This dual usb c sd card reader includes one SD slot and one Micro SD/TF slot, designed for fast transfer speeds of 20MB/S~30MB/S. It supports two-way transfer between storage card and device, letting you quickly manage photos, videos, and documents in your “Files” app. Plug and play with no apps or internet required. Built from ABS material, it is durable for heavy daily use and portable for work, study, or travel. Compatible with for iPhone16, for iPhone15 Pro Max, for iPad 10, for iPad Air4/5, for iPad Mini6, for iPad Pro 12.9, compatible for Samsung Galaxy S25/S24/S23/S22/S21/S20 Ultra, and other USB C phones, tablets, and computers. It is also compatible with all USB-C interface devices. Please note! This card reader cannot read two slots at the same time. This prevents interference and ensures stable data transfer. The specific reading speed depends on the memory card!