Cool USB Type-Cstorage solutionThis external storage housing offers space for up to four 2.5" or 3.5" drives. A robust aluminum body provides efficient heat dissipation, and the temperature-controlled rear fan keeps drives cool during long hours of operation.The mixture makesIn addition to the improved design, the IB-3740-C31 offers the advantage of 2.5" and 3.5" drive support. This makes the device an ideal candidate for users looking for the maximum capacity of directly connected storage space, as traditional hard disks can still hold much more data than the largest SSD drives currently available. However, if you absolutely need the maximum performance during data transfer, you can still use 2.5" SSDs without any problem thanks to the carrier supplied.For the environmentDuring periods of non-use, the device automatically switches to standby via Smart Sync technology, as well as when the data transfer cable is removed! The LED display indicates whether and in which slots hard disks