• PCIe 4.0 x8 host interface, also compatible with a PCIe 3.0 host interface
• 12 Gbps SAS/SATA RAID controllers, based on the Broadcom MegaRAID 9560 adapter family
• 4GB or 8GB of integrated flash-backed cache
• RAID 940-16i supports up to 16 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, 5, 50, 6 and 60 standard
• Support for JBOD (non-RAID) drive state
• Support for logical drive sizes greater than 2 TB
• Configurable stripe size up to 1 MB
• Supports 512e, 512n and 4K sector formatted drives
• Supports UNMAP command for SAS SSDs (JBOD and RAID volumes)
• Supports TRIM command for SATA SSDs (JBOD)
• Compliant with Disk Data Format (DDF) configuration on disk (CoD)
• S.M.A.R.T. support
• XClarity Provisioning Manager UEFI interface
• XClarity Controller web interface
• XClarity Administrator Configuration Patterns
• StorCLI command-line interface
• LSI Storage Authority (LSA) GUI interface
• UEFI Human Interface Infrastructure (HII)

The ThinkSystem RAID 940 family of PCIe 4.0 12 Gbps SAS RAID controllers are high-performance RAID-on-chip (ROC) adapters for connectivity to drives internal to the server. These adapters support RAID levels 0, 1, 10, 5, 50, 6 and 60, and include an extensive list of RAS and management features.

This product guide provides essential presales information to understand the ThinkSystem RAID 940-8i, 16i and 32i adapters and their key features, specifications, and compatibility. This guide is intended for technical specialists, sales specialists, sales engineers, IT architects, and other IT professionals who want to learn more about the adapters and consider their use in IT solutions.
Change History

Changes in the March 9, 2021 update:
- The adapters now support Tri-Mode, which allows U.3 NVMe drives to be connected - Features section
- The server support tables are now automatically updated (change history may not be updated) - Server support section

Introduction
The ThinkSystem RAID 940 family of PCIe 4.0 12 Gbps SAS RAID controllers are high-performance RAID-on-chip (ROC) server adapters for connectivity to drives internal to the server. These adapters support RAID levels 0, 1, 10, 5, 50, 6 and 60, and include an extensive list of RAS and management features.