14 | Chapter 2: Hardware installaon
2.5 Expansion Slots
PEX16_1: PCI-Express (Gen3/ Gen4) x16 Slot
A520MH:
• PCI-Express 3.0 compliant. Theorecal maximum bandwidth using two slots
simultaneously is 16GB/s for each slot, a total of 32GB/s.
• Supports PCIe 3.0 x16 mode with AMD® Ryzen™ processors. (Masse only)
• Supports PCIe 3.0 x16 mode AMD® Ryzen™ with Radeon Vega Graphics processors.
(Renoir only)
B550MH:
• PCI-Express 3.0 compliant. Theorecal maximum bandwidth using two slots
simultaneously is 16GB/s for each slot, a total of 32GB/s.
• PCI-Express 4.0 compliant. Theorecal maximum bandwidth using two slots
simultaneously is 32GB/s for each slot, a total of 64GB/s. (Masse Only)
• Supports PCIe 4.0 x16 mode with AMD® Ryzen™ processors. (Masse only)
• Supports PCIe 3.0 x16 mode AMD® Ryzen™ with Radeon Vega Graphics processors.
(Renoir only)
PEX1_1/ PEX1_2: PCI-Express (Gen3) x1 Slot
• PCI-Express 3.0 compliant.
• Data transfer bandwidth up to 1GB/s per direcon; 2GB/s in total.
Note
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PCIe4.0speedisonlyapplicabletoAMD®Ryzen™3rdGenMasse,andwillhavedierentspeeds
accordingtodierentCPUs.