BP-SAC3141B is designed to house up to Four 3.5กจ SATA or SAS Hard Drives. Its rear-mounted 80mm cooling fan keeps the unit function at its optimal capacity. BP-SAC3141B is an ideal solution for internal server RAID and JBOD applications. It supports SATA and SAS drives with data transfer rates of up to 3G and 6G respectively. Its unique design strategically utilizes only two 5.25กจ drive bay slots to house four 3.5กจ drives for maximum space-saving. Multiple LED indicators show the power, fan status and individual drive activity. This high-end data storage unit works with all servers or workstations to increase hardware efficiency. Parallel connection to other SAS devices is not applicable