Form Factor: Tower Port RJ-45: 2 x 10/100/1000M Port USB: 2 x USB2.0 HDD Interface: 4 x SATA Supported Protocols: Networking: TCP/IP File Sharing: CIFS/SMB, AFP, HTTP/HTTPS, FTP/FTPS, NFS Directory Integration: LDAP Management: HTTP Time Synchronization: NTP Operating System: Setup Utility OS Support: Windows Operating Systems Client OS Support: Windows Vista, Windows XP, Windows 2000, Windows 98 SE, Mac OS 10.3.9 RAID: RAID 0, 1, 5 , 10 and JBOD Power: Internal, AC 100-240V 50/60 Hz