Not quite sure if you mean the actual hole /socket that is on the side of ur machine, but if so, here is the part you need from one of several suppliers. https://www.sewingpartsonline.com/jack-supply-assembly-brother-xc9830021.aspx “ Approximate price from this site $20.
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Not quite sure if you mean the actual hole /socket that is on the side of ur machine, but if so, here is the part you need from one of several suppliers. https://www.sewingpartsonline.com/jack-supply-assembly-brother-xc9830021.aspx “ Approximate price from this site $20.