At 20 cents per GByte, the memory card from Lexar's Professional Silver Series is the most expensive 256 GByte card in this test - and the Lexar reader adds another 30 euros to the price. In the speed measurements, however, it was still not at the top: we were able to tickle out a maximum of 155 MByte/s; in sequential writing, on the other hand, it was able to keep up with the top group with just under...