This is the fastest , lowest cost way to hook a HDD to a PDA . Linux will run a Forth in this box . You will need to increase the battery size as all pocket devices today eat batts in minutes . with external battery pack you could run for 2 hours .
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Dont believe wiki , the HDD is easy to hook , you only need a USB hub to the EXT connector on bottom . But no one makes a hub with that connector , so go create it or buy $50 BreakOutBox plus cable