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Green circuit board with silver PCIe x8 edge connector and four black SFF-8643 ports, plus four matching cables attached

LSI

LSI 9305-16i 16-port SAS 12Gb/s HBA PCIe 3.0 x8 with 4 SFF-8643 cables

SKU CH-7MEW-Y51C9

Connects 16 internal SATA or SAS drives at up to 12 Gb/s via PCIe 3.0 x8, includes four SFF-8643 cables

  • 16 internal ports connect up to 1024 SATA or SAS devices
  • PCIe 3.0 x8 host interface delivers 12Gb/s SAS bandwidth
  • Four SFF-8643 connectors provide four lanes each for dense cabling
  • Supports 3Gb/s, 6Gb/s and 12Gb/s link rates for mixed drive generations
  • IT-mode HBA presents drives directly to the OS without RAID overhead

16-port SAS 12Gb/s HBA for dense storage

This LSI 9305-16i host bus adapter adds sixteen internal SATA and SAS ports over a PCIe 3.0 x8 link. It connects up to 1024 SATA or SAS terminal devices through four SFF-8643 connectors. The card targets builders who need high port counts without a hardware RAID layer.

Thermals noise and power in typical operation

The adapter runs without an active cooler, so it adds no fan noise to the chassis. Power draw stays modest during normal drive traffic because the controller only manages link negotiation and data transfer. Airflow from standard case fans is sufficient for everyday workloads.

Behaviour under sustained load

Under continuous multi-drive streams the controller maintains 12Gb/s, 6Gb/s and 3Gb/s link rates across all sixteen ports. The IT-mode firmware passes commands directly to the operating system, avoiding RAID overhead during long rebuilds or parity checks. Builders who need onboard cache or battery-backed write protection should choose a different adapter.

Highlights

  • 16 internal ports connect up to 1024 SATA or SAS devices
  • PCIe 3.0 x8 host interface delivers 12Gb/s SAS bandwidth
  • Four SFF-8643 connectors provide four lanes each for dense cabling
  • Supports 3Gb/s, 6Gb/s and 12Gb/s link rates for mixed drive generations
  • IT-mode HBA presents drives directly to the OS without RAID overhead

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the LSI 9305-16i HBA into a PCIe 3.0 x8 slot and connect the four SFF-8643 cables?

Insert the card into a PCIe 3.0 x8 slot, secure the bracket screw, then attach each of the four SFF-8643 cables to the card's four internal x4 connectors and to your backplane or drive cages.

What maintenance or replacement will the LSI 9305-16i need over time?

The card has no onboard battery or flash module to replace; keep the server's internal airflow clean so the heatsink stays effective and reseat cables only if a drive link drops.

What is the first limit reached when the LSI 9305-16i runs sustained 12Gb/s SAS traffic on all 16 ports?

The PCIe 3.0 x8 host interface caps aggregate throughput at roughly 64Gb/s, so that bus ceiling appears before the 16 individual 12Gb/s ports saturate.

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