Brands Guides About
HP 462864-B21 P410/512 BBWC Smart Array Controller — main product image
HP

HP 462864-B21 P410/512 BBWC Smart Array Controller

★★★★★3.8 (16 reviews)

An 8-port SAS RAID controller with 512MB battery-backed cache for dependable server storage management.

$110.99*
✓ In Stock on Amazon.com
View on Amazon

*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

The HP Smart Array P410 is an 8-port SAS RAID controller built for HP ProLiant servers that need reliable storage management with data protection. Equipped with 512MB of ECC DDR2 SDRAM and a battery-backed write cache, the P410 safeguards in-flight write operations against power loss while boosting write performance through intelligent caching. The controller connects via a PCI Express x8 interface and supports data transfer rates up to 300MBps across its two internal mini-SAS SAS 300 connectors, accommodating both SAS and SATA drives in a single array.

Supporting RAID levels 0, 1, 1+0, and 5, the P410 covers the essential configurations for performance-oriented striping, simple mirroring, and parity-based fault tolerance. It integrates with HP's Array Configuration Utility and SmartStart tools for straightforward setup and ongoing monitoring. While this is a legacy controller best suited for ProLiant G6 and G7 series servers, it remains a practical and cost-effective option for maintaining or upgrading storage in existing deployments where these platforms are still in service.

Key Features

SAS/SATA

Specifications

Brand
HP
Model
462864-B21
Controller Type
SAS RAID
Ports
8
Cache Memory
512 MB ECC DDR2 SDRAM
Cache Protection
Battery-Backed Write Cache (BBWC)
Interface
PCI Express x8
Data Transfer Rate
300 MBps
Internal Connectors
2x Mini-SAS SAS 300
Supported Interfaces
SAS / SATA

Pros & Cons

👍 Pros

  • 512MB battery-backed write cache protects pending writes during power failures.
  • Supports both SAS and SATA drives through two internal mini-SAS connectors.
  • PCI Express x8 interface delivers up to 300MBps data transfer throughput.
  • 512MB ECC DDR2 SDRAM ensures reliable cache memory with error correction.
  • Proven reliability in HP ProLiant server environments with broad OS support.

👎 Cons

  • Legacy controller limited to 300MBps transfer rates, well below modern SAS-3 or NVMe speeds.
  • Only supports RAID 0, 1, 1+0, and 5 — RAID 6 requires the more expensive P410i or P411.
  • Designed for older HP ProLiant G6/G7 servers and may not fit current-generation systems.
  • Battery backup unit has a finite lifespan and will eventually need replacement.

Frequently Asked Questions

The P410 features two internal mini-SAS connectors supporting up to 8 SAS or SATA drives, suitable for small to mid-range server storage configurations.
It supports RAID 0, 1, 1+0, and 5, covering the most common configurations for performance striping, mirroring, and parity-based redundancy.
The 512MB BBWC preserves cached write data in the event of a power failure, protecting data integrity during unexpected outages and improving write performance during normal operation.
It connects via a PCI Express x8 slot, which is standard in HP ProLiant and similar enterprise servers of its generation.
The P410 is designed for HP ProLiant G6 and G7 series servers. It is a legacy controller and is not intended for current-generation hardware.

Related Products