RackStation RS822+ 16TB Features: High Performance Over 2,103/1,074 MB/s sequential read/write throughput supports stable data transfers Easy Expansion Scale up to 8 drives with one Synology RX418 Expansion Unit Flexible Connectivity Four 1GbE ports support network failover and load balancing, with optional 10/25GbE expansions available SSD Cache Support Boost random IOPS performance with optional SSD cache Specifications: CPU AMD Ryzen™ V1500B quad-core (8-thread) 2.2 GHz Hardware encryption engine AES-NI Memory 2 GB DDR4 ECC SODIMM (expandable up to 32 GB) Compatible drive types 4 x 3.5" or 2.5" SATA HDD/SSD Hot swappable drives Yes External ports 2 x USB 3.2 Gen 1 ports 1 x Expansion port (eSATA) Form factor Rackmount 1U Size (HxWxD) 44 x 430.5 x 457.6 mm/44 x 480 x 492.6 mm (with server handles) Weight 6.4 kg LAN ports 4 x 1GbE RJ-45 Wake on LAN/WAN Yes PCIe expansion 1 x Gen3 4-lane x8 slot High-performance network interface card support M.2 NVMe/SATA SSD adapter card support Scheduled power on/off Yes System fans 3 x (40 x 40 x 20 mm) AC input power voltage 100 V to 240 V AC Power frequency 50/60 Hz, single phase Operating environment Temperature: 0°C to 35°C (32°F to 95°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, and 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 Virtualization VMware vSphere®, Microsoft Hyper-V®, Citrix®, OpenStack, and Kubernetes 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® 13 and later, and Safari (iOS 13.0 and later) on iPad, Chrome (Android™ 11.0 and later) on tablets 3.5” SATA HDD HAT3300 4TB Plus Series HAT3300-4T Features: Durability Designed for 24/7 operation Updates Seamless firmware updates through DSM One-stop support Fast troubleshooting from Synology Specifications: General Capacity 4 TB Form Factor 3.5" Interface SATA 6 Gb/s Performance Rotational Speed 5,400 rpm Maximum Sustained Data Transfer Speed (Typ.) 202 MB/s Reliability Warranty 3 Years