DiskStation DS223 4TB Features: Centralized Data Storage Consolidate up to 36 TB of data1 with 100% data ownership and multi-platform access Easy Sharing & Syncing Share files and media in a breeze, and keep clients and collaborators on the same page Simple Data Protection Back up your media library or business document repository to a variety of destinations Intelligent Surveillance Protect what matters by keeping an eye on your home with flexible monitoring tools Specifications: CPU Realtek RTD1619B Memory 2 GB DDR4 Compatible drive types 2 x 3.5" or 2.5" SATA SSD/HDD (drives not included) Hot swappable drives Yes External ports 3 x USB 3.2 Gen 1 ports Form factor Desktop Size (HxWxD) 165 x 108 x 232.7 mm Weight 1.28 kg LAN ports 1 x 1GbE RJ-45 Wake on LAN/WAN Yes Scheduled power on/off Yes System fans 1 x (92 x 92 x 25 mm) AC input power voltage 100 V to 240 V AC Power frequency 50/60 Hz, single phase Operating environment Temperature: 0°C to 40°C (32°F to 104°F) Relative humidity: 8% to 80% RH Storage environment Temperature: -20°C to 60°C (-5°F to 140°F) Relative humidity: 5% to 95% RH Maximum operating altitude 5,000 m (16,400 ft) Networking protocols SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, and VPN (PPTP, OpenVPN™, L2TP) File systems Internal: Btrfs, ext4 External: Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT Supported RAID types Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1 Storage management Max. single volume size: 108 TB Max. number of system snapshots: 4,0965 Max. number of internal volumes: 64 File sharing capabilities Max. number of local user accounts: 1,024 Max. number of local groups: 256 Max. number of shared folders: 256 Max. number of concurrent SMB/NFS/AFP/FTP connections: 200 Privileges Windows® Access Control List (ACL) and application privileges Directory services Connects with Windows® AD/LDAP servers enabling domain users to login via SMB/NFS/AFP/FTP/File Station using their existing credentials Security Firewall, shared folder encryption, SMB encryption, FTP over SSL/TLS, SFTP, rsync over SSH, login auto block, Let's Encrypt support, and HTTPS (configurable cipher suite) Supported browsers Google Chrome®, Firefox®, Microsoft Edge®, Safari® 14 and later, and Safari (iOS 14.0 and later) on iPad, Chrome (Android™ 11.0 and later) on tablets Interface languages English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svensk, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文 IronWolf 2TB Air ST2000VN003 IronWolf is designed for consumer and commercial NAS. Delivering Tough, Ready and Scalable 24x7 performance in multibay, networked environments. Specifications: Capacity 2TB Interface SATA 6Gb/s Dimensions: H x W x D 20.20mm/0.795in x 101.85mm/4.01in x 146.99mm/5.787in Weight 415g Cache 256MB Spindle Speed 5400RPM Max. Sustained Transfer Rate OD 180MB/s