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Green PCB adapter with SFF-8674 and PCIe x8 connectors

Innocard

Innocard DP8710 PCIe 4.0 x8 gender changer with ReDriver to SFF-8674

SKU CH-ZKHS-JY8W7

PCIe 4.0 x8 gender changer with ReDriver extends signals to SFF-8674 connectors and supports bifurcation into two x4 links

  • Changer TypePCIe Gen4
  • Extends PCIe 4.0 links with integrated ReDriver
  • Bifurcates eight lanes into two four-lane links
  • Protects 3.3 V input with TVS and load switch
  • Buffers clock, PERST, WAKE and CLKREQ signals
  • Enables SMBus management via switch, buffer and I/O expander

PCIe 4.0 x8 gender changer with ReDriver

The Innocard DP8710 converts a PCIe 4.0 x8 slot to two SFF-8674 Mini SAS HD connectors. It is built for system integrators who need to route eight lanes of Gen4 signals to external SAS cabling. The on-board ReDriver extends reach at 16 GT/s and the clock buffer drives longer cables. Bifurcation into two x4 links is supported.

Thermals noise and power draw

The adapter draws 3.3 V from the slot through a TVS-protected load switch. No active cooling is fitted, so airflow in the chassis handles the modest heat from the ReDriver and buffer ICs. The card adds no fan noise and its power consumption stays within the slot budget for a passive Gen4 signal conditioner.

Build integration needs

The board requires a free PCIe 4.0 x8 slot and 3.3 V standby power with TVS and load-switch protection already present. It frees the builder from running fragile high-speed traces to the rear panel by moving the SFF-8674 ports to the bracket. SMBus addresses 0x6C, 0x70 and 0x20 are reserved for clock, switch and expander functions. PERST#, WAKE# and CLKREQ# buffers maintain link stability over extended cable runs.

Highlights

  • Extends PCIe 4.0 links with integrated ReDriver
  • Bifurcates eight lanes into two four-lane links
  • Protects 3.3 V input with TVS and load switch
  • Buffers clock, PERST, WAKE and CLKREQ signals
  • Enables SMBus management via switch, buffer and I/O expander

Specifications

Changer TypePCIe Gen4

Questions about this item

How do I install the Innocard DP8710 into a PCIe 4.0 x8 slot and connect the SFF-8674 cables?

Insert the card into a PCIe 4.0 x8 slot, connect external Mini SAS HD SFF-8674 cables to the built-in 1x2 4X connectors, and ensure the system supplies 3.3V power; the on-board ReDriver and clock buffer handle signal integrity for longer cables.

What maintenance or replacement will the DP8710 need over time?

The adapter has no moving parts or field-replaceable components; the TVS diodes and load switch protect the 3.3V input, so only inspect cables and connectors periodically for physical damage or debris.

What is the first limit that appears under sustained PCIe 4.0 x8 traffic?

The 16 GT/s per lane signal quality over extended cable length is the limiting factor; the built-in ReDriver with programmable equalization and the 100 MHz clock buffer are designed to maintain link stability up to the cable's reach.

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