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             MIT Handyboard System Upgrade Parts 
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            HB-NONVOLATILE-SRAM ........US$19.95 
              
                  
                Upgrade part for Handyboard SRAM. This is a non-volatile RAM which can retain your program on Handyboard even the power is lost. It is pin-to-pin compatible to the Handyboard SRAM. Here is the datasheet.  
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            Q&A  | 
           
          
            Q1: DB9 or DB25 or Mac DIN5 serial downloading cable Selection?  
              This is to connect your Serial/Charger board to PC serial port (either DB9 or DB25 or Mac DIN5) . Please specify the connection type when ordering. FOR EXAMPLE: Your mouse may connect to DB9 of your PC serial port.   
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            Q2: I have a notebook without any serial port. How can I connect Handyboard? 
              We have a USB version Handyboard which can interface with your USB port.                   | 
           
          
            Q3: DIN5 is no longer available in most Mac machine. Can I still use it to program Handyboard? 
              We have a USB version Handyboard as long as your Mac machine has USB port.   | 
           
                     
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