In a Reddit discussion about a Best Buy system with an ASRock B550A motherboard, Hallock specifically pointed out that this board uses a PCI Express 3.0 "Promontory-LP" (e.g. X470, B450) chipset specifically for use in pre-built systems (e.g. OEM customers). His comment suggests there's still hope for PCI Express 4.0 for the mainstream market.
No, it has a B550A motherboard. This is a version of the PCIe Gen 3 "Promontory-LP" (e.g. X470, B450) chipset specifically for use in pre-built systems (e.g. OEM customers).We'll learn more later this year.
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OEMs are customers, too, and they may have different needs and wants than a DIYer. Not every product decision is considered through the lens of a channel product.
Via: ComputerBase