Synology RackStation RS4021xs+ (16-bay 3U, Xeon D-1541, 10GbE)
High-capacity 3U rackmount storage for file services and backup targets.
We help you choose, configure, and deliver the right system — no obligation.
Configuration at a Glance
Tailored per engagement. Full technical overview below.
Configuration Options
Core specifications for this system. Every component is configurable to your workload — request a quote for a tailored build.
Capacity storage array (no GPU)
Intel Xeon D-1541, 8-core / 16-thread, up to 2.7 GHz
16 GB DDR4 ECC, expandable to 64 GB
16x 3.5"/2.5" SATA HDD/SSD bays; expandable with RX units
Overview
The RackStation RS4021xs+ is a 16-bay 3U platform driven by an Intel Xeon D processor, engineered for dependable file services, surveillance, and backup-target duty at scale. Nexus Compute specifies the drive layout, configures protection and replication, and delivers each unit tested and warranty-backed through authorized Synology distribution.
Who This Solution Is For
Business Benefits
Capacity without sprawl
Sixteen large-drive bays plus expansion centralize growing data onto one managed, protected platform.
License-free backup
Synology Active Backup protects servers, VMs, and endpoints to the NAS with no per-device licensing.
Operationally simple
DSM keeps day-to-day administration approachable for lean IT teams managing storage and backup.
Typical Business Use Cases
Centralized SMB/NFS file services
Veeam and Active Backup repository
Surveillance and video archive
Snapshot-protected departmental storage
Industry Applications
Technical Overview
Powered by an 8-core Intel Xeon D-1541 on Synology DSM, the RS4021xs+ provides 16 hot-swap 3.5-inch SATA HDD/SSD bays in a 3U chassis with redundant power. RAID, Btrfs snapshots, and replication are configured to data-protection requirements, with expansion units extending raw capacity into the petabyte range.
| Accelerator | Capacity storage array (no GPU) |
| CPU | Intel Xeon D-1541, 8-core / 16-thread, up to 2.7 GHz |
| Memory | 16 GB DDR4 ECC, expandable to 64 GB |
| Storage | 16x 3.5"/2.5" SATA HDD/SSD bays; expandable with RX units |
| Networking | Dual 10GBASE-T onboard plus 1GbE; PCIe NIC expansion |
| Form Factor | 3U rackmount, redundant hot-swap PSU |
| Management | Synology DSM with Btrfs snapshots and replication |
| Warranty | 5-year limited hardware warranty via authorized channel |
Specifications are indicative and configured to each engagement. Request a quote for a configuration tailored to your requirements.
Warranty, Support & Fulfillment
Every system ships from an authorized channel, configured and tested, with the documentation enterprise buyers need — backed by warranty and a dedicated account team.
Enterprise Warranty
Full manufacturer warranty with optional on-site, next-business-day support and extended coverage.
Authorized Channel
Sourced through Tier-1 distribution and OEM partners — never grey market. Asset & warranty records included.
Lead Time & Deployment
48-hour quotes, then configured, burn-in tested, and delivered on a committed schedule.
Nationwide Fulfillment
Coordinated logistics, rack-and-stack, and delivery wherever your infrastructure lives.
Frequently Asked Questions
Is this a good backup target for Veeam?
Yes. The RS4021xs+ works as a high-capacity SMB/NFS or iSCSI repository for Veeam, and Synology Active Backup adds license-free protection for servers, VMs, and endpoints.
How does it protect against ransomware?
Immutable Btrfs snapshots let you roll back to a clean point in time, and we pair the NAS with off-site replication for a defensible 3-2-1 recovery posture.
What raw capacity is achievable?
With 16 internal bays and expansion units, raw capacity scales into the petabyte range; we size drive capacity and RAID level to your retention and growth plans.
Hardware Assistance
Configure the Synology RackStation RS4021xs+ (16-bay 3U, Xeon D-1541, 10GbE) with Nexus Compute
Tell us your requirements and a hardware specialist will help you specify, configure, and quote the right system — typically within two business days. No obligation.