TSI721-16GCLY is a low-power, high-performance switched fabric PCI Express adapter for the Renesas R-Car SoC family. It is a x16 lane, support up to Gen 3 PCIe, and is compatible with the Renesas R-Car H1, H2 and M1 SoCs. It also supports simultaneous connection to multiple PCIe endpoints, allowing it to act as an in-between switch between multiple PCIe topology configurations and makes it ideal for high-density system designs. It supports various features like Non-Transparent Bridge (NTB) host, port-to-port bridges, downstream port emulation and host-side register access. It is also RoHS compliant.