The HornetTek HT-RAB237 is designed as a powerful case with USB3.0 interface. Supporting two SATA HDDs at once meets the need for larger storage capacity demand. RAB237 supports Normal/JBOD/Raid0/Raid1. Users can have a double capacity enclosure and operate file storage integration under high security mode. RAB237 is utilized with efficient super speed data storage. It can operate with USB power only as if the USB supplies enough power to drive the device and two HDD/SSDs. If the USB power is not enough to drive the device and HDD/SSDs, uses DC 5V input as an alternative. Easy to install, suitable size from well design, and great cooling efficiency, RAB237 brings you a unique experience of dual bay enclosure.