The PFM976-631-PT is an unshielded (UTP) CAT6 RJ45 pass-through modular plug manufactured by Dahua Technology. Also commonly known as an "EZ-type" connector, it features a through-hole design that allows individual wire conductors to feed completely through the front of the plug before crimping. This makes it significantly easier to verify the correct T568A or T568B wiring order and ensures a tighter, more reliable connection.