Thecus N5500, Network Attached Storage with 5 x SATA for internal, 1 x eSATA for external, 1 x eSATA for ext. 1GB DDR2 SDRAM, RJ-45x2 : 10/100/1000 BASE-TX Auto MDI/MDI-X WOL supported, 200W Power Supply support 2TB and above HDDx5, SATA I/II x5 via backplane, RAID 0, 1, 5,6,10,JBOD, USB 2.0 port x5(Front x1, Back x4) (A Type) USB 2.0 Target mode (B Type)