Does Citibank allow ACH?

As a cryptocurrency and finance enthusiast, I'm often curious about the various payment options available to consumers. One such option that has piqued my interest is the Automated Clearing House (ACH) network, which enables direct bank-to-bank transfers. Given Citibank's reputation as a major financial institution, I'm wondering if they offer ACH services to their customers. Would the ability to initiate ACH transactions provide Citibank clients with more flexibility and convenience in managing their finances? I'm curious to know if this functionality is available and, if so, how it might enhance the overall banking experience.