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Green PCI card with two red SATA ports and silver bracket

weastlinks

weastlinks PCI 2 Port SATA RAID Card Sil3112

SKU CH-5Y3B-X7X0V

Adds two SATA ports with RAID 0 or 1 support via a PCI 2.2 slot using the Sil3112 chipset at 1.5 Gb/s

  • TypePCI Express to SATA Card
  • External USB Ports2 Port
  • Adds two SATA drives via PCI bus 2.2
  • Silicon Image Sil3112 chipset drives both ports
  • Hardware RAID 0 or 1 supported
  • Mix different drive sizes in one RAID set
  • Works with Windows 2000 through Win 7

Two-port SATA RAID on PCI

This controller card adds two Serial ATA Gen 1 connectors to a desktop system through a standard PCI slot. It uses the Silicon Image Sil3112 chipset and presents RAID 0 or RAID 1 functions alongside non-RAID drives. The card targets owners of older workstations or servers that lack onboard SATA ports but still run Windows 2000 through Windows 7.

Bandwidth limited to PCI Rev 2.2 and SATA 1.0

The host bus tops out at the PCI Rev 2.2 ceiling while the drive links negotiate at SATA Rev 1.0, giving a maximum data rate of 1.5 Gb/s or 150 MB/s. Mechanical hard drives from that era will saturate the link, but any modern solid-state drive will be bottlenecked by the interface. The practical throughput ceiling is fixed by the generation 1 specification.

RAID 0 or 1 with mismatched drive sizes

The Sil3112 firmware allows a RAID set to combine drives of different capacities, letting builders pair whatever spare disks are on hand. Only striping (RAID 0) and mirroring (RAID 1) are supported, so users needing parity-based redundancy or JBOD spanning must look elsewhere.

Highlights

  • Adds two SATA drives via PCI bus 2.2
  • Silicon Image Sil3112 chipset drives both ports
  • Hardware RAID 0 or 1 supported
  • Mix different drive sizes in one RAID set
  • Works with Windows 2000 through Win 7

Specifications

TypePCI Express to SATA Card
External USB Ports2 Port

Questions about this item

Should I use this card for a single drive, a mirrored pair or a striped pair?

The Sil3112 chipset supports RAID 0 striping for speed or RAID 1 mirroring for redundancy, and you can mix a RAID set with a non-RAID drive on the same card

What does the 1.5 Gb/s rate mean for actual drive speed?

SATA Gen 1 caps throughput at 150 MB/s so mechanical drives will hit their natural limit while SSDs will be bottlenecked by the link

Which PCI slot version does the card need and what bandwidth does that provide?

The board plugs into a PCI Rev 2.2 slot and the Sil3112 controller runs at SATA Rev 1.0 speeds

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