A full stack-up example for a 4-layer board is provided in the 2021 appendix.
: USB 3.2 Gen 2 (formerly 3.1 Gen 2) supporting bandwidth up to 10Gbps . It is backward compatible with USB 3.2 Gen 1, High Speed, and Full Speed. rtl9210b datasheet 2021
The datasheet explicitly warns that absolute maximum ratings for the 1.05V internal regulator should not be exceeded for more than 10 ms during power-on sequencing. Failure to follow this leads to latch-up in the PCIe PHY. A full stack-up example for a 4-layer board
Unlike some budget bridge chips, it natively supports TRIM commands and SMART health monitoring, which are essential for maintaining SSD longevity. The datasheet explicitly warns that absolute maximum ratings
interface that allows the controller to automatically detect and switch between USB-to-PCIe and USB-to-SATA modes depending on the installed drive. Power Management
: Supports standard AHCI (Advanced Host Controller Interface) for SATA SSDs.