Memory Card 32GB compatible with Samsung Galaxy A30 SM-A305FD, microSDHC, Class 10, HighSpeed, SD Adapter : Amazon.co.uk: Computers & Accessories
How to insert SIM cards and SD card in Samsung Galaxy A30 - YouTube
Amazon.com: SanDisk 64GB SDXC Micro Ultra Memory Card Works with Samsung Galaxy A50, A40, A30 Cell Phone Class 10 (SDSQUAR-064G-GN6MN) Bundle with (1) Everything But Stromboli MicroSD and SD Card Reader :
Everything But Stromboli 64GB Azaire MicroSD Memory Card & Adapter Works with Samsung Galaxy Phones A Series A10, A10e, A20, A30, A50 Speed Class 10, U3, UHS-1, SDXC Plus (1) Micro &