EIDE enhanced integrated device (or drive) electronics A second take on the PC platform's IDE drive interface that increases the previous maximum disk size from 504MB to more than 8GB, speeds up the data transfer rate to more than twice what IDE was capable of, and doubles the number of drives a PC can contain, bringing the number up to four. On the PC platform, EIDE gives SCSI-2 a run for its money, and while most people agree that SCSI-2 is technically superior, EIDE is cheaper to implement, which gained it widespread acceptance. See also: DRAM, EDO RAM, IDE, RAM