Synology RackStation RS4021XS+ 3U 16-Bay NAS Rackmount Enclosure

Synology RackStation RS4021XS+ 3U 16-Bay NAS Rackmount Enclosure The Synology RackStation RS4021xs+ is a high-performance 16-bay 3U rackmount NAS designed for enterprise storage, backup, virtualisation and data protection. Powered by an Intel Xeon D-1541 8-core processor, 16GB DDR4 ECC memory and built-in 10GbE connectivity, it delivers reliable, scalable storage for demanding multi-user business environments. Key Features 16-bay 3U rackmount NAS for enterprise storage deployments. Intel Xeon D-1541 8-core processor running at 2.1GHz. 16GB DDR4 ECC memory, expandable up to 64GB. 2 × 10GbE RJ45 and 4 × 1GbE RJ45 network ports. 2 × PCIe 3.0 x8 expansion slots for NICs or SSD cache adapters. Supports 3.5-inch and 2.5-inch SATA HDDs/SSDs. Built-in redundant power supplies for improved availability. Runs Synology DiskStation Manager (DSM). Enterprise Storage Performance The RS4021xs+ is built for high-throughput business environments, offering strong performance for file sharing, backup, virtualisation storage, collaboration platforms and surveillance deployments. High-Speed Networking and Expansion Integrated dual 10GbE ports and four Gigabit Ethernet ports provide flexible network connectivity, while PCIe expansion supports additional networking or M.2 NVMe SSD cache cards for performance-focused deployments. Reliable Rackmount Operation With a 3U rackmount chassis, 16 hot-swappable drive bays and redundant power supplies, the RS4021xs+ is designed for continuous business storage operation and simplified maintenance. Technical Specifications Specification Details Brand Synology Model RackStation RS4021xs+ Product Type 16-Bay Rackmount NAS Form Factor 3U Rackmount Processor Intel Xeon D-1541 Processor Cores / Threads 8 Cores / 16 Threads Processor Speed 2.1GHz Hardware Encryption AES-NI System Memory 16GB DDR4 ECC UDIMM Maximum Memory 64GB Drive Bays 16 × 3.5-inch / 2.5-inch SATA HDD/SSD Bays Hot-Swappable Drives Supported Network Ports 2 × 10GbE RJ45, 4 × 1GbE RJ45 USB Ports 2 × USB 3.2 Gen 1 Type-A Expansion Ports 2 × Expansion Ports PCIe Expansion 2 × PCIe 3.0 x8 Slots RAID Support Synology RAID F1, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6 and RAID 10 Internal File System Btrfs and ext4 Operating System Synology DiskStation Manager (DSM) Maximum Single Volume Size 108TB / 200TB Maximum System Snapshots 65,536 Power Supply Redundant Power Supply System Fans 3 × 80mm Fans Dimensions 132.3 × 482 × 656.5 mm Weight 17.4 kg Package Contents Main Unit, Accessory Pack, 2 × AC Power Cords and Quick Installation Guide Applications Enterprise Storage, Backup, Virtualisation, File Sharing, Surveillance, Collaboration and Disaster Recovery The Synology RackStation RS4021xs+ delivers scalable 16-bay enterprise storage, built-in 10GbE connectivity, ECC memory and redundant power protection for demanding business NAS deployments.