Uses: Convenient for external use of micro SD card in devices, such as: device upgrades, quick replacement of micro SD card, heat dissipation, protection of the original card slot (Compatible with: 3D printers, GPS navigation, computers, cell phones, Raspberry Pi) High quality material: FFC flexible circuit board with hole design, built-in capacitor and resistor, more stable transmission speed Includes: 1 extension cable (9.8 inches/25 cm), 2 double-sided adhesive tapes, 2 screws Note: Memory card is not included, when using it, please insert the micro SD card into the adapter first, then plug it into the device to use it, when replacing another TF card, please unplug the end of the micro SD card from the device first, then replace the micro SD card, or reboot the device after installation, does not support hot-swap Warranty: 1 year no reason return service, 3 years warranty This is a FFC material flexible micro SD card flexible extension cable extender, the cable can be deformed and bent at will, and you can use screws or double-sided tape to fix the card holder, stable transmission speed. Convenient for all kinds of equipment micro SD card extension external use, such as: equipment upgrades, quick change micro SD card, heat dissipation, protection of the original card slot (compatible with: GPS navigation, drones, computers, cell phones, raspberry pi and 3D printers, etc.)