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.

Where to Buy

loading.. Loading latest prices from ProductWiki...

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

User Reviews (0)

Add Pros & Cons

Comments (1)

What's on your mind? See more ProductWiki Talk
Wilfredo Gonzalez
Wilfredo Gonzalez: #a_data_classic_ch91 I bought my CH91 320 GB back in 2009 and up to this date (July 2015) is working perfectly. It has withstand a couple of falls, power blackouts, etc., and still there has been no crashes, no problems ever. I'm very fond of it. I love the little, great unsurpassed machine. Thats where I carry all my rendered and edited videos everywhere I go.. Jun 13, 15
post a reply like this

You may also like...