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Green circuit board with four red SATA ports and a PCIe x4 edge connector

KEERUN

KEERUN 4-port SATA III RAID controller Marvell 88SE9230 PCIe x4

SKU CH-55ES-EVCVP

Adds four internal SATA 6 Gbps ports with RAID 0, 1, 10 and HyperDuo via a PCIe 2.0 x4 slot

  • TypePCI Express to SATA Card
  • External USB Ports4x SATA III
  • Four internal SATA 6.0 Gbps ports expand storage
  • PCIe 2.0 x4 interface fits x4, x8 and x16 slots
  • RAID 0, 1, 10 and HyperDuo protect or accelerate data
  • Hot-plug and hot-swap let you change drives without downtime
  • NCQ and Port Multiplier support improve drive efficiency

Four-port SATA III RAID adapter

The KEERUN controller adds four internal SATA 6Gb/s ports through a PCIe 2.0 x4 slot using the Marvell 88SE9230 chip. It provides software RAID 0, 1, 10 and HyperDuo modes with stripe sizes of 32K or 64K. Hot-plug, hot-swap and NCQ are supported on each port.

Suits builders adding multiple SATA drives

The card fits PCIe x4, x8 or x16 slots and works with Windows XP through 10, Server 2003, 2008, 2008 R2 and Linux 2.6 or newer. Buyers who need hardware RAID offload or RAID across port-multiplier devices should look elsewhere.

Marvell 88SE9230 PCIe 2.0 x4 host controller

This single component determines RAID capability, port count and supported SATA speeds of 6.0, 3.0 and 1.5 Gbps. Compatibility with the target operating system and available PCIe slot width decides whether the card meets the build requirements.

Highlights

  • Four internal SATA 6.0 Gbps ports expand storage
  • PCIe 2.0 x4 interface fits x4, x8 and x16 slots
  • RAID 0, 1, 10 and HyperDuo protect or accelerate data
  • Hot-plug and hot-swap let you change drives without downtime
  • NCQ and Port Multiplier support improve drive efficiency

Specifications

TypePCI Express to SATA Card
External USB Ports4x SATA III

Questions about this item

How do I install the KEERUN 4-port SATA III RAID controller into a PCIe x4 slot and what step is often missed?

Insert the card into a PCIe x4, x8 or x16 slot, secure the bracket screw, connect up to four internal SATA cables to the 6 Gbps ports, then install the Marvell 88SE9230 driver or use the built-in AHCI driver in Linux 2.6.x and above before creating any RAID array.

What maintenance or replacement will the KEERUN 4-port SATA III RAID controller need later?

The controller itself has no moving parts or batteries; plan to replace attached SATA cables if latch clips wear out, and keep the Marvell 88SE9230 driver updated through Windows 10, Server 2008 R2 or newer Linux kernels to maintain HyperDuo and RAID 0, 1, 10 support.

What limit appears first on the KEERUN 4-port SATA III RAID controller under sustained use?

The PCIe 2.0 x4 host link caps aggregate throughput at roughly 20 Gbps, so four simultaneous 6 Gbps SATA III drives will saturate the bus before the Marvell 88SE9230 chip reaches its own processing ceiling.

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