Supports up to five 12 Gbit/s 3.5" SAS / SATA drives with tray-free & screw-less design / Drive tray features anti-theft lock design to keep confidential information secured / Supports hot-swap function / Supports up to SSI-CEB motherboard / Supports 7 standard size PCI / PCIe expansion slots / Three 5.25" drive bays for a more flexible installation of 5.25" devices / Front I/O with 5Gbps USB 3.1 Gen1 ports, backward compatible with USB 2.0 / 1.1 / Pre-drilled mounting holes for easy sliding rails installation.