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HPE P47789-B21 storage controller card OCP NIC 3.0 form factor

HPE

HPE P47789-B21 Storage Controller Server Accessory

SKU CH-3Y76-PQW45 MPN P47789-B21

OCP NIC 3.0 storage controller with 2x8 LP SlimSAS ports supporting RAID 0, 1, 10 and 6G SATA, 12G SAS, 16G NVMe drives

  • Product typeStorage Controller
  • DetailsCache: MR216i-o = None Ports: MR216i-o = 2 × 8 LP SlimSAS RA
  • OCP NIC 3.0 form-factor fits modern servers
  • 2x8 LP SlimSAS ports connect up to 16 drives
  • RAID 0, 1, 10 protects critical data
  • Secure encrypted drive support meets compliance needs
  • MRSA, StorCLI, UEFI, Redfish simplify storage management

OCP NIC 3.0 Storage Controller

The HPE P47789-B21 is a storage controller built to the OCP NIC 3.0 form factor for server deployments. It connects drives through two 8-lane LP SlimSAS ports. The adapter supports 6G SATA, 12G SAS and 16G NVMe protocols. No onboard cache is included with this model.

Supported RAID Levels and Drive Security

This controller suits administrators who need RAID 0, 1 or 10 across mixed SATA, SAS and NVMe drives. It also supports secure encrypted drives for data-at-rest protection. Builds requiring RAID 5, 6 or higher levels must select a different controller. Environments that depend on hardware-backed write caching should consider other models.

Management Interfaces

The card is managed through MRSA, StorCLI, UEFI and Redfish interfaces. These tools cover configuration, monitoring and firmware updates across supported operating systems. Deployments that rely on a proprietary GUI not listed here will need an alternative solution.

How it compares

Measured against everything we stock in Drive Cages & Server Add-Ons, at today’s prices. Recalculated every night.

Price $446.99
Pricier than about 84% of the 1,119 comparable items (median $74.99).

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Specifications

Product
Brand nameHPE
Model nameP47789-B21
Product typeStorage Controller
Size & build
Shipping weight0.91 kg
Package size178 × 127 × 76 mm

Questions about this item

How do I install the P47789-B21 into an OCP 3.0 slot, and what is the common cabling mistake?

Align the controller with the OCP NIC 3.0 connector and seat it firmly until the latch clicks; the step often missed is attaching the 2x8 LP SlimSAS cables to the correct drive backplane ports before closing the chassis.

What maintenance or replacement will the MR216i-o controller need over time?

Since the MR216i-o has no cache module, there is no battery or capacitor to replace; only firmware updates via MRSA, StorCLI, UEFI or Redfish are required for ongoing maintenance.

Which interface limit appears first when the controller runs sustained mixed workloads?

The 6 Gbps SATA link saturates before the 12 Gbps SAS or 16 Gbps NVMe paths, making SATA drives the first bottleneck under continuous heavy I/O.

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