Alaska C 88X7120

Designed to improve performance and bandwidth in the data center

Alaska C 88X7120

The Alaska 88X7120 is a fully integrated single chip Ethernet transceiver that performs retiming functionality for two ports of 400GbE, and PHY/retiming functionality for four ports of 200GbE, 8 ports of 100GbE or 16 ports of 50GbE, 25GbE, 10GbE and 1GbE. The device supports full duplex transmission at all supported speeds, over a variety of media including optics, passive direct attach cables and copper backplanes.

Key Features

  • Dual 400G Ethernet Retimer, Quad 200G PHY/Retimer
  • 16 port 50GbE, 25 GbE, 10GbE, 1GbE PHY/Retimer
  • Quad 100GbE Gearbox for translation from 802.3bj 4x25G NRZ to 802.3cd 2x50G PAM4
  • Low latency 16 channel transparent retiming functionality in PAM4 and NRZ modes
  • Long Reach Host and Line interface serdes
  • Fully symmetric architecture with FEC capability on host and line interfaces
  • Support for IEEE Auto-negotiation and Training protocol
  • Ethernet Packet and PRBS generation capabilities, and eye monitoring capability on all high speed interfaces


  • 100G, 50G, 25G Top of Rack Datacenter switches
  • 400G and 200G Ethernet line cards