2 Neutrik NC3MD-L-BAG-1 Male 3 Pin XLR Chassis Panel-Black Case Silver Contacts

You can't go wrong buying Neutrik connectors. They are far superior to all other brands I've tried.

As I discovered, having ordered a set of Cheap XLR to RCA patch cords for a REVOX PR99 mk3 AFTER I’d installed these and another set (input/output).The off-brand that didn’t fit these well - they wouldn’t “click” in. Didn’t trust they were fully engaged, So I bought WBC’s mogami wire cordsFor a few bucks more.You have to enlarge the hole in the pr99 jack board with a step drill to get these to fit though. They mostly cover the gap and shiny aluminum. Little touch-up paint from hobby shop takes care of that. I used rivets and backing washers to fit.Now everything’s solid. “Click.”