The MXL4254A is a silicon proven Quad Gigabit SerDes implemented in digital CMOS technology. Each of the four channels supports data rate up to 4.25 Gbps. It is compatible with router-backplane links, PCI Express, SATA, RapidIO, 10 Gbps Ethernet（XAUI）, FibreChannel, SFI-5, SPI-5, and other communication applications.

The Mixel 4245 Features：
　‧　1.0 to 4.25 Gbps operation per channel
　‧　1.2V power supply, CMOS design
　‧　Low power dissipation
　‧　Minimal external components
　‧　Programmable voltage output swing at high-speed serial output
　‧　Programmable integrated termination resistors in transmitter and receiver.
　‧　Programmable Tx pre-emphasis and Rx post-equalization
　‧　Local and remote serial loop-back capability
　‧　Modular design to facilitate customization and process migration
　‧　Can be easily integrated into multiple Quads