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Adaptec 2277600-R 8405 Series 4-Port RAID Adapter

Controllers

Adaptec 2277600-R 8405 Series 4-Port  RAID Adapter Picture 71733Adaptec 2277600-R 8405 Series 4-Port  RAID Adapter Picture 71734
The Adaptec 2277600-R 8405 RAID Adapter is an 4-port, 12Gbps SAS / SATA controller card. It supports all major RAID modes via a hardware controller chip plus 1GB of onboard memory, and by utilizing a PCI-Express 3.0 x8 slot it can handle tremendous data bandwidth. This allows using even fast solid-state drives effectively, though the strengths of RAID are generally capacity and redundancy rather than speed.

For mission-critical work, there is also an optional hardware add-on to protect data in the card's cache during an unexpected loss of power. This upgrade, called a Flash Module Kit, helps to shield data that was in the process of being written during power loss from corruption. Without that, it is highly recommended to disable the Write Caching feature on this card. Doing so reduces write speeds on hard drive based arrays dramatically, but the alternative is to leave your data open to corruption in the case of an unexpected loss of power. Solid state drives do not need write caching with this card, however, and actually perform better with it disabled.

Model: Adaptec 2277600-R

Specifications

Card Specifications
Manufacturer Microsemi
Type of Ports Mini-SAS SFF8643
Number of Ports 4
RAID Modes Supported 0 1 5 6 50 60
Battery Backup Available? Yes
Slot Style PCI-Express x8
Form Factor Low/Full Height
Controller Chip
Brand Adaptec
Memory Amount 1024 MB
Memory Expandable? No
Dimensions
Height 64.52 mm (2.5 in)
Width 167.65 mm (6.6 in)