| Type | RAID Storage Controller Card |
| Form Factor | Plug-in card |
| Processor | Broadcom SAS3908 |
| Bus Type | PCIe 4.0 x8 |
| Buffer Size | 4 GB |
| Power Requirements | 11.5 W maximum |
| Manufacturer | Lenovo |
| Manufacturer Part Number | 4Y37A78836 |
| UPC | 889488634767 |
| Warranty | 1-year limited warranty |
Lenovo RAID 940-8E 4GB FL Storage Controller PCIe 4.0 x8
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- SATA / SAS 12Gb/s interface ensures high-speed data transfer
- PCIe 4.0 x8 connectivity for maximum throughput
- 4 GB cache buffer supports faster I/O operations
- Broadcom SAS3908 RAID processor for efficient RAID management
- Supports RAID levels 0, 1, 5, 6, 10, 50, 60 and JBOD
- Advanced features include CacheVault protection, RAID Migration, and Patrol Read
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Shipping & Returns
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Key Benefits
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- Enterprise-grade RAID controller optimized for Lenovo ThinkSystem servers ensures seamless integration and maximum compatibility
- Flexible support for major OS platforms and hypervisors provides deployment versatility across different IT environments
- Comprehensive feature set including CacheVault and Online Capacity Expansion delivers high data protection and future scalability
Product Overview
The Lenovo RAID 940-8E 4GB FL is a professional-grade plug-in RAID storage controller engineered for PCIe 4.0 x8 interfaces and supports SATA/SAS drives at 12Gb/s. With 8 external channels and a 4GB cache buffer, it ensures fast data access and robust RAID performance. Powered by the Broadcom SAS3908 processor, it supports multiple RAID configurations such as RAID 0, 1, 5, 6, 10, 50, 60, and JBOD.
Advanced features include Online Capacity Expansion, RAID Level Migration, CacheVault protection, and compatibility with technologies like TRIM, S.M.A.R.T., FastPath, and SafeStore. The controller is designed to fully integrate with Lenovo ThinkSystem Servers and supports a broad range of OS environments including Linux, Windows Server, Ubuntu, and VMware ESXi.
Ideal for data centers and enterprise deployments, this controller offers high-speed connections via dual Mini SAS HD ports and delivers strong ROI via improved data access, better system uptime, and future-ready scalability.
Specifications
Product Overview
Advanced Storage & RAID Features
| RAID Levels Supported | RAID 0, 1, 5, 6, 10, 50, 60, JBOD |
| Advanced Features | Online Capacity Expansion (OCE), Online RAID Level Migration (RLM), CacheVault flash cache protection, Disk Data Format (DDF) support, S.M.A.R.T. monitoring, TRIM, FastPath I/O acceleration, SafeStore encryption key management, UNMAP support, consistency check, fast initialization, Patrol Read, hot spare support |
Physical & Environmental
| Dimensions (W x D) | 6.6 in x 2.7 in |
| Max Operating Temperature | 131 °F (55 °C) |
| Min Operating Temperature | 50 °F (10 °C) |
| Humidity Range Operating | 5% to 90% (non-condensing) |
Cloud Management & Licensing
| Management Interface | Lenovo XClarity, RAID Web Console |
| Cloud Integration | Compatible with Lenovo XClarity Controller (XCC2) |
| Licensing Model | No additional licensing required for standard RAID functions |
Interfaces
| Host Bus Interface | PCIe 4.0 x8 |
| Interface Type | SATA / SAS 12 Gb/s |
| External Interface Ports | 2 x 36-pin Mini SAS HD (SFF-8644) |
| Data Transfer Rate | 12 Gbit/s |
| Channel Quantity | 8 external |
| Supported Drives | SATA HDD, SAS HDD, SSD |
Supported Platforms & OS Compatibility
| Compatible Servers | ThinkSystem SR530, SR550, SR570, SR590, SR630, SR630 V2, SR635, SR645, SR650, SR650 V2, SR655, SR665, SR670, SR670 V2, SR850, SR850 V2, SR850P, SR860, SR860 V2, SR950, ST550, ST650 V2; Storage D1212, D1224, D3284 |
| Supported Operating Systems | Windows Server 2019, Windows Server 2022, RHEL 7.7 to 9.0, SUSE Linux Enterprise Server 12 SP3-SP5, SLES 15 SP1-SP3 (with/without Xen), Ubuntu 18.04.5 LTS, Ubuntu 20.04 LTS, VMware ESXi 6.7 U3, 7.0 U2/U3 |
Compliance & Origin
| Country of Origin | |
| TAA Compliant | |
| Certifications & Compliance | FCC CFR47 Part 15 B Class B, ICES-003 Class B, VCCI V-3, EN55022, EN55024, RoHS, WEEE, IEC/EN/UL 60950, AS/NZS CISPR 22, CNS 13438 |
Advanced Security Features
| Data Protection | SafeStore encryption-enabled drive support with secure key management |
| Boot Security | SecureBoot supported |
