HPE MR416i-o Gen11 x16 Lanes 8GB Cache OCP SPDM Storage Controller

The HPE P47781-B21 is a Gen11 storage controller that mounts in the OCP NIC 3.0 slot and gives your server 8 GB of dedicated cache along with a 16-lane PCIe Gen4 path to the processor. It is built for administrators who need predictable performance when virtual machines, databases, and backup jobs all hit the disks at once.

The card handles up to 240 drives and allows you to mix SATA at 6 G, SAS at 12 G, and NVMe at 16 G within the same storage pool. That breadth is valuable if you are migrating from legacy spinning disks to solid-state media or if you run a tiered setup with cold, warm, and hot data.

Hardware RAID levels 0, 1, 5, 6, 10, 50, and 60 provide data protection, while pass-through mode is available when your hypervisor needs direct access to the drives. In RAID5 workloads the controller can deliver up to 240 000 IOPS, and in random write tests it has reached three million IOPS, so latency stays low even during rebuilds or heavy snapshot activity.

Two LP SlimSAS ports give you flexible cabling options inside dense chassis. Because the card follows the OCP NIC 3.0 specification, all primary PCIe slots remain open for GPUs, high-bandwidth network adapters, or other accelerator cards.

The firmware is validated with Windows Server, Red Hat Enterprise Linux, VMware vSphere, and other mainstream platforms, reducing the time you spend tracking down drivers and compatibility notes.

Install it in a virtualized cluster that needs high IOPS for VDI, a backup target that writes continuous streams, or a database node that cannot afford pauses during rebuilds. Wherever you need fast, protected storage in an HPE ProLiant Gen11 environment, this controller fits naturally.

Highlights:

• 8 GB cache for fast reads and writes
• PCIe Gen4 interface with 16 lanes
• Connects up to 240 SATA, SAS, or NVMe drives
• Hardware RAID 0, 1, 5, 6, 10, 50, and 60, plus pass-through mode
• Up to 240 000 RAID5 IOPS and three million random write IOPS
• OCP NIC 3.0 form factor keeps main PCIe slots free
• Two LP SlimSAS ports for flexible internal cabling
• Certified for Windows Server, Red Hat, VMware, and more
• Three-year parts-only warranty included