DESC: Small and medium businesses face an ever increasing need for storage consolidation, document sharing and data backup. D-Link's ShareCenter Pro 1550 S-Series 1U 4-Bay Network Storage Device addresses these requirements, and provides a multitude of advanced options for managing and securing important files. Setup and configuration of the ShareCenter Pro can be complete in a matter of minutes with our simple and easy to use One Click Setup and intuitive Web Based Interfaces.This device is a unified solution that provides iSCSI and NAS functionalities including MPIO and LUN-masking. It boasts strong iSCSI write performance greater than many competing products. It also provides versatile RAID support. It features four Serial ATA (SATA) disk drive bays and supports volumes in RAID level 0, 1, 5, 6, 10, JBOD and Standard mode configurations. Additionally, S.M.A.R.T. disk diagnostics help to ensure data integrity through monitoring of the hard drives.