HPE Smart Array P816i-a SR Gen10 RAID SAS 12Gb/s 16-Port Controller 836261-004

Here is the complete, professional English product datasheet and technical profile for the HPE Smart Array controller.

HPE Smart Array P816i-a SR Gen10 12Gbps 16-Port SAS/SATA Modular Controller

Product Overview:

The 836261-004 (with Option Part Number 804338-B21) is an enterprise-class, high-performance Smart Array Gen10 storage controller. It features 16 internal SAS/SATA lanes across 4×4 internal ports, an integrated 4GB Flash-Backed Write Cache (FBWC), and is bundled with the HPE Smart Array SR Secure Encryption license. Built in the “a” (Flexible/Modular Slot) form factor, this controller provides maximum storage scalability, advanced RAID capabilities, and premium performance features without consuming a standard PCIe expansion slot.

Key Technical Specifications

Parameter	Specification Details
HPE Option Part Number	804338-B21
HPE Spare Part Number	836261-004
Assembly Part Number	804335-001
Interface Speed	12Gb/s SAS per lane / 6Gb/s SATA per lane
Number of Ports/Lanes	16 Internal SAS/SATA physical lanes across 4 x4 internal ports
Cache Memory	4 GB Flash-Backed Write Cache (FBWC)
Form Factor	Type-a Flexible/Modular Smart Array Controller (Does not occupy a PCIe slot)
RAID Levels Supported	RAID 0, 1, 5, 6, 10, 50, 60, 1 ADM, 10 ADM (Advanced Data Mirroring)
Drive Types Supported	12G SAS, 6G SATA (HDD, SSD, and Dual-Port)
PCIe Interface	PCIe 3.0 x8 host interface

Performance & Security Features

Premium Data Security: Includes the HPE Smart Array SR Secure Encryption enterprise-class license, providing a controller-based data-at-rest encryption solution for all drives connected to the controller.
4GB FBWC: Uses flash memory instead of older battery-backed cache systems. In the event of a sudden power loss, data cached in the 4GB buffer is instantly written to non-volatile flash memory via a supercapacitor unit (HPE Smart Storage Battery, sold separately).
HPE Smart Array SR SmartCache: Includes a built-in caching license that allows high-speed SSDs to act as a cache pool for slower HDD volumes, significantly boosting read/write IOPS for hot data workloads.
Mixed Mode Operation: Simultaneously supports RAID logical drives and HBA (Host Bus Adapter) pass-through mode on a single controller, allowing flexible deployment options.