belkinrtl87b.dll is a BelkinRTL87B
belonging to BelkinRTL85 Dynamic Link Library
from Realtek Semiconductor Corp.
Non-system processes like belkinrtl87b.dll originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues.