Detail :
Auto Smart backup while charging (Photos?videos?contacts, calendar) for your iPhone! Simply insert the micro SD card in One Link Micro SD Backup Adapter,and connect to the charge and iOS device, your iOS device will start backup and charging at the same time.
Instant automatic backup when charging (photo, video, contact, calendar) 1. Charge while backing up without additional operations2. USB 3.1 Gen 1 5GB/s high speed transmission3. Support microSDHC, microSDXC UHS-I, UHS-II (capacity 2TB, read speed 20-90MB/s)4. Momax Backup App is easy to operate and can be backed up manually5. Color: BlackSpecification
Read Speed: 20-90MB/s
Result may vary with your micro SD Card