Alternatively referred to as ATA-2, Fast ATA, Fast IDE, or parallel ATA, EIDE (enhanced IDE) is an improvement over the IDE (integrated drive electronics) storage device interface standard. It was developed by Western Digital and an interface used on IBM compatible computers. EIDE supports data rates from 4 and 16.6 MBps. Below, is a picture of the IDE connector on the back of a hard drive, a picture of what an IDE cable looks like, and the IDE channels it connects to on the motherboard.
EIDE supports drives up to 8.4 GB. EIDE also supports faster PIO modes 3 and 4 as well as multiword DMA modes 1 and 2. ATA-2 also adds additional support for LBA drives that allow support for drives larger than 528 MB.
What has replaced the EIDE cables?
Today, all computers are use SATA and no longer use EIDE.