Please suggest suitable products, the customer's application is to combine 2 PCIe x4 from PCH into one PCIe x8 for PCIE SLOT.
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Unfortunately, this would be accomplished using a packet switch, which we do not have for PCIe Gen4; however, it is interesting that two 1x4 PCIe ports are available from this chipset.
Based on what I can find online, it should be able to natively support a two 1x8 links, and it doesn't support two 1x4 links as described. So the customer may not need a switch.
No, I do not. We only have one packet switch, which is the XIO3130. This switch only supports PCIe Gen1 speeds, and we do not develop packet switches anymore.
At PCIe Gen4 and PCIe Gen5 speeds we have retimers, redrivers, and muxes.