This CF (compact flash) card is compatible with digital cameras that support Ultra DMA. Specifications : Storage capacity : 16GB Supply voltage : 3.3 / 5 V Provides the fastest read/write speeds and highest performance. Plug-and-play compatible. Dimensions (W x H x D) : 43mm (1.7'') x 36mm (1.4'') x 3.3mm (0.13'')