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Green circuit board with silver SFF-8654 connector and PCIe x8 gold fingers

Innocard

Innocard PCIe 4.0 x8 ReDriver SFF-8654 8i RAID controller

SKU CH-3S32-BZP37

Converts PCIe 4.0 x8 to SFF-8654 8i with integrated ReDriver and clock buffer for 16 GT/s signal extension over longer cables

  • TypePCIe 4.0
  • PCIe 4.0 x8 at 16 GT/s for high bandwidth
  • ReDriver extends Gen 4 signals over longer cables
  • Clock buffer drives 100 MHz across extended traces
  • SFF-8654 8i connector follows SFF-9402 Rev 1.1 pin-out
  • Green LED shows the add-in card is ready

PCIe 4.0 x8 ReDriver controller

This Innocard adapter converts a PCIe 4.0 x8 slot to an internal SFF-8654 8i connector using a built-in ReDriver. It is designed for server builders who need to extend Gen4 signals over longer cables or backplanes. The card includes clock, sideband and power-break buffers to maintain link integrity across extended trace lengths. A green LED indicates when the add-in card is ready.

SFF-8654 8i interface limits

The connector follows the SFF-9402 Rev 1.1 pin-out and carries eight lanes at 16 GT/s. Signal quality depends on cable construction and total trace length because the ReDriver compensates but cannot overcome fundamental physics. The 100 MHz clock buffer and bidirectional SMCLK/SMDAT repeaters help sustain the link, yet very long or poor-quality cables may still cause errors. No RAID processing or drive management is performed on this card.

Installation notes

The controller fits a standard PCIe x8 or x16 slot and requires no additional drivers for the ReDriver function. Builders must ensure the SFF-8654 cable pin-out matches the SFF-9402 Rev 1.1 specification to avoid miswired lanes. Common issues include loose SlimSAS latch engagement and exceeding the practical reach of the ReDriver with excessive cable daisy-chaining. Verify that the host platform routes PCIe 4.0 to the chosen slot.

Points forts

  • PCIe 4.0 x8 at 16 GT/s for high bandwidth
  • ReDriver extends Gen 4 signals over longer cables
  • Clock buffer drives 100 MHz across extended traces
  • SFF-8654 8i connector follows SFF-9402 Rev 1.1 pin-out
  • Green LED shows the add-in card is ready

Caractéristiques

TypePCIe 4.0

Questions sur cet article

Which SFF-8654 8i version should I select for my server?

This controller uses a single SFF-8654 8i connector pinned to SFF-9402 Rev 1.1, so choose the matching SlimSAS cable for eight lanes.

What does the 16GT/s headline figure mean once installed?

It indicates PCIe 4.0 x8 bandwidth at 16GT/s per lane, delivered through the on-board ReDriver and clock buffer for longer traces.

What interface standard does the card use and what does it cap in practice?

The card plugs into a PCIe 4.0 x8 slot and converts the signal to SFF-8654 8i, limited to eight lanes at 16GT/s.

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