Product Type microSDXC Memory Card Interface UHS-I (SDR104) Class U1, V10, Class 10 Usage Application Surveillance (IP/Home/Network) cam, Dash cam, Body cam, and other always-on applications. Series PRO Endurance Capacity 128GB (Actual storage capacity may be lower than the labeled capacity. Part of the storage may be used for system files and other storage control purposes.) Memory Speed Read: up to 100 MB/s Write: up to 40MB/s (Performance results are based on internal testing conditions. Read/write speeds may vary by host device.) HR23-DZ-141713, HR23-DZ-141713