2.9 — Phdgd Skylake

Given the partial information, I'm going to assume you're referring to an Intel processor, specifically one from the Skylake generation. Skylake is a codename used by Intel for a generation of processors that were released in 2015. They are part of the 6th generation of Intel Core processors.

Who Should Use PHDGD Skylake 2.9?

1. "Code 43" in Device Manager