Lenovo RAID 940-8I 8GB Flash PCIe 4.0 SAS RAID Controller

The Lenovo 4Y37A09729 is a PCIe 4.0 SAS RAID controller that brings reliable hardware RAID to Lenovo rack and tower servers. Powered by the Broadcom SAS3908 processor and equipped with 8GB of flash-backed cache, it helps safeguard data while boosting throughput for workflows that cannot afford delays or unexpected downtime.

With support for RAID levels 0, 1, 5, 6, 10, 50, and 60, as well as JBOD mode, the card lets administrators balance redundancy and performance in a way that fits each workload. Whether you are configuring a high-performance database cluster, a virtualization host that juggles multiple virtual machines, or a file server that handles large sequential transfers, the controller adapts easily to changing demands.

The PCIe 4.0 interface delivers up to 12 Gb/s per SAS lane, so solid-state drives and high-capacity hard disks can run at their full potential. The flash-backed cache preserves data that has not yet reached the drives if power is lost, giving peace of mind in environments where uninterrupted availability is critical.

Certified support for Windows Server, Red Hat Enterprise Linux, SuSE Linux Enterprise Server, and VMware ESXi makes the card a dependable choice for mixed operating system data centers. Administrators can deploy the same controller across a variety of platforms, streamline spares inventory, and rely on robust driver support.

Overall, the Lenovo 4Y37A09729 suits IT teams that need a straightforward path to data protection without compromising speed, from growing midsize businesses to established enterprises modernizing their storage back end.

Highlights:

• 8GB flash-backed write cache maintains data integrity during power loss
• Broadcom SAS3908 RAID-on-chip processor handles intensive workloads
• PCIe 4.0 host interface with 12 Gb/s SAS connectivity for rapid data movement
• Flexible RAID options: 0, 1, 5, 6, 10, 50, 60, plus JBOD
• Validated for Windows Server, Red Hat, SuSE, and VMware ESXi deployments