Product 1.Easy to use, plug and play. 2.Water-resistant, anti-magnetic, shockproof, high or low temperature resistant. 3.It Adopts Speed Class UHS-I(U1) and Class 4(C4). 4.The TF card uses to expand capacity for mobile phone and tablet etc. 5.With SD card adapter, the micro SD card can be used as a full-sized SDHC card, and compatible with devices featuring SD or TF card slot. Specification： Storage Capacity: 256MB Transfer Speed: 4MB/s(read); 10MB/s(write) Product Dimension: 15*11*1（mm） Working Voltage: 2.7-3.3V Working Temperature: -25℃ to 85℃ Storage Temperature: -40℃ to 85℃.
eBay