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.

Specification

Product
Product id	795790
Brand	Lenovo
Partnr	4Y37A09730
EAN/UPC code	889488525034
Ports & interfaces
Supported storage drive interfaces	SAS, Serial ATA
Host interface	PCI Express x8
PCI Express slots version	4.0
Internal SAS ports	16
Performance
RAID levels	0, 1, 5, 6, 10, 50, 60
Data transfer rate	12 Gbit/s
SSD support	Y
Internal memory	8000 MB
Chipset	Broadcom SAS3916
JBOD function	Y
Number of devices supported	16
S. M. A. R. T. support	Y
System requirements
Linux operating systems supported	Y