Regex to validate SOFT-ID

Hi.

I’m writing an aplication and some work of this tool is validate the new format of SOFT-ID . So i write the regex to do it, the expression is:

^[A-Z0-9]{4}-[A-Z0-9]{4}$

This matches with the new format (8 digit A1B2-C3D4 format) with numbers or words on

4 digit - 4 digit

I share it if you need it. If you have some recommendation it will be welcome.

M.