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Green PCIe card with 16 silver SFF-8644 ports on metal bracket

ATTO Technology

ATTO Technology ESAH-12F0-GT0 RAID controller 16 external ports 12Gb/s SAS/SATA PCIe 4.0

SKU CH-GHRN-DVBVP MPN ESAH-12F0-GT0

Connects sixteen external SAS or SATA drives at 12 Gb/s through an eight-lane PCIe 4.0 slot

  • Product typeSAS/SATA to PCIe 4.0 Host Bus Adapter
  • Key features16 external ports x8 PCIe 4.0 host connection (Backwards com
  • 16 external ports for high-density SAS and SATA connectivity
  • x8 PCIe 4.0 host link delivers 12Gb/s bandwidth per port
  • SFF-8644 miniSAS HD connectors support copper and optical cables
  • Backward compatible with 6Gb/s and 3Gb/s SAS and SATA targets
  • Driver support for Windows, Linux, VMware, FreeBSD, illumos and macOS

ATTO ExpressSAS H12F0GT 16-port HBA

The ATTO ExpressSAS H12F0GT is a 16-port SAS/SATA host bus adapter built for servers and storage appliances that need high-density external connectivity. It connects to the host over an x8 PCIe 4.0 link and is backwards compatible with PCIe 3.0 platforms. The card targets administrators who require deterministic throughput for tape libraries, JBOD enclosures or scale-out storage clusters.

Thermals noise and power profile

The adapter uses a low-profile form factor with passive cooling suited to standard server airflow, so it adds minimal acoustic load to rack environments. Power draw scales with the number of active 12Gb/s links and the cable type deployed, copper or optical. No auxiliary power connector is required, simplifying installation in dense chassis where power budgets are tight.

Bundled software and management value

ConfigTool and vConfigTool utilities provide a unified interface for firmware updates, link diagnostics and NUMA topology tuning across Windows, Linux, VMware, FreeBSD, illumos and macOS. Advanced Data Streaming technology regulates acceleration to smooth bursty workloads without host intervention. WriteStop and the target-mode driver kit enable OEMs to build specialised data-security or storage-server appliances on the same hardware.

How it compares

Measured against everything we stock in RAID & Drive Controller Cards, at today’s prices. Recalculated every night.

Price $627.99
Pricier than about 80% of the 219 comparable items (median $155.99).

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Specifications

Product
Brand nameATTO
Product lineExpressSAS H12F0GT
Model nameESAH-12F0-GT0
Product typeSAS/SATA to PCIe 4.0 Host Bus Adapter
Size & build
Shipping weight0.91 kg
Package size203 × 152 × 76 mm

Questions about this item

How do I install the ATTO ExpressSAS H12F0GT into a server and which step is often missed?

Insert the x8 PCIe 4.0 card into a compatible slot, connect SFF-8644 cables to the 16 external ports, then install the driver for Windows, Linux, VMware, FreeBSD, illumos or macOS; the step often missed is installing the management utilities (ConfigTool or vConfigTool) to configure RAID and monitor health.

What maintenance or replacement will the ATTO ESAH-12F0-GT0 need over time?

The controller has no moving parts or batteries; maintenance is limited to firmware updates via ConfigTool and replacing any failed SFF-8644 copper or optical cables; the card itself does not require scheduled component replacement.

Which limit appears first when all 16 ports run sustained 12Gb/s SAS workloads?

The x8 PCIe 4.0 host link is the first bottleneck; aggregate device throughput can exceed the host bus bandwidth, so sustained full-port loads saturate the PCIe connection before the individual 12Gb/s SAS links.

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