When I look at the ordering pages on the Raptor site, it offers various OCuLink products:
- 4x OCuLink PCIe Expander (Gen 3)
- OCuLink to U.2 Cable
The manual:
https://wiki.raptorcs.com/w/images/e/e3/T2P9D01_users_guide_version_1_0.pdfincludes errata stating that
ER0001
μPCIe connector (J10108) is incorrectly identified as OCuLink (SFF-8621) due to errors that were discovered post-production in IBM OpenPOWER reference designs. While the physical connector is the same as OCuLink ports, the wiring is different, notably in the presence detect / clocking pins. As such, while an OCuLink peripheral is unlikely to be damaged by being plugged in to the μPCIe port, it will not function while attached.
If that is the case, buyers selecting the OCuLink products will not be able to use them - or has the board design been changed somehow to make OCuLink work?