Enhanced Small Disk Interface

storage, hardware (ESDI) An obsolete hard disk

controller standard, first introduced by Maxtor in 1983,

and intended to be the successor to the original

ST-506/ST-412. ESDI was faster and more reliable, but

still could not compete with IDE and SCSI.

EDSI used two cables: a 20-pin data cable to each drive and a

single 34-pin control cable daisy chain with the controller

at one end and a terminator at the other. In PCs, it

supported up to two drives at 1-2MB/s with drives up to 2GB.

PC Guide.

(2003-08-01)