The best replacement for gigabit is gigabyte.

The best alternatives to gigabit are rated as following:
★★★★★  gigabyte
★★★  megabit
★★  fast ethernet
★★  10 100
★★  ethernet
★  usb 2.0
★  10/100 switch
★  esata
★  100
★  mbps
★  100mbps
★  10/100
  firewire 800
  usb 2
  10 100 switch
  fiber
  100mb
  wireless n
  dual band
  atm
  100 mb
  megabit bigger
  non gigabit router
  terabit
  ethernet ports
  100baset

Your alternative for gigabit is not listed? Suggest!
Speaking about gigabit, one probably shouldn't forget about cat5e.

Other search terms related to gigabit and their ratings are:
★★★★★ cat5e
★★★★★ cat5
★★★★ poe
★★ cat5 cable
You have in mind a companion for gigabit and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of gigabit in all years. Click on graph for more.
gigabit
gigabyte
megabit