The AVF6428U61E5667F9-AP 1GB PC2-5300 DDR2-667MHz non-ECC Unbuffered Memory Ram is a 1 GB ECC RAM module designed by Avant. It features a bus speed of PC2-5300 (DDR2-667) and is part of the NCR 4970455320 model. This memory module is suitable for use in computers and other electronic devices that require ECC memory for error correction. The non-ECC design means it does not include error-correcting code, making it ideal for systems that do not require that feature.