• Standards: IEEE 802.3, IEEE 802.3ab, IEEE 802.3u, IEEE 802.3ad, TCP/IP, CIFS/SMB, AFP, NFS, UPnP AV, LLTD, Bonjour, DDNS, NTP, FTP over SSL/TLS, FXP, HTTP/HTTPS, WebDAV, USB 2.0, DHCP Client, PnP-X • Device Interfaces: Four SATA I/II 3.5-inch hard drive bays, supports hard drive capacities up to 3 TB, Two 10/100/1000 Gigabit Ethernet Ports, USB 2.0 PortLEDs, LAN (on LAN ports), Ethernet (on Ethernet ports) • Display: 128 x 32 OLED Display Screen • Disk Managment: Multiple Hard Drive Configurations: RAID 0/1/5/10/5 + Hot Spare, JBoD, Standard; RAID migration from Non-RAID to RAID 1/5, RAID 1 to RAID 5; Hard Drive Formats; Scandisk ; Internal: EXT4; External: FAT16/32, NTFS; S.M.A.R.T.; AES based volume encryption; Disk Roaming; RAID Roaming • Account Managment: Windows Active Directory service support for Windows Server 2003/2008; User account management; Group account management; User/Group Quota management; Network Share management; ISO Mount management; Batch User Creation • Download management: HTTP/FTP schedule download; Peer to Peer (P2P), aMule; • Backup Management: Schedule Backup from PC to NAS; Schedule Local Backups; Schedule Remote Backups (Rsync, Remote Snapshot) ; Apple Time Machine support; USB Backups; Cloud Storage Backup (Amazon S3) • Device Managment: Web interface with support for Internet Explorer 7, Firefox 3, Safari 4, Chrome 3, and Opera 10 or above Easy Search Utility; Email Notifications; SMS Notifications; System/FTP log; Yahoo! Widget; SNMPv2; Resource Monitor; Add-ons Packages • Power Management: Power Saving mode; Auto Power Recovery; Schedule Power on/off; Smart Fan control; D-Link Green Ethernet; Auto-offload system when UPS is low on battery; Network UPS • Remote File Sharing: Web File Server;FTP Server;WebDAV;AjaXplorer;Mobile devices - mydlink Cloud app • File Sharing: Max. user accounts: 512 (non-ADS)/800 (ADS); Max. groups: 64 (non-ADS)/200 (ADS)); Max. shared folders: 128 (without P2P); Max. concurrent connections: 64 (Samba)/10 (FTP)