RAID Tower Mini The RAID Tower Mini is built basing on the Mini Storage Tower platform features increased portability by reducing the size and weight to half of the RAID Tower IV. Depending on the model, up to four 3.5" SATA or eight 2.5" SATA hard drives can be installed into the RAID Tower Mini. The drives can be configured as a RAID set and be connected to the computer via USB 3.0, USB 2.0 or the high speed eSATA connection. RAID Tower Mini comes with a low noise cooling fan and stylish design with swing open well ventilated front panel for easy drive access. Each model comes with everything needed for connecting to the computer. All is needed is to add your own hard drives and configure the RAID via either a simple on board rotary switch or software utility depending on the RAID Tower model.