The shipment via Amazon as always exemplary. Two days after ordering the memory was in the mailbox. The memory came in a sturdy envelope and was itself packaged again in an easy-open blister.
The upgrade of the Minis also went smoothly. Took less than 5 minutes (incl. Reboot).
In virgin memory there from me basically the tip, gently but bravely to wipe again with a dry, lint-free cloth over the contacts. This removes any residues of production and saves you a lot of frustration. From my own experience in technical support, I know that at least 80% of the declared defective memory modules are not defective, but only at the factory have dirty contacts. Once over it wipe, finished. Just please care that you tear off any components here.