A cable end connector assembly comprises a Serial ATA cable end connector, a IEEE 1394b cable end connector, and a cable inter-connecting the Serial ATA cable end connector and the IEEE 1394b cable end connector. The resistance elements may be annular resistors, and may provide the designer a greater degree of control of the system ESR. Whether a sample is large or not, the greater thermal homogeneity during the freezing process as well as the resulting crystal morphology yield a frozen sample which is exceptionally suited for lyophilization. The delayed signals are mixed in the waveguide coupler.