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USB active Eextension cable for RJ45 20meterUSB A (M)TO USB A(M) USB A (M)TO USB B(M) USB A (M)TO USB A( F)& MINI USB 4/5PIN USB active Eextension cable for RJ45 20meterActive cables are copper cables for data transmission that use a silicon chip (semiconductor) to boost the performance of the cable. Without a chip, a cable is considered a 'passive' cable. Passive cables always degrade the data ...