The TowerRAID TR5M-B is a 5-bay storage enclosures for high capacity storage needs. With built-in ventilating protective screen front panel, the units utilizes cable-less backplane design to support up to five hard drives. Hard drives are installed on easy access hard drive trays for simple insertion and removal. Hard drive cooling is provided by a large 4.7" cooling fan located on the back of the unit. The TR5M-B is a compact RAID tower that uses only one cable to access five SATA drives utilizing the latest SATA II port multiplier technology. Using the bundled 2-port eSATA PCIe adapter, the user could easily access five hard drives via JBOD mode, or RAID 0, 1, 1+0 and 5 with spare.