4MB 30-pin 80ns 9-chip Parity SIMM
4MB 30-pin 80ns 9-chip Parity SIMM *4MBx9-80 *Memory Dealers is a world leading manufacturer of SIMM memory. Install these in pairs or 4 at a time depending on your application. *Use by some 486 systems and some proprietary systems. Usually install these four at a time. Please consult your manual. This simm is guaranteed for functionality, not compatibility.