Amazon.com: Sony PRS-T2 6" Touchscreen Digital eBook Reader w/E-Ink Technology, Built-in Wi-Fi & microSD Card Slot (Black) : Electronics
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Amazon.com: Likebook P6 E-Reader, 2021 New 6 Inch 300PPI HD E-Ink Screen Ereader, Android 8.1, 1GB+16GB, Expandable Micro SD Card up to 128GB, Support Google Paly Store ,PDF Reader, high-Speed Data Transfer :
Should e-Reader companies support SD Cards? - Good e-Reader