The product is an AVF6456U61E5667F9-AP 2GB PC2-5300 667MHz DDR2 DIMM NCR 4970455321. It is a memory module with 2GB capacity, DDR2 type, operating at a speed of 667MHz. The specific model number is included in the title, indicating compatibility with NCR systems. The brand of the product is categorized as general, making it suitable for various computer systems and networking devices.