Features: brand new and high quality The 2.5-inch hard disk holder installed in the floppy drive position of the chassis is made of all-aluminum metal with a thickness of 2mm. The surface is anodic oxidation treatment, corrosion resistance is not easy to damage, the structure is light and strong. The large heat dissipation mesh panel design helps the hard drive to dissipate heat and install the hard drive firmly. AC325-1S is suitable for all PC cases on the market. Any 2.5-inch SATA/IDE/SSD hard disk can be installed. Our disk space upgrade not only effectively utilizes the idle space, but also saves a lot of costs. Support a 2.5-inch hard drive with shock-proof washer design; for SATA and IDE interfaces Hollow panel design, excellent heat dissipation, protect your hard drive well Specifications: Model: AC325-1S Material: Aluminum Color: Black Used for: 2.5in HDD Rack Size: mixed Note: Only include HDD shelf DIY tools, without cooling fan and hard drive. Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1 x AC325-1S Adapter Rack 8 x Mounting Screws (4 fixed hard drives, 4 fixed brackets) 4 x Hard Disk Shockproof Washer