Mb Star c3 diagnostic tool and Mb Star c4 diagnostic tool differences and relations

Recently i am going to buy a Dell D630 laptop becauses of a friend of mine telling me it fits SD Connect, so i want to know what is the main different between MB Star C3 and SD Connect device? Which one is the Developer version support and can I update softwares online.Later I learned that from a friend and from the difference between Mb star c3 software and Mb star c4 software.
C3:http://www.cnautotool.com/category-169-b0-MB+Star+C3.html
C4:http://www.cnautotool.com/category-172-b0-MB+Star+C4.html
The MB Star C3 is the generater3, the SDconnect is generater4, they are same functions with the same software, and version also same. Their developer verions are the latest software verions, MBStar C3 and SDconenct both come with 01/2012 verion software. This version of MB STAR C3 can fit all computers, it is not only limited on Dell D630 laptop or IBM T30, it has one hard disk contain DAS and WIS system. Your friend is right, the Dell D630 laptop is the best for MB SD Compact4. but cannt update software online, you have to send your HDD back someone who sell you or buy a new HDD.
you can view the folling content i copy form www.cnautotool.com
The difference between XP MB star C3 diagnostic tool and MB Star SD Connect Compact4:
1. MB Star SD Connect Compact4 support Wireless diagnosis;
2. MB Star SD Connect Compact4 not only support K L diagnosis and 3 road CAN BUS diagnosis, but also support UDS diagnostic protocol, because of old XP-STAR lack of the UDS chip, it will be replaced;
3. MB Star SD Connect Compact4 Multiplexer except can wireless diagnosis, adopt USB connector, it can support more computer model;
4. MB Star SD Connect Compact4 connector adopt Military quick swap technology, it can support 10,000 times pull plug, more stable;
5. all of the key accossery adopt original new packing chip, and 24hours test, guarantee the Quality of the products;
6. support language：English, German,French,Italian, Spain, Portugal, Finland, Denmark, Sweden.
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