The ThinkSystem RAID 5350 Series internal RAID adapters have the following specifications:

PCIe 3.0 x8 host interface
12 Gbps SAS/SATA RAID controller, based on the Microsemi Adaptec SmartHBA 2100-8i
Cacheless (not upgradeable)
Connectivity for up to 8 internal SAS or SATA drives,
Support for intermixing SAS and SATA HDDs and SSDs. Mixing SAS and SATA drives in the same array is not supported. Mixing of HDDs and SSDs in the same array is not supported.
Support for intermixing of 12 Gbps and 6 Gbps drives.
Support for RAID 0, 1, 10, and 5
Support for JBOD (non-RAID, known as “raw” or “HBA mode” in Adaptec parlance) drive state
Support for up to 8 virtual drives
Support for logical drive sizes greater than 2 TB.
Configurable stripe size from 16 KB up to 1 MB
Supports 512e, 512n and 4K sector formatted drives
S.M.A.R.T. support
Performance of up to 1.7M random read IOPS with extremely low-latency 4 KB I/Os




Lenovo Press - https://lenovopress.com/lp1438-thinksystem-raid-5350-8i-adapter