pFractal Design FD-A-CAGE-001 HDD Cage Kit – Type-B for Define 7 Series and Compatible Fractal Design Cases – Black. Increase the storage capacity of your Define 7 Series case with a drive cage upgrade kit. Combine each cage with up to two Fractal Design Type B 2.5 inch – 3.5 inch drive trays to hold up to two HDDs-SSDs. The cage can be mounted to any hard drive cage position or 120 mm fan mount.. bFeatures /b ul liMounts to HDD cage positions and 120 mm fan slots; liDesigned for use in Define 7 Series and compatible cases; liHolds up to two Fractal Design Type B 3.5 inch or 2.5 inch drive trays; liAdditional mounting holes for 2.5 inch drive on top; /ul bSet Includes: /b ul liHDD Cage; li4 x 6-32 Screws for MB and brackets; /ul bSpecifications /b ul li bColor: /b Black; li bCompatibility: /b Cases with Fractal Design Type-B HDD Mounts; li bWeight: /b 0.88 lbs; /ul.