x16 (x4), 2x PCIe 3.0 x1, 1x M.2/​M-Key (PCIe 4.0 x4/​SATA, 22110/​2280/​2260/​2242), 1x M.2/​M-Key (PCIe 3.0 x4, 2280/​2260/​2242)
external connectors1x HDMI 2.1 (iGPU), 1x DisplayPort 1.4 (iGPU), 1x USB-C 3.1 (B550), 1x USB-A 3.1 (B550), 2x USB-A 3.0, 4x USB-A 2.0, 1x Gb LAN (Realtek RTL8111H), 6x jack, 1x PS/​2 Combo
Internal connectors1x USB-C 3.0 Key-A Header, 1x USB 3.0 Header (2x USB 3.0), 2x USB 2.0 header (4x USB 2.0), 6x SATA 6Gb/s (B550), 1x TPM-Header, 1x Chassis Intrusion-Header
Header Cooling1x CPU fan 4-Pin, 6x fan 4-Pin, 1x fan/​pump 4-Pin
Header Lighting1x 4-Pin RGB (+12V/​G/​R/​B, max. 3A), 2x 3-Pin ARGB (+5V/​DATA/​GND, max. 3A)
buttons/SwitchesUSB BIOS Flashback (external), LED switch (internal)
Audio7.1 (Realtek ALC892)
Wirelessnot available
RAID level0/​1/​10 (B550)
Multi-GPUAMD 2-Way-CrossFireX (x16/​x4)
Power connections1x 24-Pin ATX, 1x 8-Pin EPS12V
Lightingnot available
BIOS1x 32MB (256Mb)
Special featuresaudio+solid capacitors, Diagnostic LED (LED indicators), 1x M.2-passive cooler
Warrantythree years (from date of manufacture, handling by merchant)
USB nomenclatureLink
Last price update
Listed since2020-05-22, 10:10



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