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Green PCB add-in card with MCIO 38P connector and status LEDs

Innocard

Innocard EP4101 PCIe Gen5 gender changer

SKU CH-1Y2B-QDWKN

Converts PCIe x4 Gen 5 signals to MCIO 38-pin with a built-in ReDriver for 32 GT/s links up to 100 cm

  • Changer TypePCIe Gen5
  • Enables PCIe 5.0 at 32 GT/s over distance with integrated ReDriver providing up to 24 dB equalisation at 16 GHz
  • Supports server BMC out-of-band management through PERST#, WAKE# and CLKREQ# signal translation for remote reset and wake control
  • Converts MCIO 38-pin to PCIe x4 Gen5 and U.2 with 100 cm cable for flexible server chassis routing
  • Built-in clock buffer at address 0x6C and SMBus switch at 0x71 maintain signal integrity across longer traces
  • 3 V input with TVS protection, 3 A load switch and reverse-current safeguard protects downstream devices

PCIe Gen5 MCIO Adapter

The Innocard EP4101 converts a PCI Express x4 Gen 5 slot to an MCIO 38P interface using a built-in ReDriver. It includes a 100cm cable that connects the add-in card to a U.2 (SFF-8639) device. The adapter is designed for server BMC management and out-of-band control.

Signal Integrity Limits

The on-board ReDriver provides equalization up to 24 dB at 16 GHz to maintain 32 GT/s across four differential lanes. A PCIe 100 MHz clock buffer drives the longer PCB traces and the 100cm cable without signal degradation. SMBus switch, I/O expander and clock request translators extend management signals over the same distance.

Server-Grade Build && Connectors

The card uses 30µ gold connectors on the MCIO 38P side and includes bidirectional TVS protection on the 3.3 V input. A 3 A load switch with reverse-current protection powers the link. Four green LEDs show AIC ready, WAKE#, CLKREQ# and general status at a glance. The assembly is designed and made in Taiwan.

Highlights

  • Enables PCIe 5.0 at 32 GT/s over distance with integrated ReDriver providing up to 24 dB equalisation at 16 GHz
  • Supports server BMC out-of-band management through PERST#, WAKE# and CLKREQ# signal translation for remote reset and wake control
  • Converts MCIO 38-pin to PCIe x4 Gen5 and U.2 with 100 cm cable for flexible server chassis routing
  • Built-in clock buffer at address 0x6C and SMBus switch at 0x71 maintain signal integrity across longer traces
  • 3 V input with TVS protection, 3 A load switch and reverse-current safeguard protects downstream devices

Specifications

Changer TypePCIe Gen5

Questions about this item

Should I choose the MCIO 38P AIC or the MCIO 38P to U.2 cable for my build?

The EP4101 is a kit: the AIC plugs into a PCIe x4 Gen 5 slot and provides an MCIO 38P port, while the 100CM cable connects that port to a U.2 (SFF-8639) device.

What does the 32GT/s 4 lanes figure mean once the adapter is installed in a server?

It means each of the four differential pairs runs at PCIe 5.0 speed, giving a 32 GT/s raw data rate per lane, and the on-board ReDriver adds up to 24 dB equalisation at 16 GHz to keep the link stable over the 100CM cable.

Which interface standard does the MCIO 38P connector follow and what does it cap in practice?

The MCIO 38P follows SFF-TA-1016 and carries four PCIe 5.0 lanes plus side-band signals; the practical ceiling is the 32 GT/s per lane limit of the Gen 5 link and the 3.3 V 3 A power budget supplied through the AIC.

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