The Intel(R) E7000 Series PCI to AGP Controller - 2552 is a device driver related to the PCI-to-AGP bridge controller used in systems with Intel E7000 series chipsets. In basic terms, this controller allows your system to interface with older AGP (Accelerated Graphics Port) cards via the PCI (Peripheral Component Interconnect) bus.

This driver is typically found in older systems where an AGP graphics card is being used, as AGP was a common interface for graphics cards before PCI Express (PCIe) became the standard. The PCI to AGP controller driver is essential for proper communication between the motherboard's chipset and the graphics card installed in the AGP slot.