Come and see our amazing products.Made of durable aluminum alloy material, built-in advanced smart chip with the best heat dissipation function; SD card, Micro SD card can be used at a fast transfer speed up to 104M/s, capacity up to 512G. Easy to transfer photos shooting, videos by your camera from cards to laptop in just seconds. Speed up to 5Gbps, compatible with USB 3.0 2.0 USB deive, flash drive, wi-fi adapter, mouse, keyboard, low-speed devices. Three USB 3.0 interfaces are independently controlled by advanced chips. 3.46" L x 0.94" W x 0.079" H Pls confirm further with us if any query about packing info, inventory status and time schedule.