You are able to partially upgrade Lenovo laptops after the purchasing process.
Individual MacBook Configurations (CTO)
Apple Macbooks can be customized.
There is No Way to Upgrade your Macbook later, you have to choose the Configuration that you Want at the Purchasing Process!!!
We can also consult you relating specific hardware needs like workstations or servers. In case you need high performance computing power, we can help you with defining and providing tailor-made solutions.