Innocard
Innocard PCIe x8 Gen 4 ReDriver to SFF-8654 8i gender changer
Converts SlimSAS 8i to PCIe 4.0 with a built-in ReDriver, clock buffer and signal repeaters for extended cable runs
- Changer TypePCIe Gen4
- PCIe x8 Gen 4 at 16 GT/s for high-speed data transfer
- Built-in ReDriver extends 8-lane signal reach over longer cables
- Clock buffer at 100 MHz drives extended trace lengths reliably
- SFF-8654 8i pin-out follows SFF-9402 Rev 1.1 standard
- Multiple buffer gates maintain link integrity across longer cables
PCIe Gen 4 ReDriver adapter
This Innocard adapter converts a PCIe x8 Gen 4 slot to an SFF-8654 8i SlimSAS connector with a built-in ReDriver. It supports signal extension at 16GT/s across eight lanes for high-speed storage or compute links. The board is designed and made in Taiwan and arrives new.
Interface limits and signal integrity
The adapter implements the SFF-9402 Rev 1.1 pin-out and includes a 100MHz clock buffer plus repeaters for SMCLK, SMDAT, PERST#, WAKE#, CLKREQ# and PWRBRK#. These buffers allow longer trace lengths and cable runs without degrading the Gen 4 link. Bifurcation support depends on the host platform capabilities.
Replaces passive gender changers
Use this instead of a passive gender changer when cable length or board trace distance exceeds the unaided reach of a PCIe Gen 4 x8 signal. The active ReDriver and side-band buffers make the jump worthwhile for backplane-to-add-in-card connections that need reliable 16GT/s operation over extended distances.
Highlights
- PCIe x8 Gen 4 at 16 GT/s for high-speed data transfer
- Built-in ReDriver extends 8-lane signal reach over longer cables
- Clock buffer at 100 MHz drives extended trace lengths reliably
- SFF-8654 8i pin-out follows SFF-9402 Rev 1.1 standard
- Multiple buffer gates maintain link integrity across longer cables
Specifications
| Changer Type | PCIe Gen4 |
|---|
Questions about this item
Does this gender changer come in any other lane counts or connector types?
The product is supplied as a PCIe x8 Gen 4 ReDriver to a single SFF-8654 8i connector; no alternative lane counts or connector variants are listed.
What does the 16GT/s rating mean for signal reach inside my server?
The on-board ReDriver and 100MHz clock buffer regenerate the 16GT/s differential pairs, allowing longer trace lengths and cables than a passive adapter while maintaining Gen 4 link integrity.
How does the SFF-8654 8i interface limit bandwidth in practice?
The SFF-8654 8i connector follows the SFF-9402 Rev 1.1 pin-out and carries eight PCIe 4.0 lanes, capping throughput at the x8 Gen 4 electrical limit of 16GT/s per lane.
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