The 1-lane PCIe Gen 2 interface in Broadcom BCM2711 processor is exposed in Raspberry Pi CM4, and most carrier boards are exploiting the interface including the official Raspberry Pi Compute Module IO carrier board. But if you ever wanted to connect multiple PCIe cards to the CM4 IO board, Waveshare has got you covered with the PCIe-Packet-Switch-4P that provides four PCIe x1 slots through an ASMedia ASM1184e PCIe switch. PCIe-Packet-Switch-4P expansion board specifications: Compatible with Raspberry Pi Compute module 4 IO board 4x PCIe Gen 2 x1 expansion slots, compatible with PCIe Gen 1 x1 ASM1184e PCIe switch taking 1x PCIe x1 Gen2 upstream port to 4x PCIe x1 Gen2 downstream ports; no driver required, plug and play Power Supply 12V via PCIe interface or 12V via DC jack (or even 5V see warnings below) Dimensions – 82 x 39 mm There are some interesting warnings in the Chinese […]
Add four PCIe x1 slots to Raspberry Pi CM4 IO with Waveshare PCIe-Packet-Switch-4P board
