08-05-2012 01:41 PM
The DCH series is slightly newer, and would operate slightly faster. DCH was the next model lineup after DCT. Just like the DCX followed the DCH. They both have the same 160GB drive, which is the last 2 digits of the model number.
The DCH series III had HDMI where the earlier ones had DVI.
If you had a choice, the DCH would be slightly better.
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