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Enabling multihost system architectures with PCI Express switches: Innovation in design through multiroot partitionable switch architecture - PICMG Systems and Technology
ONE STOP SYSTEMS PCIe x4 Gen2 10-port Switch
ExpressFabric PCIe Gen4.0 and Gen 3.0 Switch and Retimer Solutions
PCIe Switch and SAS Expander support for VMware vSAN ReadyNodes - Virtual Blocks Blog
Enabling Composable Platforms with On-Chip PCIe Switching, PCIe-over-Cable
Microchip's New PCIe 4.0 PCIe Switches: 100 lanes, 174 GBps