Transcend Announces 1TB JetDrive Lite 330 Expansion Card for 14-inch and 16-inch MacBook Pro - MacRumors
Amazon.com: Transcend 128GB JetDrive Lite 330 Storage Expansion Card for 13-Inch MacBook Pro with Retina Display (TS128GJDL330),Black, Silver : Electronics
These JetDrive Lite 330 SD cards give your new Apple M1 MacBook Pro models 'hidden' storage: Digital Photography Review
Transcend JetDrive™ 500/520/720/725 Installation Video - YouTube