Dell PERC H755 SAS/SATA PCIe 4.0 RAID Controller with 8GB NV Cache

The Dell PERC H755 is a high-performance 8-port SAS 12Gb/s and SATA 6Gb/s RAID controller built on PCIe 4.0 with 8GB of Non-Volatile (NV) cache for persistent write-cache protection. Designed for Dell PowerEdge 15th generation servers, it delivers enterprise-grade RAID performance with low-profile form factor flexibility.

Key Features

• 8GB NV Cache for persistent write-cache protection without a battery
• PCIe 4.0 host interface for double the bandwidth of PCIe 3.0
• Supports RAID 0, 1, 5, 6, 10, 50, and 60
• Low-profile form factor for dense server chassis
• Optimized for Dell PowerEdge 15th generation platforms

Product Specifications

• Part Number: P4X7G
• Manufacturer: Dell
• OEM Status: OEM
• Model: PERC H755
• Ports: 8 Internal
• Protocol: SAS 12Gb/s / SATA 6Gb/s
• Interface: PCIe 4.0
• Cache: 8GB NV (Non-Volatile)
• RAID Levels: 0, 1, 5, 6, 10, 50, 60
• Form Factor: Low Profile

Interface Specifications

• Drive Connectors: 2x SFF-8654 (SlimSAS x8)
• Max Drives: Up to 240 (with expanders)
• Cache Type: 8GB DDR4 NV (flash-backed, no battery required)
• Encryption: Self-Encrypting Drive (SED) support

Use Cases

• High-performance RAID storage in Dell PowerEdge R750, R650, and R550 servers
• Write-intensive workloads requiring persistent NV cache protection
• All-flash SAS/SATA RAID arrays in dense low-profile server chassis
• Enterprise databases and virtualization requiring RAID 5/6/10 protection

Compatibility

• Compatible with Dell PowerEdge 15th generation servers (R750, R650, R550, T550)
• Supports SAS 12Gb/s and SATA 6Gb/s HDDs and SSDs
• Managed via Dell OpenManage and iDRAC storage management

Frequently Asked Questions

What is NV Cache and how does it differ from FBWC?

NV (Non-Volatile) Cache uses NAND flash to persist write-cache data without a battery or capacitor, offering longer-lasting protection than traditional Flash Backed Write Cache (FBWC) modules.

Is the H755 compatible with 14th generation PowerEdge servers?

The H755 is designed for 15th generation PowerEdge servers. Compatibility with 14th gen platforms is not guaranteed — verify with Dell's compatibility matrix.

Does it support SED encryption?

Yes — the PERC H755 supports Self-Encrypting Drives (SED) for hardware-level data security.

The Dell PERC H755 delivers next-generation RAID performance with persistent NV cache for Dell PowerEdge 15G environments. Order today and protect your critical data with PCIe 4.0 speed and enterprise-grade reliability.