Spectra7 Microsystems Inc. announced that it will be demonstrating the QSFP28 Double Density (QSFP28-DD) Active Copper Cable (ACC) utilizing the company's new GaugeChanger PlusTM GC2502 silicon. Spectra7 will begin sampling GaugeChanger PlusTM QSFP28-DD active copper modules this quarter to major data center cable assembly companies. The QSFP28-DD standard doubles the number of copper conductors in the same physical interface dimensions as QSFP28. This significantly reduces the conductor size (known as wire gauge) that can be used. By utilizing Spectra7's active cable silicon technology, the signals in the data center can be transmitted 3-5 times as far using the same low cost copper media. Due to the linear design of the GC2502, these modules support both NRZ and PAM-4 signaling, enabling either 200G or 400G ethernet transmissions over the same cable.