Package Include:<br>1 2pcs x 1284GB tf cards<br>2 2pcs free OTG USB adaptor<br><br>SPECIFICATIONS:<br>&gt; Capacities: 128 GB x 2pcs<br>&gt; Performance: up to 80MB/s read (C10: 10MB/s minimum data transfer,C4:4MB/s min. data transfer)<br>&gt; microSD Dimensions: 11mm x 15mm x 1mm<br>&gt; Operating Temperature: -25°C to 85°C<br>&gt; Storage Temperature: -40°C to 85°C<br>&gt; Voltage: 3.3V<br>&gt; Warranty: Lifetime with free technical support<br><br><br>Tips:<br>How to verify the Capacity and Speed of the memory card?<br>1). Please use quaity USB 3.0 card reader to verify all memory card by H2testw on PC. Real memory <br><br>card should pass H2testw with no error.<br>2). Please dont use cheap card reader to test Micro SD card, speed of Micro SD card will be <br><br>reduced by low quality card reader.<br>3). Micro SD memory card speed is greatly affected by card reader and the capacity you choose , <br><br>USB port ect. Low quality device will 100% slow down card speed,1MB=1000KB.
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