Are you developing a complex IoT device with your MKR board and running out of memory? Add Flash memory and microSD storage to your MKR board, and allow over-the-air updates, with the Arduino MKR MEM Shield.
The Arduino MKR MEM shield will allow you to add more flash memory and storage. It provides 2-megabytes of flash memory. It also includes a slot for adding a microSD card to store several gigabytes of storage. This can allow you to store data for later analysis.