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Green circuit board RAID card with silver bracket and gold edge connector

DELL

DELL 405-AAXV PERC H755 RAID controller 12Gb/s SAS

SKU CH-J911-PXJX5 MPN 405-AAXV

PCIe RAID controller delivers up to 12Gb/s SAS with RAID 0, 1, 5, 6, 10, 50, 60

  • Transfer speedUp to 12Gb/s
  • Supported RAID modes0 , 1 , 5, 6, 10, 50, 60
  • Product typeSAS
  • 12Gb/s SAS throughput accelerates storage arrays
  • PCI Express interface delivers smooth data transfer
  • RAID 0, 1, 5, 6, 10, 50, 60 protects critical data
  • Plug-in card form factor simplifies server installation
  • Dell PERC H755 architecture expands storage capacity

Dell PERC H755 RAID controller

This Dell PERC H755 adapter is a 12Gb/s SAS RAID controller built as a PCI Express plug-in card for server storage expansion. It supports RAID levels 0, 1, 5, 6, 10, 50 and 60 to provide fault tolerance and performance options. The card targets administrators who need hardware RAID for internal SAS drives in Dell PowerEdge servers.

RAID levels and SAS connectivity

Hardware RAID offloads parity calculation from the host CPU, improving throughput during rebuilds and heavy write workloads. Support for RAID 50 and 60 allows larger arrays with distributed parity across multiple span groups. The 12Gb/s SAS interface connects compatible drives and enclosures without requiring additional protocol converters.

PCI Express plug-in card installation

The low-profile plug-in card installs into a standard PCIe slot and is recognised by Dell OpenManage and PERC BIOS utilities during POST. Firmware updates are applied through the iDRAC or bootable ISO when the server is in a maintenance window. Missing or mismatched drive firmware and backplane cabling errors are the most common causes of arrays not appearing at boot.

How it compares

Measured against everything we stock in RAID & Drive Controller Cards, at today’s prices. Recalculated every night.

Price $498.99
Pricier than about 74% of the 219 comparable items (median $155.99).

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Specifications

Product
Brand nameDell
Model name405AAXT
Part number405AAXT
Product typeSAS
Performance
Transfer speedUp to 12Gb/s
Storage
Supported RAID modes0 , 1 , 5, 6, 10, 50, 60
Size & build
Shipping weight0.91 kg
Package size203 × 178 × 76 mm

Questions about this item

Will the PERC H755 adapter need a battery or flash module replacement later?

The PERC H755 adapter supports RAID 0, 1, 5, 6, 10, 50, 60; cache protection modules are sold separately and may need replacement after several years of continuous operation.

What throughput limit appears first when the 12Gb/s SAS controller runs sustained workloads?

The 12Gb/s SAS interface sets the peak bandwidth ceiling; sustained throughput will be limited by the attached drives and PCIe lane allocation rather than the controller itself.

How much heat and power does the plug-in card produce when running all day in a server?

The low-profile plug-in card draws power only from the PCI Express slot and uses passive cooling, so heat output stays within standard server airflow limits.

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