The best replacement for 2.0 is 3.0 usb.

The best alternatives to 2.0 are rated as following:
★★★★★  3.0 usb
★★★★  2.1 speakers
★★★★  2.1
★★  3.0
★★  firewire
★★  2.5 wrx
★★  5.1
★  3.0 cable modem
★  3.0 modem
★  3.0 flash drive
★  1.8t
★  esata
★  firewire 800
★  2.2 ghz
★  3.0 flash drives
★  web 3.0
  3.0 pci
  usb 3.0
  usb 1.1
  2.5 liter engine
  web 1.0
  usb 1.0
  5.1 audio
  3.8 genesis
  2.5 sti
  2.5 subaru
  docsis 3.0
  firewire speed
  3.0 cable
  vr6
  1.6 ecoboost
  1.2
  1.1
  1.0
  social media
  ieee 1394
  3.5
  .net 1.1
  elements 3.0
  2.1 pci
  3.0 usb flash drive
  2.3 evo
  tekno sct410
  firewire 400
  3.0 usb ports
  burner
  pod xt
  ie7
  omega hd
  2.2
  2.1 audio
  2.5 jetta
  ethernet

Your alternative for 2.0 is not listed? Suggest!
Speaking about 2.0, one probably shouldn't forget about usb 3.0.

Other search terms related to 2.0 and their ratings are:
★★★★★ usb 3.0
★★ sharepoint 2010
★ 3.0
★ richfaces
★ visual studio 2003
websphere 7
You have in mind a companion for 2.0 and it is not yet here? Propose!



Google Trends

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2.0
3.0 usb
2.1 speakers