Innocard
Innocard PCIe x4 Gen4 with Diodes to OCulink 4i gender changer
A PCIe 4.0 x4 adapter with integrated redrivers and buffers converts an OCuLink 4i port for extended cable runs in servers and HPC systems
- PCIe Gen 4 signal integrity maintained through integrated ReDriver at 16GT/s
- OCulink 4i (SFF-8612) to PCIe conversion with SFF-9402 Rev1.1 pin-out
- 100MHz clock buffer enables longer cable runs without signal loss
- Comprehensive side-band buffering for PERST#, WAKE#, CLKREQ#, PWRBRK# over distance
- D3 green LED indicates host bus adapter ready status
PCIe x4 Gen4 adapter
This Innocard adapter converts an OCuLink 4i SFF-8612 connector to a PCIe x4 Gen 4 interface. It is built for rack servers, microservers and high-performance computing setups that need to extend PCIe signals over longer cables. The board integrates a ReDriver, clock buffer and multiple bus buffer gates to maintain signal integrity at 16 GT/s across extended trace lengths. A green D3 LED indicates when the host bus adapter is ready.
Signal extension capacity
The adapter supports the PCI Express Base Specification Rev 4.0 and complies with SFF-8612 Version 3.5 and PCIe OCuLink 1.0a. It handles 16 GT/s differential pair signals and drives a 100 MHz clock buffer for longer cable runs. The design includes bidirectional SMCLK and SMDAT buffers at 3.3 V, plus PERST#, WAKE#, CLKREQ# and PWRBRK# bus buffer gates. Builders needing more lanes or a different connector type must look elsewhere.
Build integration needs
The card fits Windows 7, Windows 8, Windows 8.1, Windows 10 and UEFI 2.3.1 or later environments. It requires an available OCuLink 4i port on the host side and a matching PCIe x4 slot or cable endpoint. The integrated buffers free the system from strict trace-length limits, allowing flexible placement of storage controllers or accelerators in tower servers and hardware-accelerator chassis.
Highlights
- PCIe Gen 4 signal integrity maintained through integrated ReDriver at 16GT/s
- OCulink 4i (SFF-8612) to PCIe conversion with SFF-9402 Rev1.1 pin-out
- 100MHz clock buffer enables longer cable runs without signal loss
- Comprehensive side-band buffering for PERST#, WAKE#, CLKREQ#, PWRBRK# over distance
- D3 green LED indicates host bus adapter ready status
Specifications
No published specifications for this item yet.
Questions about this item
Will this PCIe x4 Gen 4 adapter work with my existing PCIe Gen 3 motherboard slot?
The adapter complies with PCI Express Base Specification Rev 4.0 and uses a ReDriver to extend 16 GT/s signals, so it will operate at Gen 3 speeds in a Gen 3 slot while maintaining signal integrity over longer traces.
How do I verify the adapter is functioning correctly after installation?
The D3 green LED illuminates when the Host Bus Adapter is ready, confirming power and link training have completed successfully on the PCIe x4 Gen 4 interface.
Does the package include an OCulink cable or must I purchase one separately?
The adapter provides a built-in SFF-8612 connector defined by SFF-9402 Rev1.1; an OCulink cable is not included and must be sourced separately for your rack server or storage application.
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