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Green low-profile RAID card with gold PCIe x8 edge connector and two SFF-8643 ports

Adaptec

Adaptec ASR-7805 RAID controller 1GB cache PCIe 3.0 x8

SKU CH-2STR-10E0B MPN ASR-7805

Adds 1GB cache RAID 0/1/1E/5/6/10/50/60 over SAS/SATA 6.0Gbps via PCIe 3.0 x8 low-profile card

  • Interface typePCI Express 3.0 x8
  • Part type or numberASR-7805
  • SSD form factor2.5 in (6.35 cm)
  • Supported RAID modes0/1/1E/10
  • Product typeSATA / SAS
  • Hardware RAID 0, 1, 1E, 5, 6, 10, 50, 60 protects data
  • 1 GB onboard cache accelerates read and write performance
  • PCI Express 3.0 x8 interface delivers high host bandwidth
  • Two SFF-8643 connectors support SAS and SATA drives
  • Low-profile form factor fits 2.5 inch height server chassis

Low-Profile RAID Controller

The Adaptec ASR-7805 is a PCI Express 3.0 x8 RAID controller card with 1GB cache memory. It supports SAS and SATA drives at up to 6.0Gb/s transfer rates through two internal SFF-8643 connectors. The low-profile ready form factor fits 2.5-inch drive environments and standard server chassis.

Suits RAID 0 1 1E 10 Builds

This card suits administrators who need hardware RAID 0, 1, 1E or 10 for internal SAS or SATA arrays. It is not for deployments requiring RAID 5, 6, 50 or 60 parity protection. It is also not for systems lacking a PCI Express 3.0 x8 slot or for external JBOD expansion without additional cabling.

1GB Cache Decides Fit

The onboard 1GB cache is the specification that determines whether this controller meets your write-performance and data-protection needs. Buyers who need larger cache capacity or battery-backed flash backup should look at other models. The 64mm by 167mm dimensions confirm low-profile compatibility.

How it compares

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

Price $38.99
Cheaper than about 83% of the 219 comparable items (median $155.99).

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Specifications

Product
Brand nameAdaptec
Part numberASR-7805
Part type or numberASR-7805
Product typeSATA / SAS
Storage
SSD form factor2.5 in (6.35 cm)
Supported RAID modes0/1/1E/10
Ports & slots
Interface typePCI Express 3.0 x8

Questions about this item

What server slot does the ASR-7805 need for full 3.0 x8 bandwidth?

The card installs in any PCI Express 3.0 x8 or wider slot; an x16 slot also works at x8 speed.

Will my existing 6.0Gb/s SAS drives connect directly to the two SFF-8643 ports?

Yes, the internal mini-SAS HD connectors accept standard 6.0Gb/s SAS or SATA cables for direct drive attachment.

How can I confirm the 1GB cache is active after installing the ASR-7805?

The Adaptec BIOS utility and maxView Storage Manager both display the 1GB cache size and its write-back status once the card posts.

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