Final answer:
Socket R (LGA 2011) is the type of socket with over 2,000 copper pins, designed to replace Socket B, and is used for high-end CPUs.
Step-by-step explanation:
The type of socket that uses over 2,000 copper pins and was designed to replace Socket B is called Socket R, also known as LGA 2011. This socket was introduced by Intel and is used for high-end desktop and server CPUs. It provides numerous improvements over its predecessor, including a larger pin count which allows for more power pins and greater data connectivity.