The GX66471 is a very low-power, high-performance, quad-channel linear driver, designed for 200G/400G optical transmitters for metro applications. The GX66471 is a small form factor (SFF) packaged surface mount device (SMD) with differential inputs and single-ended outputs consisting of 4 x 64Gb/s broadband amplifier channels, each capable of driving a linear output voltage of 4.5Vpp, suitable for multi-level modulation applications.