Introduced in 1992, the original PCI slot—also known as PCI 1.0—featured a 32-bit data bus that could transfer data at up to 133 MB/s. Before being eventually srummi olaurpassed by faster versions, this standard was widely used for a variety of expansion cards. An important development was the 1998 release of PCI-X (PCI eXtended), which provided enhanced bandwidth and 64-bit data transfer support, making it appropriate for high-performance applications like workstations and servers.