OCuLink Riser for the Supermicro AIOM Slot

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Here is the finished card in Adom's 3D
viewer:

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seventy six by one hundred fifteen
millimeters, six layers,

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cut to the OCP 3.0 small form factor
outline.

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Along the outer edge sit four Amphenol
OCuLink receptacles,

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one for each PCIe x4 port.

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There was no Adom component page for this
connector, so Claude made one.

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We will look at it in a moment.

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Just behind the connectors,

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a TI ESD array guards each port's reset
and clock lines against static.

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On the left edge is the control logic.

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The SN74LVC125 buffers each port's reset
line,

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and the TPS3808 tells the server when the
card's power is good.

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This shift register is the OCP scan chain,

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which the server reads for the card's
present and status bits.

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Next to it, an EEPROM holds the card's
identity, the second new Adom component
page.

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At the other end are the gold fingers:

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one hundred sixty eight contacts that plug
into the AIOM slot.

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Underneath, the silkscreen names the card,
says to set the slot to 4x4 in the BIOS,

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and points back to this page.

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That is the whole card: passive, four
ports,

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and ready to order from the files on this
page.

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Now the two component pages Claude made.

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First, the Amphenol OCuLink receptacle,

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with its Mouser and DigiKey part numbers
so it can be ordered.

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Its 3D model is a simplified body built
from Amphenol's drawing,

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because the real model sits behind an
Amphenol login.

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The page carries the full pinout from the
SFF-9402 spec:

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the transmit and receive pairs, the
reference clock, and the reset.

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And a KiCad symbol and footprint drawn
from Amphenol's land pattern,

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ready for anyone's next board.

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A provenance section lists where every
file came from,

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and says plainly which parts were made by
AI.

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Second, the ROHM 64 kbit EEPROM that
stores the card's identity for the server.

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A standard SOP-8 package, with a generic
body from KiCad's 3D library.

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Every pin is listed from ROHM's datasheet,

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including the address pins and the write
protect.

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Plus its symbol and footprint.

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Both pages are public, so the next design
that needs these parts can just use them.