Features: Transform your 3.5inch HDDs or SSD into 5.25inch drive bay with metal mounting bracket adapter, maximizing storage space within your computer case effortlessly. from alloy materials, this lightweight bracket ensures stability without adding significant weight, featuring ventilation holes for heat dissipation. for enthusiasts, gamers, and professional designers who require extensive data storage within their existing systems. Perfect for use in any 5.25inch internal drive bay, this bracket for most chassis with optical drive, providing economical storage expansion option. Enhances your computer storage flexibility by utilizing unused optical drive bays, making it a cost effective alternative to purchasing new hard drive enclosures. Specifications: Materials: Metal Size: approx. 92x22.4x25.1mm/3.62x0.88x0.99inch Package Includes: 2Pack HDDs Metal Mounting Bracket note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item. Thanks!