Total of 8MB (2x 4MB modules). The product is a MT8D132M-7 Micron 4MB FastPage non-Parity 60ns 5v 72-Pin Memory Module. Manufactured by MICRON SEMICONDUCTOR INC, this SIMM memory module has a total capacity of 4 MB and is designed for compatibility with the same brand. With a fixed price format and a model number of MT8D132M-7 X, this memory module is ideal for computers and networking devices requiring reliable and high-performance memory solutions.