CGA-QD is a connection Adapter allowing QDC components to mate with CGA-680 components.

The CGA-680 to QDC Adapter (CGA-QD) P/N 410810 - is a CGA-680 to Quick Disconnect adapter allowing earlier high pressure nitrogen backpack cylinders P/N 410580 fitted with CGA-680 connections to connect with the later QDC systems and components from CvI, such as the NBSS, NBK-4, NBK-5, LPSK-1A, HPSK-1A, CFK-1 and Late model CVB MANCS-1C Mobile Air/Nitrogen Charging Station.