The Innosilicon SSIC PHY is fully compliant, and can run up to 5 Gb/s while still supporting the lower data rates of HS-GEAR1, HS-GEAR2 and PWM-GEAR1. By stripping off all the legacy USB overhead, this PHY is both small and low power. Leveraging the existing PIPE3 interface allows existing USB3.0 controllers and software stacks to be reused, which lowers design overhead.