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Green printed circuit board with silver PCIe x4 edge connector and black OCulink 4i port

Innocard

Innocard PCIe Gen4 to OCulink 4i gender changer

SKU CH-MG75-FXMVF

Converts an OCulink 4i port to PCIe x4 Gen 4 with a built-in re-driver for 16 GT/s signal extension

  • Changer TypePCIe Gen4
  • PCIe Gen 4 x4 support for 16 GT/s bandwidth
  • Built-in ReDriver extends signal reach over longer cables
  • Integrated clock buffer drives 100 MHz reference across extended traces
  • Multiple bus buffers maintain PERST, WAKE and CLKREQ integrity
  • Green LED indicates host adapter ready status

Purpose-built adapter

The Innocard PCIe Gen4 to OCulink 4i gender changer converts an OCuLink SFF-8612 connection to a PCIe x4 Gen 4 add-in card slot. It targets system integrators and server builders who need to extend PCIe 4.0 signals over longer cables inside rack, tower or microserver chassis.

Signal integrity over distance

A PI3EQX16904GL ReDriver and dedicated clock, PERST#, WAKE#, CLKREQ# and PWRBRK# buffers regenerate 16 GT/s differential pairs and 100 MHz reference clocks across extended trace lengths. The green D3 LED confirms the host bus adapter link is active and trained.

Server chassis integration

The half-height bracket mounts in a standard expansion slot and presents an SFF-8612 receptacle for high-density storage or accelerator cabling. It requires a PCIe 4.0-capable host slot and an OCuLink 1.0a cable assembly; no additional drivers are needed beyond Windows 7 through 10 or UEFI 2.3.1 firmware.

Highlights

  • PCIe Gen 4 x4 support for 16 GT/s bandwidth
  • Built-in ReDriver extends signal reach over longer cables
  • Integrated clock buffer drives 100 MHz reference across extended traces
  • Multiple bus buffers maintain PERST, WAKE and CLKREQ integrity
  • Green LED indicates host adapter ready status

Specifications

Changer TypePCIe Gen4

Questions about this item

What does the 16 GT/s figure mean once this card is installed in a real machine?

It indicates the PCIe 4.0 lane speed the re-driver can sustain, so the host sees full Gen 4 bandwidth across the OCulink cable.

Which standard governs the OCulink 4i connector on this adapter?

The SFF-8612 connector follows the SFF-9402 Rev 1.1 pin-out and is compliant with SFF-8612 Specification Version 3.5.

What physical slot and clearance does this adapter need to fit?

It plugs into a standard PCIe x4 or larger slot and occupies a single low-profile bracket.

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