The Olympus CB-MA3 Digital Camera Power Coupler permits the use of an AC adapter to power Olympus digital cameras that do not have a connector for an AC adapter. The Power Coupler connects to the digital camera via the USB port and provides a plug to use the Olympus E-7AC AC Adapter to power the camera. The Power Coupler also has a USB data thru-put connection so users can download images to their computer while using the power coupler to save battery power during the download.