The 25cm long design makes it flexible and long enough to expand and read SD cards.Support products that need to extend the memory card TF (-SD) (such as data upgrade of car GPS navigator, data update of some instruments and equipment, etc.)Fast reading speed: SD card expansion never affects the reading and writing speed of the machine, keeping the efficiency and safety of the machine.Also works as an extender or linker when your device has a built-in -SD memory card slot and you need to expand it externally to use a larger SD memory card.The cables are flexible and easy to install.Type: extension cordWorking voltage: DC 12vInterface: -SDSupport memory card: -SD TFInstallation : externalcolor:White+blackMaterial:ABS+FFCsize:25cmPackage Contents:1 x Extension CableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.