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4Y37A09733

Lenovo ThinkSystem RAID 940-32i 8GB Flash PCIe 4.0 x8 12Gb Adapter

Lenovo - Lenovo 4Y37A09733 ThinkSystem RAID 940-32i 8GB Flash PCI-e 4.0 x8 12GB Adapter, Broadcom SAS3916 + Controller Chip, 12Gb SAS Port Interface, 32 Ports, Four x8 SFF-8654 Port connectors, 8GB Cache
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Prices, images and descriptions are for reference purposes only & may change without prior notice. PLEASE RELY ON ABOVE DESCRIPTIONS AND NOT ON IMAGES. 4Y37A09733 Lenovo ThinkSystem RAID 940-32i 8GB Flash PCIe 4.0 x8 12Gb Adapter is available from Laptop Direct and it is sold as new from our Controllers : RAID range of products. For reference purposes, the price of R30250 is valid 2026-10-23, and while stocks last, may be valid until . The price displayed is a guide for reference purposes only, and may change without prior notice. Reference prices are an invitation for potential buyers to make an offer to purchase, which we may reject without reason. A quote with final pricing is sent before a purchase can be made. T&C's apply. E&OE. Laptop Direct. You are looking at products found in the Controllers : RAID category.
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Specification for the entire series

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4Y37A09733

Lenovo ThinkSystem RAID 940-32i 8GB Flash PCIe 4.0 x8 12Gb Adapter

Lenovo 4Y37A09733 ThinkSystem RAID 940-32i 8GB Flash PCI-e 4.0 x8 12GB Adapter, Broadcom SAS3916 + Controller Chip, 12Gb SAS Port Interface, 32 Ports, Four x8 SFF-8654 Port connectors, 8GB Cache

Overview Summary:

The Lenovo ThinkSystem RAID 940-32i 8GB PCIe 4.0 adapter is a high-performance storage controller built for demanding enterprise environments. With support for up to 32 SAS or SATA drives and advanced RAID levels, it delivers reliable data protection and optimized performance for modern server infrastructures. Its PCIe 4.0 x8 interface ensures fast data throughput, making it ideal for businesses that require efficient and scalable storage solutions.

Designed for IT professionals and system integrators, this RAID controller offers robust management features, flash-backed cache protection, and flexible drive support. Whether upgrading existing systems or building new server deployments, this adapter provides the reliability and speed needed for critical workloads. Buy now to enhance your storage performance and ensure data integrity, or shop now to upgrade your enterprise infrastructure with confidence.

What tier does this fall into?

Enterprise-grade

What is this best for?

data centre storage management, server RAID configuration, enterprise backup systems, high-speed data processing, storage expansion

Overview:

The Lenovo ThinkSystem RAID 940-32i is engineered for enterprise environments that require consistent storage performance, high scalability, and flexible drive management. Built on PCIe 4.0 architecture, this RAID controller delivers fast data throughput and dependable operation for modern server workloads. It integrates a Broadcom SAS3916 controller and supports up to 32 internal drives, making it well suited for data-intensive applications such as virtualization, database systems, and large-scale storage deployments.

Description:

The Lenovo ThinkSystem RAID 940-32i (Part Number 4Y37A09733 ) is a high-performance PCIe 4.0 RAID controller designed to manage up to 32 internal SAS or SATA drives with 12Gb/s throughput. It includes 8GB of flash-backed cache for improved data acceleration and reliability, along with advanced RAID support including levels 0, 1, 10, 5, 50, 6, and 60. With enterprise-grade management tools and flexible drive compatibility, it provides a robust solution for optimizing storage performance, ensuring data protection, and simplifying system administration in demanding server environments.

Features:

High-Performance RAID Architecture
Designed as part of the ThinkSystem RAID 940 family, this adapter leverages RAID-on-chip technology to deliver efficient processing and reduced latency. The PCIe 4.0 x8 interface ensures high bandwidth availability, while the integrated 8GB flash-backed cache enhances read and write performance in demanding workloads.

The controller supports a wide range of RAID configurations, enabling organizations to balance redundancy, performance, and capacity based on workload requirements.

