HP A1027-60016 - CIO/HP-PB connector adapter board (L-SHAPED) - Adapts CIO connector to HP-PB backplane (MUST use CIO channel adapter) Retail
HP A1027-66515 - CIO channel adapter board - Activates upper HP-PB slot for CIO - Used with CIO/HP-PB connector adapter board & a CIO I/O - CIO Channel Adapter Board - Activates Upper HP-PB Slot for CIO - Used with CIO/HP-PB Connector Adapter Bd & a Retail