Innocard PCIe x4 Gen4 ReDriver SFF-8654 4i AIC gender changer

PCIe 4.0 x4 ReDriver adapter

The Innocard adapter converts a PCI Express 4.0 x4 slot to a SlimSAS 4i SFF-8654 connector with an integrated ReDriver. It is built for rack servers, microservers, tower servers and high-performance computing platforms that need to extend signal reach. The card includes clock, SMBus, PERST#, WAKE#, CLKREQ# and PWRBRK# buffers to maintain link integrity over longer cables. A green D3 LED indicates when the add-in card is ready.

Suited for extended PCIe cabling

This adapter suits builders who must route PCIe 4.0 x4 signals beyond standard trace lengths using SFF-8654 cabling. It is not for systems that lack a full-height PCIe x4 slot or that require a different connector form factor such as U.2 or M.2. Buyers needing passive gender changers without signal conditioning should look at simpler alternatives. The card targets server and accelerator installations where signal degradation over distance is a concern.

Sustained link stability under load

The onboard ReDriver and clock buffer continuously equalise and retime the PCIe 4.0 x4 lanes during prolonged data transfers. This prevents eye-closure that would otherwise appear after extended cable runs under heavy I/O. The SMBus and side-band buffers keep management and power-break signals reliable throughout the session. The result is a link that remains at the negotiated 4.0 speed without retraining during sustained workloads.