First Picture of AMD B550 Motherboard Appears | TechPowerUp
Pictured below is a Micro-ATX format motherboard featuring two x16 PCIe 4.0 slots and one smaller, x1 slot. There are two DDR4 slots, along with M.2 PCIe 4.0 connector.
PCI-Express 4.0 là gì? Có nên nâng cấp SSD PCIe Gen4 x4
This particular motherboard incorporates three PCIe 3.0 x16 slots and four PCIe 3.0 x8 slots for super fast speeds and versatile system expansion.
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Expansion Slots, Riser options with up to 8 x PCIe 3.0, maximum of 4 x16 slots ; Operating System, No ; Compatible/Certified OS ...