This product is a lot of 8 Supermicro 3.5" server hard drive trays, designed for use with 3.5 inch drives. The trays are compatible with both SATA and SAS interfaces, making them versatile for various storage solutions. Each tray is in a sleek black color, adding a professional look to any server setup. These Supermicro hard drive trays offer a reliable and efficient way to organize and mount your server drives for optimal performance and accessibility.