The minimum spec for AxTraxNG Server and Client as listed in the manual are:
CPU: 2.4GHZ (i5) or higher
OS: win 10 or higher, up to win server 2019 is supported.
RAM: 8GB (min 12GB is recommended)
Network: network adapter 100MB
Hard Drive: 500 GB hard disk with a minimum of 8GB free space
This is minimum requirements and depend on system size needed to be increased.
Those requirements does not include SQL server, for example SQL 2019 minimum requirements:
Express Editions: 512MB
All other editions: 1 GB
Express Editions: 1 GB
All other editions: At least 4 GB and should be increased as database size increases to ensure optimal performance.
Minimum: x64 Processor: 1.4 GHz
Recommended: 2.0 GHz or faster
x64 Processor: AMD Opteron, AMD Athlon 64, Intel Xeon with Intel EM64T support, Intel Pentium IV with EM64T support