Is it possible to use QSFP28 modules in the "Intel Stratix 10 TX Signal Integrity Development Kit" board? I need some information on this issue in terms of setup and software to enable this.

Regular Contributor

6 years ago

Hi,

QSFPDD is backward compatible with QSFP28

The QSFP-DD optical transceiver is also forward/backward compatible with QSFP, QSFP28 optical transceiver, AOC/DAC and so on.

Q: WHAT WILL THE MECHANICAL INTERFACE LOOK LIKE; CAN I PLUG A CURRENT QSFP INTO THE NEW CONNECTOR/CAGE?
A: The mechanical interface for QSFP-DD on the host board will be slightly deeper than for QSFP28 to accommodate the extra row of contacts. The height and width will be identical to the QSFP form factor enabling system designers to achieve identical system port count densities for QSFP28 or QSFP-DD based designs. Yes, you can plug any current QSFP module into the QSFP-DD 1×1 or the 2×1 cage / connector combinations.

Regards,

dlim

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