The product is a set of 4 vintage Hyundai 4MB SIMM RAM modules with silver pins, for a total capacity of 16MB. These modules have a 30 pin design and are sold as a single unit. With a capacity of 4MB per module, this RAM is compatible with computers that require SIMM modules for memory expansion. The Hyundai brand ensures reliability and quality in this product, making it a valuable addition to any computer system needing increased memory capacity.