Transcend JetFlash 790 - USB flash drive - 512 GB - USB 3.1 Gen 1. The capless JetFlash 790 USB 3.1 Gen 1 Flash drive utilizes a retractable USB connector to shield your data while in transit - simply push at the colored slider to slide the connector out. The JetFlash 790 sports the USB 3.1 Gen 1 interface with up to 512GB capacity. This combination of blazing fast data transfer rates and substantial storage space make it easier than ever to store, carry and share all your digital files wherever you go.