Kramer Electronics SD-7108 SD-7108 is a high performance distribution amplifier for multistandard SDI (SMPTE 259M) video signals. It takes one input, provides reclocking and equalization and distributes the signal to eight identical outputs and one parallel ECL output. Level (Gain) Control. Resolution - 8 and 10-bits (automatic). Parallel ECL output on a DB-25 connector. Standard 19inch Rack Mount Size - 1U.