Ideal for use in cell phones, handheld GPS units, gaming systems and more. Highly-compatible card works in any device with a MicroSD slot. Fast data transfer rates offer quick file uploading and fast shot recovery. Write/protect switch protects data from accidental overwrites and erasures. Storage Capacity: 4 GB; For Use With: Electronic Devices; Memory Card Type: MicroSD; Capacity Range (Data): N/A.