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Green PCIe x8 RAID card with two SFF-8087 ports and attached battery backup unit

Adaptec

Adaptec ASR-5805Z RAID controller 512MB BBU

SKU CH-S0X7-N9NMJ

A RAID controller with two Mini SAS ports, PCIe x8 bus, 512 MB cache, battery backup and support for RAID 0, 1, 1E, 5, 5EE, 6, 10, 50, 60 and JBOD

  • TypeRaid Controller
  • Broad RAID choice with levels 0, 1, 1E, 5, 5EE, 6, 10, 50, 60, JBOD
  • 512MB cache backed by BBU protects data during power loss
  • Two Mini SAS internal SFF-8087 ports connect SAS and SATA drives
  • PCI Express x8 bus provides high-throughput host connection
  • 3Gb/s transfer rate supports demanding storage workloads

Adaptec ASR-5805Z RAID controller for enterprise

The Adaptec ASR-5805Z is a SAS/SATA RAID controller built for servers that need hardware-managed arrays with battery-backed cache. It connects through a PCI Express x8 slot and presents two Mini SAS internal ports using the SFF-8087 connector. The card targets administrators who require reliable volume management without host CPU overhead.

Thermals and power draw in normal use

The controller operates within standard server airflow without dedicated active cooling on the board itself. Power consumption scales with the number of attached drives and active RAID calculations. The included Battery Backup Unit preserves cached writes during unexpected power loss, protecting array consistency without adding continuous thermal load.

BBU and RAID levels change data protection

The bundled Battery Backup Unit maintains the 512MB cache during outages, preventing write-hole corruption on parity-based arrays. Supported RAID levels include 0, 1, 1E, 5, 5EE, 6, 10, 50, and 60, plus JBOD for pass-through configurations. This combination lets operators choose striping, mirroring, or distributed parity to match capacity and uptime requirements.

Highlights

  • Broad RAID choice with levels 0, 1, 1E, 5, 5EE, 6, 10, 50, 60, JBOD
  • 512MB cache backed by BBU protects data during power loss
  • Two Mini SAS internal SFF-8087 ports connect SAS and SATA drives
  • PCI Express x8 bus provides high-throughput host connection
  • 3Gb/s transfer rate supports demanding storage workloads

Specifications

TypeRaid Controller

Questions about this item

How do I install the ASR-5805Z into a server and connect the drives?

Insert the card into a PCI Express x8 slot, then attach SAS or SATA drives to the two Mini SAS internal SFF-8087 ports using compatible cables.

When will the 512MB BBU need replacement?

The battery backup unit typically lasts three to five years; replace it when the controller reports a degraded or failed battery status during POST or in the management utility.

What throughput limit appears first under sustained heavy I/O?

The 3Gb/s per-port data transfer rate becomes the bottleneck before the PCI Express x8 bus or 512MB cache are saturated.

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