Benz MB STAR diagnosis IBMT30, Dell D630 and external HDD

All Mercedes Benz MB STAR Diagnostic system (MB STAR C3, MB STAR C4, MB SD C4 and Super MB STAR C3 multiplexer) is compatible with both internal (IBM T30 and Dell D630) and external software HDD. What are the difference among the there formats HDD?

Internal HDD:

1．IBM T30 format software HDD:

Computer requirement: IBM T30 laptop running Windows XP

Current version: 2014.05

T30 HDD is rather old software hdd for MB STAR diagnostic tools.

2. Dell D630 format software HDD:

Computer requirement: Dell D630 laptop running Win XP

Current version: V2015.05

If you get the MB SD Connect Compact 4 plus Dell D630 laptop, software is pre-installed before delivery. Directly run and use the software.

3. MB STAR Diagnosis External HDD:

Any laptop/computer with COM-ports, MB STAR Diagnostic software can be loaded on Virtual machine.

How to install the VMware for MB star External HDD

https://www.youtube.com/watch?v=T7aO7JJ8Ksc

In short:

Internal HDD (T30 and Dell D630 software HDD) runs faster than external HDD.

External HDD runs faster on Virtual machine than on default operating system. 

This is from obd tool website technical support: Benz MB STAR diagnosis IBMT30, Dell D630 and external HDD