Q: Can I upgrade the GSK 928TEII to the new one GSK 928TEa? How much?

A: Sorry, GSK928TEII could not be upgraded to GSK928TEa, they are using different platform.

If you want to use GSK928TEa, you should buy a new one.

GSK928TEa Specification:

http://www.cncmakers.com/cnc/controllers/CNC_Controllers_for_Lathes/GSK928TEa.html