PERC-H755N: Dell PERC H755N Front NVMe PCIe Gen4 8GB NV Cache Hardware RAID Controller
Also listed as: 405-AAUR, 0X7F3X, X7F3X · made by Broadcom
The Dell PERC-H755N is a Dell PERC H755N Front NVMe PCIe Gen4 8GB NV Cache Hardware RAID Controller providing hardware RAID management and cache protection for storage volumes in Dell PowerEdge R750, R650, R7525, R6525 servers.
Specifications
| Part number | PERC-H755N |
|---|---|
| Brand | Dell |
| Made by | Broadcom |
| Type | RAID controllers |
| Other numbers | 405-AAUR, 0X7F3X, X7F3X |
| Status | current |
| Interface | PCIe 4.0 x8 |
| Data transfer rate | PCIe Gen4 NVMe (16GT/s per lane) |
| Cache size mb | 8,192 |
| Raid levels | RAID 0, 1, 5, 6, 10, 50, 60 |
| Form factor | Front dedicated mount |
About the PERC-H755N
The Dell PERC-H755N is a Dell PERC H755N Front NVMe PCIe Gen4 8GB NV Cache Hardware RAID Controller designed to manage enterprise RAID storage across SAS, SATA, and NVMe drives. Engineered with dedicated I/O processing silicon and onboard cache, the PERC-H755N executes hardware RAID levels 0, 1, 5, 6, 10, 50, and 60 with battery-backed or flash-backed cache protection. In Dell's server line-up, PERC-H755N ensures data availability and write caching for mission-critical storage volumes.
Compatibility
The PERC-H755N controller installs into dedicated storage slots or PCIe risers on Dell PowerEdge servers including R750, R650, R7525, R6525. The PERC-H755N interfaces with internal hot-plug drive backplanes via SAS or SlimSAS cabling and manages drives mounted in appropriate chassis caddies. Supported operating systems on the PERC-H755N include VMware ESXi, Windows Server, and Linux distributions with Dell PERC driver support.
How to identify a genuine unit
Authentic Dell PERC-H755N PERC controllers display a serialized label showing DP/N 405-AAUR, PERC branding, and Broadcom or LSI manufacturing markings. Within iDRAC under Storage Controllers, the PERC-H755N card enumerates with full firmware revision, battery or supercapacitor health telemetry, and connected virtual disk details.
Buying used
When sourcing a pre-owned PERC-H755N, inspect the card PCB for damaged surface passives or warped heatsink assemblies. Test the backup battery or supercapacitor pack on the PERC-H755N to ensure it holds a charge and reports healthy cache protection in iDRAC. Verify that all PERC-H755N SAS/NVMe physical channels detect attached drives without bus timeout errors.
Fits these models
Equivalent part numbers
- Broadcom MegaRAID 9560-16i Broadcom Tri-Mode NVMe RAID ROC
FAQ
What makes the H755N different from the standard H755?
The H755N connects directly to PCIe Gen4 NVMe drives rather than SAS/SATA drives, providing hardware NVMe RAID 5 and 6 protection.
How many NVMe drives does one H755N support?
Up to eight direct-attached PCIe Gen4 NVMe drives per controller.
Buying or selling PERC-H755N?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Dell PowerEdge RAID Controller H755N User Guide, checked 2026-10-27