HP 726815-002 4GB FWBC Cache Module for Smart Array P440/P840

Overview
The HP 726815-002 4GB FWBC (Flash Write-Back Cache) module is a high-performance cache solution designed specifically for the HP Smart Array P440 and P840 RAID controllers. This compact, plug-in module accelerates write-intensive workloads by temporarily storing data in fast flash memory before it is written to disk, delivering improved I/O response times and enhanced overall system efficiency.

Key Features

• 4 GB of high-speed flash write-back cache for rapid data buffering
• Optimized for HP Smart Array P440 and P840 controllers
• Reduces write latency and improves throughput for critical applications
• Easy installation with a standard PCIe slot form factor
• Built-in error-correction and data integrity checks
• Low power consumption compared to traditional disk-based caching

Technical Specifications

• Model/Part Number: 726815-002
• Cache Capacity: 4 GB (FWBC)
• Interface: PCIe 2.0 x4
• Form Factor: Low-profile, hot-plug capable
• Operating Temperature: 0°C to 55°C (32°F to 131°F)
• Power Draw: Approx. 5 W
• Compatibility: HP Smart Array P440 and P840 RAID controllers only

Applications
The HP 4GB FWBC Cache Module is ideal for environments where fast write performance is critical. Typical use cases include:

• Database servers handling high transaction volumes
• Virtualization platforms with intensive VM provisioning and migration
• Enterprise email and messaging systems
• Backup and archival solutions that require rapid data staging
• High-performance computing (HPC) workloads that demand low latency

By integrating this cache module, organizations can achieve lower I/O latency, higher application responsiveness, and a more efficient use of existing storage resources, ultimately delivering a smoother user experience and better ROI on their HP infrastructure.