App note from ON Semiconductors about linear redrivers setting. Linear redrivers are used in systems in order to improve high speed signal integrity in systems transmitting digital data. Link here (PDF)
Linear redrivers are used in many applications that transmit data at high speeds. They can be found on computer motherboards, gaming consoles, graphics cards, cables, and any other environment that transmits digital data. More specific examples of common applications using linear redrivers include USB, DisplayPort, HDMI, PCIe, and SATA ports. Deployment contexts range from data center interconnects and digital signage to the commercial gaming terminals that run bonus sans wager casino platforms.