2014 -12.0.2000.8- Key -... _top_ — Microsoft Sql Server

The version number 12.0.2000.8 identifies the initial Release to Manufacturing (RTM) version of Microsoft SQL Server 2014. Released in 2014, this version represents the base software before any Service Packs (SPs) or Cumulative Updates (CUs) were applied. Understanding Version 12.0.2000.8

To activate SQL Server 2014 using the 12.0.2000.8 key, follow these steps: Microsoft SQL Server 2014 -12.0.2000.8- Key -...

Audit

Produce a short checklist tailored to an OLTP server running SQL Server 2014,
Generate a tempdb sizing template based on your server cores and expected workload,
Or walk through enabling buffer pool extension with monitoring queries to validate impact.

The mention of a "Key" in your reference implies that you are in the process of installing or have installed SQL Server 2014 and are looking to activate it. Activation is a critical step that verifies the legitimacy of your software and allows you to receive updates and support. The version number 12