Adaptec ASR-7805 RAID Controller 8-Port 6Gb/s PCIe 3.0 - 1GB Cache

In this review the Adaptec ASR-7805 is evaluated as a straightforward, no-frills hardware RAID controller aimed at small servers and workstation builders who need reliable on-board RAID without platform-specific gimmicks. The biggest reason to consider it is its combination of eight internal SAS/SATA ports, PCI-E 3.0 x8 connectivity and a full 1GB cache, which together deliver consistent throughput for multi-drive arrays. The card reviewed is new, factory sealed and supplied with the manufacturers warranty, so buyers get a retail-package part ready for deployment.

Key Features

• 8 internal ports: Supports connecting multiple SAS or SATA drives to build RAID arrays for higher capacity or redundancy.
• 6Gb/s per port: Provides current-generation SAS/SATA interface speed for improved sequential transfer on supported drives.
• PCI-E 3.0 x8: Offers ample host interface bandwidth for most small server workloads and workstation storage pools.
• 1GB cache: On-board cache improves write performance and helps smooth bursty I/O workloads in RAID configurations.
• Retail sealed with warranty: Arrives new in box with the manufacturers warranty for reassuring long-term support.

Who It's For

The Adaptec ASR-7805 suits small business servers, entry-level storage arrays and power users building RAID arrays from multiple SAS or SATA drives who need a stable controller with decent cache and modern interface speeds. It is especially useful where internal drive connectivity density and a dedicated cache are priorities over integrated motherboard solutions.

It is not aimed at users who need hardware with integrated NVMe support, extremely high port counts, or vendor-specific proprietary management features. Buyers who require the absolute highest enterprise throughput or specialized features should compare this to higher-end controllers or dedicated external storage systems.

Pros & Cons

Pros

• Solid combination of eight internal SAS/SATA ports and PCI-E 3.0 x8 for broad compatibility with drives and hosts.
• 1GB on-board cache helps deliver better write performance and consistent array behavior under load.
• New retail, factory sealed condition with manufacturer warranty provides peace of mind for deployment.

Cons

• The controller focuses on SAS/SATA and does not provide NVMe connectivity, which limits use with the fastest modern drives.

Specifications

Model	ASR-7805
Interface	PCI-E 3.0 x8
Ports	8 internal SAS/SATA ports
Transfer Rate	6Gb/s per port
Cache	1GB on-board cache
Condition	New retail factory sealed
Warranty	Manufacturer warranty included

Our Verdict

The Adaptec ASR-7805 is a practical, value-minded RAID controller for small servers and workstation builds that need reliable SAS/SATA connectivity and a dedicated cache. Its 8 internal ports, 6Gb/s links and 1GB cache make it a sensible upgrade over motherboard RAID for many users, and the new retail packaging with manufacturer warranty adds confidence for deployment.

Frequently Asked Questions

Does this controller support both SAS and SATA drives?
Yes. The ASR-7805 provides internal SAS/SATA ports that accept either drive type for flexible array builds.

What interface does the card use to connect to the host?
The controller uses a PCI-E 3.0 x8 host interface to connect to the system.

Is the product new and covered by warranty?
Yes. The unit is described as new retail, factory sealed, and shipped with the manufacturers warranty.