Adaptec Series 6H

Adaptec Series 6H
Host Bus Adapters (HBAs)

4- and 8- port PCIe Gen2 HBAs offer broad device compatibility, scalability and flexibility

The Series 6H family of PMC Adaptec SAS/SATA host bus adapters (HBA) offers the ideal economical solution for customers requiring high-performance I/O connectivity.

The Series 6H HBAs connect to hard disk drives (HDDs), solid-state drives (SSDs), removable media, and SAS tape drives, and support the migration of disks from onboard SATA interfaces or other SATA/SAS I/O controllers.

Flexible, Scalable, Customizable
Using PMC's SAS protocol controller and a PCIe Gen2 interface, Series 6H HBAs support both Serial Attached SCSI (SAS) and Serial ATA (SATA) interfaces to provide the flexibility to use cost-effective, high-capacity SATA drives and/or high-performance SAS drives.

Compatibility with a multitude of storage devices enables system builders to develop server, storage, and backup solutions tailored to meet specific customer needs.

Series 6H HBAs also support SAS expanders, allowing end users to scale-up and design an optimal price-per-drive solution.

Compatibility, Reliability, and Support
Series 6H HBAs have been extensively tested with third-party systems and devices to deliver the utmost in compatibility. These HBAs are equipped with both uEFI and legacy BIOS options as well as a CTRL-A configuration utility and HII-based BIOS tools.

Featured Documents


  • 6805H: 8 internal ports
  • 6405H: 4 internal ports
All Series 6H:
  • 6Gb/s throughput at each port
  • PCIe x4 host interface
  • Shorter than Low-profile MD2 form factor
  • Connectors out the back allows easy cable connections
  • Support for SAS expanders supporting up to 128 devices
  • Enclosure management support via LED header and SES2/SGPIO


    Cost effective I/O solution supporting SAS and SATA HDDs, SSDs, removable media, SAS tape drives.

Customer Needs

    Flexibility to install SAS and SATA drives; I/O connectivity offering broad compatibility, support for SAS expanders, and enclosure management.

Key Features

  • Four (6405H) and eight (6805H) 6Gb/s ports
  • PMC SAS protocol controller supports SAS and SATA HDDs, SSDs, and SAS tape drives
  • PCIe Gen2 x4 host interface
  • Shorter than Low-profile MD2 form factor
  • Support for SAS expanders
  • Enclosure management support via LED header and SES2/SGPIO
  • Up to 280,000 IOPS at 4 KB block size
  • Up to 1600 MB/s sequential throughput (64KB blocks)

Management Utilities

Adaptec BIOS Configuration Utility (CTRL+A)
  • Legacy configuration utility
  • Flashable BIOS support
Adaptec uEFI BIOS Configuration Utility
  • HII based configuration utility
  • Flashable BIOS support

Operating System

  • Microsoft Windows
  • Red Hat Linux
  • VMware ESX
  • SUSE Linux
  • Ubuntu Linux
  • Debian Linux
  • FreeBSD
For a detailed list see ASK Answer ID 17283.

Data Transfer Rate

    6 Gb/s per port

Bus System Interface

  • 6805H: 4-Lane PCIe Gen2
  • 6405H: 4-Lane PCIe Gen2

Form Factor

    Low-profile form factor (2.535"H x 6.095"L) smaller than MD2 allows installation in condensed system designs

Connector Configuration

  • 6805H: 2 internal (SFF-8087) Mini SAS
  • 6405H: 1 internal (SFF-8087) Mini SAS

Package Contents

    Model 6805H
  • Adaptec 6805H adapter
    Model 6405H
  • Adaptec 6405H adapter
    Also included with each HBA:
  • Additional low profile vented bracket
    *Single does not include cables

Physical Size

    2.535"H x 6.095"L (64mm x 155mm)

Operating Temperature

    0°C to 55°C (with 200 LFM airflow)

    Note: This Adaptec card contains a powerful processor which requires adequate airflow to operate reliably. Please install this card only into server or PC chassis with recommended airflow (200 LFM).

    * Ambient temperature measured 1" away from the processor

Operating Humidity

    Relative humidity: 10% to 90%, non-condensing

Operating Voltage

    0.09A@ 3.3V
    0.7A@ 12.0V

Regulatory Certification

    CE, FCC, C-tick, VCCI, CNS, KCC, UL, BSMI

Mean Time Before Failure (MTBF)

    2,000,000 hours at 40°C


    3 years

6Gb Cables: Compatible with 6Gb/s and 3Gb/s Products

3Gb Cables: Compatible with 6Gb/s and 3Gb/s Products

Model 6805H (EOL, limited quantities)
Single P/N: 2277900-R* (SRP) $180.00

Model 6405H (EOL, limited quantities)
Single P/N: 2278000-R* (SRP) $145.00

*Single does not include cables

Where to Buy?

Find an Adaptec Authorized reseller or distributor.

For product questions, email us at or call 1-800-442-7274 / 408-957-7274