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A quad 1-10 Gb/s serial transceiver in 90 nm digital CMOS technology is presented in this paper. A combination of transmitter pre-emphasis and receiver equalization is used. It can be used for different data rates and short-reach/long-reach applications with low overhead in area and power consumption. It is able to run across a 60-inch FR4 PCB trace with BER<10-12 at 3.125 Gb/s while consuming 70 mW/channel. At 10 Gb/s, it consumes 98 mW/channel to run across a 10-inch FR4 PCB trace and 90mW/channcl to run across a 4-inch FR4 PCB trace. Its die area is 1.6 mm2.