The 25 cm long design makes it flexible and long enough to extend and read SD cards. Support that need to use to extend the memory card SD/SDHC/SDXC (such as data upgrade of car GPS navigator, data update of some instruments and equipment, etc.) Fast reading speed: SD card extension never affects the reading and writing speed of the machine, keeping the efficiency and safety of the machine. It can also be used as an expander or linker when your device has a built-in micro-SD memory card slot and you need to expand it externally to use a larger SD memory card. Cables are flexible and easy to install. Type: Extension cable Operating voltage: DC 12v Interface: SD Support memory card: SD Installation : external color:Photo color Material:ABS+FFC size:25CM Package Contents: 1 x Extension Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.