This item, P47781-B21, is the HPE option part number for the product described as MR416i-o Gen11 x16 Lanes 8GB Cache OCP SPDM Storage Controller. Further details below.
The HPE MR416i-o Gen11 x16 Lanes 8GB Cache OCP SPDM Storage Controller (P47781-B21) is designed to elevate your server's performance with robust RAID support. Compatible with a wide range of servers including DL320 Gen11/Gen12 and ML350 Gen11, this controller supports up to 240 storage devices, enhancing your storage capabilities. With SATA, SAS, and NVMe interfaces, and a generous 8GB buffer, achieve seamless data transmission and enhanced reliability.
HPE Option Part #: P47781-B21
HPE Spare Part #: P47952-001
PRODUCT SPECIFICATIONS FOR P47781-B21:
- Device Type: Storage controller (RAID) - plug-in card
- Host Bus: PCIe 4.0 x8
- Interface: SATA 6Gb/s / SAS 12Gb/s / PCIe 4.0 (NVMe)
- Buffer Size: 8 GB
- Supported Devices: Disk array (RAID)
- Channel Qty: 16
- Max Storage Devices Qty: 240
- RAID Level: RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID 50, RAID 60
- Interfaces: SATA 6Gb/s / SAS 12Gb/s / PCIe 4.0 (NVMe)
- Connections: 1 x PCIe 4.0 x8
- Software Included: StorCLI, UEFI System Utilities (storage configuration), HPE MR Storage Administrator
- OS Required: SUSE Linux Enterprise Server, Microsoft Windows Server, Red Hat Enterprise Linux, CentOS, Ubuntu, VMware ESXi
RESOURCES FOR P47781-B21
Quickspecs for P47781-B21COMPATIBLE WITH:
PROLIANT DL SERIES
PROLIANT ML SERIES
PROLIANT SYNERGY SERIES
** This list may not be complete. Contact us via Live Chat if you have any questions about compatibility.
FREQUENTLY ASKED QUESTIONS FOR P47781-B21:
- Which servers are compatible with the P47781-B21 controller?
The P47781-B21 is compatible with servers such as DL320 Gen11/Gen12, DL360 Gen11, and ML350 Gen11 among others. - What RAID levels does the P47781-B21 support?
The P47781-B21 supports RAID levels 0, 1, 5, 6, 10, 50, and 60 for flexible storage configurations. - What interfaces does the P47781-B21 offer?
It offers interfaces for SATA 6Gb/s, SAS 12Gb/s, and PCIe 4.0 (NVMe), providing versatile connectivity options.
HPE PARTSURFER INFO FOR P47781-B21
| Spare PN | Description | |
|---|---|---|
 | P47952-001 | SPS-PCA, MR416i-o Gen11 Controller |
Last Updated: 2026-08-23
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This product is warrantied against hardware failure for a period of 1 Year from the date of purchase. Before making a purchase, please take a moment to review our return policy below.
Returns
It is the customer's responsibility to verify compatibility with their machine(s) before placing an order. If an item is ordered by mistake, it can be returned for refund, minus a 25% restocking fee, within 5 business days of receipt. The cost of freight is not refundable.
Please be aware that factory-sealed equipment can only be returned if it remains unopened.
Defective Products
If you have received a defective part and your machine is still within the HPE warranty period, please initiate a warranty exchange by visiting the HPE Enterprise Support Center. Be sure to have the serial numbers of the defective drive and your server/storage array handy.
In case your hardware becomes defective during the Global One warranty period, but the HPE warranty has expired, you can return the product to us for a working replacement. You are responsible for the shipment of returned merchandise. However, we will cover the expense of Ground /Economy shipment for the replacement item(s).
Requesting an RMA
To initiate a return or warranty claim, please complete and submit the RMA Request Form.
