Compare MSI MAG B550 vs MSI A520 vs ROG Zenith II Extreme
Variants
Storage
For Gamers
For Pros
Connectivity
CPU Socket
AM4
AMD Socket AM4
SRTX4
Expansion Slot
1x PCIe 4.0 x16 + 1x PCIe 3.0 x16 + 2x PCIe 3.0 x1
[Storage] 4x SATA III + 1x M.2
PCI Express
1x X16 + 2x X1 Gen3
4x PCIe 4.0 (x16, x16/x16, x16/x8/x16, or x16/x8/x16/x8)
Ports
[Front] 1x USB-C 3.2 Gen1, 1x USB 3.2 Gen1, 2x USB 2.0 | [Rear] 1x PS/2, 1x DP, 1x 2.5G LAN (RJ45), 1x USB 3.2 Gen2, 1x HD Audio, 2x USB 2.0, 1x HDMI, 2x USB 3.2 Gen1, 1x USB-C 3.2 Gen1, 1x Optical S/PDIF [Graphics] 1x HDMI 2.1 + 1x DisplayPort
[Front] 2x USB-A + 4x USB-A + 1x serial | [Rear] 1x Realtek RTL81111H Gigabit LAN + 4x USB-A + 2x USB-A + 3x HD audio + 1x DP + 1x HDMI
[Front] 2x USB 3.2 Gen2 + 1x Front panel audio | [Rear] 1x Optical S/PDIF + 5x Audio jacks + 1x Intel I211-AT 1Gbps LAN + 1x Aquantia 10Gbps LAN + 1x USB 3.2 Gen2x2 + 9x USB 3.2 Gen2 + 8x USB 3.2 Gen1 + 3x USB 2.0
Wireless Connectivity
WiFi 6 + Bluetooth 5.0
Construction
Form Factor
M-ATX
Extended ATX (E-ATX) motherboard
Dimensions
Size | Length
30.5 cm
310 mm / 12.2 inch
Size | Width
24.4 cm
277 mm / 10.9 inch
Display
Display Diagonal
1.77 inch
Display Type
OLED
Function
Audio
Realtek ALC1200 Codec, 7.1-channel
SupremeFX8-Channel High Definition Audio CODEC S1220
Chipset
AMD B550 Chipset
AMD A520 Chipset
AMD TRX40
Compatibility
3rd Gen AMD Ryzen Desktop Processors and AMD Ryzen 4000 G-Series Desktop Processors
DAC
ESS ESS9018Q2C
Graphics
Supports 2-Way AMD CrossFire Technology
[Multi-GPU] Support 3-way SLI or CrossFireX
Operating System
Windows 10
Processor
Support 3rd Gen AMD Ryzen Desktop Processors and AMD Ryzen4000 G-Series Desktop Processors
Supports AMD Ryzen Threadripper processors
RGB Lighting
Aura Sync RGB lighting
Performance
Memory | Capacity
2 DIMMs, up to 64 GB dual channel
8x DIMM, Max 256GB
Memory | Type
4x DDR4 2667 - 4866+ MHz non-ECC
DDR4 2667/ 2800 /2933 /3000 /3066 /3200 /3466 /3600/ 3733 /3866 /4000 /4133 /4266 /4400/ 4600+ MHz
Quad channel DDR4 3200MHz, overclockable to 4733MHz ECC or non-ECC
Storage
RAID 0, RAID 1 M.2 NVMe / RAID 0, RAID 1, RAID 10 SATA
RAID 0/1/10 support
8x SATA III + 5x M.2 SATA or PCIe 4.0 x4 NVMe
Production
Debut
2020-08-18
2019
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