Amazon.com: SanDisk Ultra 400GB SDXC Micro Class 10 Works with RED Hydrogen One UHS-I Class 10 Bundle with Everything But Stromboli Card Reader : Electronics
Amazon.com: Made for Amazon SanDisk 400GB microSD Memory Card for Fire Tablets and Fire -TV : Electronics
SanDisk's 400GB MicroSD card is just $30 on Amazon
This 400GB microSD card is just $82 on Amazon for a limited time! - PhoneArena
Amazon.com: SanDisk 400GB Ultra microSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-400G-GN6MA & MobileMate USB 3.0 microSD Card Reader- SDDR-B531-GN6NN
Amazon.com: SanDisk 400GB Micro SDXC Memory Card Extreme Pro Works with GoPro Hero 8 Black, Max 360 Action Cam U3 V30 4K Class 10 (SDSDQXCZ-400G-GN6MA) Bundle with 1 Everything But Stromboli MicroSD