Features: brand new and high quality AT45DB321E is a 2.3V minimum, serial-interface sequential access Flash memory ideally suited for a wide variety of digital voice, for image, program code, and data storage applications. In addition to the main memory, the AT45DB321E also contains two SRAM buffers of 512/528 bytes each. The buffers allow receiving of data while a page in the main memory is being reprogrammed. Interleaving between both buffers can dramatically increase a system's ability to write a continuous data stream. The AT45DB321E also supports the RapidS serial interface for applications requiring very high speed operation. Its 34,603,008 bits of memory are organized as 8,192 pages of 512 bytes or 528 bytes each. The device is optimized for use in many commercial and industrial applications where high-density, low-pin count, low-voltage, and low-power are essential. Uses a serial interface to sequentially access its data. The simple sequential access dramatically reduces active pin count, facilitates simplified hardware layout, increases system reliability, minimizes switching noise, and reduces package size. Specifications: Material:Plastic+Metal Size:Approx. 5x8 mm/0.19x0.31 inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 5x Memory Chip