Connectivity and Expansion Capabilities
This model is optimized for large-scale internal storage configurations, offering direct connectivity to multiple drives through high-density connectors.

Key connectivity highlights include:

  • Support for up to 32 internal SAS or SATA drives
  • Four x8 SFF-8654 connectors for high-density cabling
  • 12Gb/s SAS interface for fast and reliable data transfer
  • Compatibility with both HDDs and SSDs, including self-encrypting drives

The adapter allows mixing of drive types and speeds across the system, providing flexibility for tiered storage strategies, although mixed configurations are not supported within the same RAID array.

Advanced Data Protection and RAID Support
The RAID 940-32i provides a comprehensive set of RAID levels to accommodate different use cases, from performance-focused striping to fault-tolerant parity configurations.

Supported RAID levels:

  • RAID 0, 1, 10 for performance and redundancy balance
  • RAID 5 and 50 for efficient capacity with fault tolerance
  • RAID 6 and 60 for enhanced data protection in large arrays

Additional capabilities include:

  • JBOD mode for direct disk access
  • Support for up to 240 virtual drives per controller
  • Logical drive sizes exceeding 2TB
  • Configurable stripe sizes up to 1MB

Cache and Data Integrity Technologies
The integrated 8GB flash-backed cache plays a critical role in maintaining performance consistency while safeguarding data during unexpected power loss.

Core data integrity and acceleration elements:

  • CacheVault flash protection for data persistence
  • FastPath acceleration for SSD performance optimization
  • Support for TRIM and UNMAP commands to maintain SSD efficiency
  • S.M.A.R.T. monitoring for proactive drive health management

Management and Deployment Flexibility
The controller is designed to integrate seamlessly into enterprise environments with multiple configuration and monitoring options.

Supported management tools:

  • XClarity Provisioning Manager (UEFI)
  • XClarity Controller web interface
  • XClarity Administrator configuration patterns
  • StorCLI command-line interface
  • LSI Storage Authority graphical interface
  • UEFI Human Interface Infrastructure

These tools enable administrators to deploy, configure, and maintain storage systems efficiently across different environments.

Technical Summary

  • Model: ThinkSystem RAID 940-32i 8GB
  • Part Number / SKU: 4Y37A09733
  • Form Factor: PCIe FHHL
  • Host Interface: PCIe 4.0 x8
  • Controller Chip: Broadcom SAS3916 with SAS35x36R expander
  • Port Interface: 12Gb SAS
  • Ports: 32 internal
  • Connectors: Four x8 SFF-8654
  • Cache: 8GB flash-backed
  • Drive Support: SAS and SATA HDDs and SSDs
  • RAID Levels: 0, 1, 10, 5, 50, 6, 60
  • JBOD Support: Yes
  • Maximum Devices: 32
  • Hot-Swap Support: Yes
  • Encryption: SED support with SafeStore

Use Case Positioning
This RAID controller is best suited for enterprise servers that require scalable internal storage, high availability, and predictable performance. It fits well in environments handling virtualization, transactional databases, and large file systems where both speed and data protection are critical.

By combining high port density, strong RAID capabilities, and enterprise-grade management tools, the ThinkSystem RAID 940-32i delivers a balanced solution for modern data center storage demands.


Specifications:

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Specificationsspacer
Product Code4Y37A09733spacer
Feature RAID 940-32i 8GB
Adapter type RAID controller
Part number 4Y37A09733
Form factor PCIe FHHL
Controller chip Broadcom SAS3916 +
SAS35x36R expander
Broadcom equivalent MegaRAID 9560-32i 8G
Host interface PCIe 4.0 x8
Port interface 12 Gb SAS
Number of ports 32
Port connectors Four x8 SFF-8654
Tri-Mode support No
Drive interface SAS, SATA
Drive type HDD, SED, SSD
Hot-swap drives Yes
Max devices 32
RAID levels 0, 1, 10, 5, 50, 6, 60
JBOD mode Yes
Cache 8GB (Standard)
CacheVault cache protection with Flash Yes
Performance Accelerator (FastPath) Yes
SSD Caching (CacheCade Pro 2.0) No
SED support Yes (SafeStore)

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