The Genuine IBM FRU 92F3337 4MB Desktop RAM is a high-quality memory module designed for desktop computers. With a total capacity of 4MB and a form factor of SIMM, this RAM module is ideal for older systems that require faster data transfer rates. The 72-pin design ensures compatibility with a wide range of systems, while the FPM RAM technology provides reliable performance. This genuine IBM product offers a reliable and efficient solution for upgrading your computer's memory capacity.