Amazon.com: Transcend 16 GB Micro Memory Card, Compatible with Samsung Galaxy S4 Mini Cell Phone Memory Card 16GB microSDHC Memory Card with SD Adapter : Electronics
Samsung Galaxy S4 mini (I257) - Available memory - AT&T
Amazon.com: Professional Ultra SanDisk 32GB MicroSDHC Card for Samsung Galaxy S4 Mini Smartphone is custom formatted for high speed, lossless recording! Includes Standard SD Adapter. (UHS-1 Class 10 Certified 48MB/sec) : Electronics
New for Samsung Galaxy S4 Mini I9190 I9195 SIM Card and SD Card Reader Contact Flex Cable - AliExpress
Install SIM, memory card and battery in Galaxy S4 mini, audio: English - YouTube
Samsung Galaxy S4 Mini SGH-I257 16GB AT&T Branded SGH-I257 B&H
Samsung Galaxy S4 mini (I257) - Available memory - AT&T
Samsung Galaxy S4: How To Install & Format a Micro SD Card - YouTube