[Compatible 3.5&2.5 hard drive]---Max compatible dimensions (outside): 16.2x11.73x3.7 CM; 3.5 inch Hard drive protection case with bracket that can place 4 drive of 2.5 inch at the same time or 3.5 external hard drive; Portable hard drive case can easily fit into any backpack or briefcase | [Unique Design]---High-hardness PP&ABS material protect the 3.5 hard drive case from everyday knocks bumps;Book opening design with close fitting to ensure your hard disk is free from moisture, anti-static and dust-proof; And did good job for fully protect your hard drive data | [Functional Storage]---The hard drive storage box with label stickers to convenient for you perform and more scientific classification and archive management of the vast data which subtly reduce the space occupation and clutter of the desktop; Variety of colors choose for you-5 Pcs SIZE:16.2*11.7*3.69cm | [Comprehensive Protection]--The built-in EVA reinforced shock-resistant cushions wrapped on hard drive case both sides and four 2.5 hard disks are separated by brackets to maintain stability and eliminate the possibility of friction damage due to interaction with parts and make your data storage more secure | [3.5 Hard Drive Case]---The hard drive storage box perfect fit for 3.5inch HDD;Outside card slot is easy to stack up and down which can quickly secure a hard drive to keep the neatly of the desktop