The product is a vintage Intel KB581603/01 PCI dial-up 56k modem card that is being sold untested and as-is. It is compatible with PCI ports and is specifically designed for use in router modules, cards, and adapters for enterprise networking systems. The card is from the brand Intel, known for its high-quality computer hardware. It offers the capability of connecting to dial-up internet services at speeds of up to 56k, making it suitable for older systems or as a collector's item.