GigPeak Inc. (Acquired by IDT)GigOptix Inc. offers single- and quad-channel limiting 28-Gb/s direct modulated laser driver chipsets for data center and cloud computing applications. The single-channel HXT42100 and quad-channel HXT42400 drivers respectively enable lower-power 28-Gb/s SFP28+ and 100-Gb/s QSFP28+ Ethernet modules, or active optical cable systems. The drivers also provide 32- and 128-GFC (generic flow control) support, respectively, for fiber channel storage systems. 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