Synology DS223j DiskStation 2-bay NAS server, 2.5"/3.5" HDD/SSD, 1GB DDR4, 1×G-LAN, USB3.2×2, Wake on LAN/WAN

• Hardware:• CPU: Realtek RTD1619B• Memory: 1 GB DDR4• Compatible drive types: 2 x 3.5" or 2.5" SATA HDD/SSD (drives not included.)• Hot swappable drives: No• External ports: 2 x USB 3.2 Gen 1 ports• Form factor: Desktop• Size (HxWxD): 165 x 100 x 225.5 mm• Weight: 0.88 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• General DSM Specifications• Networking protocols: SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, and VPN (PPTP, OpenVPN™, L2TP)• File systems• Internal: Btrfs2, ext4• External: Btrfs2, 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: 4,0967• 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: 100• 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 (customizable 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