The 3AL82020AAAA Nokia 4x25 DML 10km Single Rate 100GB Base-LR4 is a high-quality switch module designed for enterprise networking and servers. Made by Nokia, a trusted brand known for its reliable networking products, this switch module is manufactured in Malaysia and is specifically designed for high-speed data transmission. With a capacity of 100GB and a distance of 10km, this product is ideal for businesses that require fast and efficient network connectivity for their operations.