ThinkSystem RAID 545-8i PCIe Gen4 12Gb Internal Adapter
The ThinkSystem RAID 545-8i PCIe Gen4 12Gb Internal Adapter, based on the SAS3808 controller, is a high-performance PCIe-to-SATA/SAS storage adapter. The SerDes technology enables operation of SAS and SATA storage devices in a single drive bay. A single controller can operate in two modes concurrently: SAS and SATA. The adapter negotiates between the speeds and the protocols to recognize and concurrently interface with these two storage device types.

More information about the adapter is available at the following site:
Installation and User Guide
The Installation and User Guide is available in PDF format: