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Small green circuit board with gold edge connector and black SFF-8612 port

Innocard

Innocard M.2 Golden Edge PCIe Gen 4 ReDriver OCulink 4i adapter

SKU CH-X2ES-PZDQG

Converts OCulink 4i to M.2 PCIe 4.0 with a built-in ReDriver for 16 GT/s signal extension

  • Changer TypePCIe Gen4
  • Connects OCulink 4i to M.2 PCIe 4.0 devices
  • Built-in ReDriver extends Gen 4 signals at 16 GT/s
  • On-board 100 MHz clock buffer drives longer cables
  • SMBus, PERST#, WAKE#, CLKREQ#, PWRDIS level translators included
  • Designed and manufactured in Taiwan to SFF-9402 Rev 1.1

M.2 Golden Edge PCIe Gen 4 ReDriver OCulink 4i

The Innocard M.2 Golden Edge PCIe Gen 4 ReDriver OCulink 4i adapter converts an OCulink 4i (SFF-8612) interface to an M.2 PCIe 4.0 slot. It integrates a PCIe ReDriver to extend 16 GT/s differential signals and includes a 100 MHz clock buffer for longer trace lengths. Built-in bidirectional buffers handle SMBus, PERST#, WAKE#, CLKREQ# and PWRDIS with voltage-level translation.

Builders with an OCulink 4i header needing M.2

This adapter suits server, microserver, tower and high-performance computing builds that expose an SFF-8612 port and require an M.2 slot. Systems without an OCulink 4i connector or that rely on a different host interface cannot use this board. The design targets PCIe 4.0 signal integrity over extended cable runs in rack and accelerator deployments.

PCIe Gen 4 16 GT/s ReDriver with clock buffer

The on-board ReDriver restores 16 GT/s differential pairs while the 100 MHz clock buffer drives longer cables without signal loss. Voltage-level translators on PERST#, WAKE#, CLKREQ# and PWRDIS maintain side-band control across the SFF-8612 to M.2 boundary. Compliance with PCIe 4.0, OCulink 1.0a and SFF-9402 Rev 1.1 confirms the link budget for Gen 4 operation.

Highlights

  • Connects OCulink 4i to M.2 PCIe 4.0 devices
  • Built-in ReDriver extends Gen 4 signals at 16 GT/s
  • On-board 100 MHz clock buffer drives longer cables
  • SMBus, PERST#, WAKE#, CLKREQ#, PWRDIS level translators included
  • Designed and manufactured in Taiwan to SFF-9402 Rev 1.1

Specifications

Changer TypePCIe Gen4

Questions about this item

What M.2 slot key and PCIe generation must my motherboard provide for this adapter to work?

The adapter converts an OCulink 4i SFF-8612 connection to an M.2 PCIe 4.0 interface, so the host must supply an M.2 slot wired for PCIe 4.0 signalling at 16 GT/s.

Will the onboard ReDriver and clock buffer let me use a longer OCulink cable with an older PCIe 3.0 backplane?

Yes, the built-in PCIe ReDriver extends Gen 4 16 GT/s differential pairs and the 100 MHz clock buffer drives longer traces, so the link remains stable even when the far end negotiates down to an earlier PCIe generation.

Which status LEDs or firmware messages confirm the ReDriver and side-band translators are active after installation?

The adapter has no LEDs; verify operation by checking that the OS enumerates the connected device at PCIe 4.0 speed and that CLKREQ#, PERST#, WAKE# and PWRDIS signals pass through the bidirectional voltage-level translators without errors.

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