Bill Bronchick's Self Directed IRA from checking act??

[Matt Maluchnik]

I was at an event where the speaker (Bill Bronchick) mentions he uses his Self-Directed IRA to invest in properties; however, I can't recall the term... But he basically said he runs it out of his own check book. Almost as if he doesn't have a custodian or company he works with... He does it himself? Maybe to save money or move quicker? I'm not quite sure, anyone know about this?