The Original IBM FRU 92F0105 4MB 70NS 72 PIN SIMM is a vintage computer memory module specifically designed for IBM PS2 systems. With a capacity of 4MB per module, this FPM RAM module is a crucial component for upgrading the memory capacity of your computer. The SIMM form factor and 72 pins make it compatible with specific IBM PS2 models, ensuring reliable performance and functionality. Upgrade your computer's memory capacity with this genuine IBM memory module.