Significant population segments in developing countries have very limited access to basic financial services, such as bank accounts, savings or insurance. Meanwhile, the use of ICT is increasingly becoming an intrinsic part of banking business, rendering financial services easier and cheaper to develop and deliver. This paper focuses on ICT-based correspondent banking outlets, a technology that appeared in Brazil in recent years, which is considered a feasible alternative for delivering financial services to the poor. The aim of this paper is to investigate how the use of this particular technology was structured and how it has evolved over time to deliver an increasingly complex range of services. A conceptual model, combining three theoretical approaches, is proposed to make possible an original reading of the use of correspondent banking technology in Brazil and its implications for microfinance.