Features: Improve your computer's cooling efficiency with our alloy steel PCI Slot Cover Brackets, featuring a slanted hole design that maximizes airflow and prevents overheating by increasing the ventilation surface area. Made of durable alloy steel with an electroplated finish, these full-profile expansion slot covers are rust-resistant and built to last, ensuring long-term protection and performance for your computer chassis. Suitable for computer DIY enthusiasts, IT professionals, and gamers who frequently upgrade or customize their systems and seek both functionality and aesthetic appeal in their hardware components. Perfect for filling unused PCI slots during PC assembly, replacing old brackets to maintain internal cleanliness, and optimizing chassis airflow for improved heat dissipation and system stability. Each set includes five vented PCI slot covers for easy installation and removal, making it convenient to improve the appearance and thermal management of your computer. Specifications: Component: Metal Size: About 12x1.9cm/4.72x0.75inch Optional Color: Black, White; Package Includes: 5pcs Steel PCI Slot Protector (Screws Not Included) Note: Please allow 1mm error due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.