The 9th pin is recessed by 1.27mm in accordance with the VESA Display Data Channel Standard.
A metal shell provides EMI/RFI shielding and the grounding feature incorporates a two prong board lock for exceptional retention in the PC Board.
Mounting options for panel mount or connector mating include threaded inserts and threaded standoffs and the design is compatible with the mating requirements of MIL-C-24308, EIA RS-232 and RS-449.