A-Data Classic CH91

Released January, 2009

Product Shot 1A-Data's Classic CH91 is a portable external hard drive intended mainly for use with notebooks. It is USB powered and uses plug-and-play to simplify use and increase compatibility. It also has a small form factor, measuring 2.5" at its longest, and comes in a variety of stylish metallic colours.

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It is also available in four different capacities, the maximum being 640GB. Each hard drive comes with a suede carry pouch. HDD format is 2.5" SATA.


  • Compact, 2.5"
  • Portable
  • Up to 640GB capacity
  • USB powered
  • Plug-and-play
  • Compatible with Windows XP, Vista, 7, Mac OS X 10.4 and up, Linux Kernel 2.4
  • LED power indicator/access light 
  • 480 Mbps transfer


  • 250GB - MSRP $80
  • 320GB - MSRP $140
  • 500GB - MSRP $210
  • 620GB - MSRP $270

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