The GC864-QUAD V2 is available with an integrated SIM Holder. I think the SIM holder is one of these: http://www.amphenol.de/unterserie/mobile-connectors/C707A/40.html Can you please confirm which part number is used on the GC864-QUAD V2 so that we can secure a second source in-case we sometimes purchase the GC864-QUAD V2 without SIM holders.
The right SIM holder is: Amphenol C707 10M006 522 2, see attached pdf.