Features: The PCI-position ventilation baffle of the computer chassis has the functions of dust prevention, ventilation and heat dissipation. With holes and without holes are optional, among which the hollow designing with holes help to increase the airflows of the computer case and quickly dissipate heat, while the baffle without holes help to keep the computer case clean, blocking some dust, and keep the computer hardware in good working conditions. Metal material, electroplating and painting, effectively preventing rust, full of durability. Humanized designing, simple and convenient installation. Suitable for computer chassis PCI card slot, such as most MATX and ATX computer chassis. Specifications: Material: Metal Type: with Hole, Without Hole(optional) Scope of Application: desktop-computer PCI slot standard backplane Note: Please allow 0-1cm error due to manual measurement. Please allow for slight color difference due to different monitor resolution. Package includes: 5Pcs PCI Slot Covers