DiskStation DS423+ Features: Centralized Data Storage Store up to 72 TB of data in one place, maintain 100% data ownership, and enjoy multi-platform access Dependable Performance Up to 226/224 MB/s sequential read/write throughput supports stable data transfers Built-in Data Management Tools Leverage built-in file and photo management, data protection, and surveillance solutions Effortless Data Sharing and Syncing Access, share, and sync your data and media easily across different operating systems and devices Specifications: CPU Intel® Celeron® J4125 Memory 2 GB DDR4 SODIMM (expandable up to 6 GB) Compatible drive types 4 x 3.5" or 2.5" SATA SSD/HDD Hot swappable drives Yes External ports 2 x USB 3.2 Gen 1 ports Form factor Desktop Size (HxWxD) 166 x 199 x 223 mm Weight 2.18 kg LAN ports 2 x 1GbE RJ-45 Wake on LAN/WAN Yes Scheduled power on/off Yes System fans 2 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, RAID 5, RAID 6, RAID 10 Storage management Max. single volume size: 108 TB Max. number of system snapshots: 65,536 Max. number of internal volumes: 64 SSD cache Read/write cache support M.2 NVMe and 2.5" SATA SSD support File sharing capabilities Max. number of local user accounts: 2,048 Max. number of local groups: 256 Max. number of shared folders: 512 Max. number of concurrent SMB/NFS/AFP/FTP connections: 500 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® 13 and later, and Safari (iOS 13.0 and later) on iPad, Chrome (Android™ 11.0 and later) on tablet 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