Hardware embedded Raid controller ensure data integrity with redundant back up capability, Support Single Mode, JBOD Mode, Raid 0 Mode, and Raid 1 Mode Support all brand of 3.5" SATA I / II / III hard drive up to 8TB per drive, and support SATA III 6.0Gbps speed, Support UASP for faster transfer rate USB 3.0 Tranasfer rate up to 5.0 Gbps for, eSATA transfer rate up to 6.0 Gbps, Compatible with PC & Mac LED Light indicator for system status monitoring Support up to 2 x 8TB Hard Drive, Safety Specification: CE / FCC.