The Skyís the limit my friend.
The Lucid 2 can take up to a 64GB Micro SD memory card.
If youíre trying to pick a good one and want to know what to look for when buying a memory card then you might be interested in Choosing the Best SD card for Android phones
it will explain about choosing a fast affordable and durable SD card for your Lucid 2 and what to look for when shopping for one.
If you have any other questions then donít hesitate to come back to the forums and ask. We have a lot of great knowledgeable people here.
Enjoy the extra storage on your Lucid 2 ChaunceyK