An SMB Client is a software application that allows computers to access shared resources on a network using the Server Message Block (SMB) protocol. This protocol enables file and printer sharing between devices, making it easier for users to collaborate and access data stored on other computers or servers. Typically found in Windows operating systems, the SMB Client facilitates communication between a user's device and a server, allowing for seamless data transfer. It supports various functions, such as reading and writing files, managing directories, and printing documents over the network, enhancing productivity in both home and business environments.