The Black Box DB9 Male Dust Cover - 25 - Pack is an essential accessory for anyone looking to maintain the integrity of their DB9 connectors. These dust covers are specifically designed to prevent dust from collecting within the pins of your cable connectors, ensuring optimal performance and longevity. Ideal for new installations or for protecting unused cables in storage, these covers are guaranteed for life, providing peace of mind for your connectivity needs. Each pack contains 25 dust covers, making it a convenient choice for both personal and professional use.