Questions about Dell AA075845

Yes, according to this information from Dell, this module is compatible with the Optiplex 3070: https://www.dell.com/support/manuals/de-at/optiplex-3070-desktop/opti3070_sff_setup_specs/memory?guid=guid-e34c943c-4023-4f5b-a559-d2b5f4cf7604 Dell recommends that you take special care not to mix different RAM sticks with the OptiPlex 3070. In this case, it is best to use 2 of this module at once 👍

Here is a list of possible products: https://www.digitec.ch/de/s1/producttype/ram-2?opt=v10-7804%3A16000000000%7Cv10-7967%3A1&pdo=10-419%3A284421%7C10-420%3A185104&tagIds=76