The Intel 82371EB PCI ISA IDE Xcelerator (PIIX4E) was a chipset designed for the Intel 440BX and 440ZX motherboards. Released in the late 1990s, it integrated several features to enhance system performance. It supported PCI-to-ISA bridge functionality, improved IDE controller capabilities, and advanced power management. The PIIX4E provided faster data transfers, enhanced IDE (Integrated Drive Electronics) support for hard drives, and was commonly used in Pentium III-based systems, ensuring better compatibility with peripheral devices and faster I/O operations.