Technical Specifications > Using Port for the Scanner Memory Device Specifications You cannot use the following devices: ❏ A device that requires a dedicated driver ❏ A device with security settings (password, encryption, and so on) Epson cannot guarantee all operations of externally connected devices. Using Port for the Scanner The scanner uses the following port. These ports should be allowed to become available by the network administrator as necessary. 242 Devices Maximum Capacities USB Flash Drive 2 TB (formatted in FAT, FAT32, or exFAT.)