This is a lovely digital photo frame from Sony. I auditioned several before settling on this one, and chose this one because of the image quality. Photos appear very natural on the display, without the odd colours or washing out I saw with other screens. It will auto-rotate images when you rotate the screen from portrait to landscape orientation, which is a nice touch.
The unit is a cinch to set up, insert an SD card with your images and switch on, and away you go. Operation is pretty intuitive via the small remote control, which is probably a good thing as the supplied instructions are sparse and written in Japanglish.
There are 2 interfaces - SD as mentioned and also a USB port. You should note that the USB port is to connnect the unit to a PC for uploading images to the frame's internal memory, and is an almost square USB-B plug port. It won't accept a USB memory stick direct (which is a USB-A plug, usually) - you have to plug the stick into your PC and link to the frame via another USB cable. Then just drag and drop files to the frame memory.
Overall? Good value for money, and very natural images.