Synology

Synology RackStation RS4021xs+ NAS Server with Xeon 2.1GHz CPU, 64GB Memory, 160TB HDD Storage, 2 x 10GbE LAN Ports, DSM Operating System Bundle with Rail kit

Name: Synology RackStation RS4021xs+ NAS Server with Xeon 2.1GHz CPU, 64GB Memory, 160TB HDD Storage, 2 x 10GbE LAN Ports, DSM Operating System Bundle with
Brand: Synology
SKU: B0FV977JGH
Price: 15539.00 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-06

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$15539.00

As an Amazon Associate, SpecPicks earns from qualifying purchases.

View Current Price on Amazon → Compare to similar nas & home servers

*Price sourced from Amazon.com. Last updated 2026-04-20. Price and availability subject to change.

Bottom line: The Synology RackStation RS4021xs+ NAS Server with Xeon 2.1GHz CPU, 64GB Memory, 160TB HDD Storage, 2 x 10GbE LAN Ports, DSM Operating System Bundle with Rail kit is a niche pick — read recent reviews before buying in the nas & home servers category, priced around $15539.00. Compare close alternatives before committing.

Synology RackStation RS820RP+, made for a variety of server roles such as backup, virtualization, file storage, email servers, & domain controllers; sliding rail kit included for effortless server installation.Form Factor: NAS Rack ServerInternal File System Format: EXT4, BtrfsPorts: 4 x RJ-45 1GbE LAN Ports (with Link Aggregation / Failover support); 2 x USB 3.2 Ports; 1 x eSATA PortProcessor: Atom C3538 4-Core 2.1GHz CPUMemory: 18GB DDR4 non-ECCStorage: 32TB HDD storage for High-Capacity StoragePower: Redundant Power SupplyOperating System: Synology DSM SoftwareFeatures: iSCSI Target…

SpecPicks Verdict

SpecPicks scored Synology RackStation RS4021xs+ NAS Server with Xeon 2.1GHz CPU, 64GB… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the nas & home servers category. Synology's nas & home servers lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

Common buyer scenarios for nas & home servers of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Synology NAS chassis comes in a sealed box.
✓ Backed by Synology's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

Synology RackStation RS820RP+ is a compact and scalable 4-bay rackmount NAS and is an ideal choice for remote office or small business with limited office space; sliding rail kit is included for easy server installation
Atom C3538 4-Core 2.1GHz CPU; 18GB DDR4 non-ECC Memory; 32TB HDD for High-Capacity Storage; 4 x RJ-45 1GbE LAN Ports (with Link Aggregation / Failover support); 2 x USB 3.2 Ports; 1 x eSATA Port; Redundant Power; Btrfs File System for Advanced LUN iSCSI Service
Features: Easy to use Synology DSM Operating System, desktop-like layout, iSCSI Target, Backup with Snapshot Replication Technology Support, Near Unlimited File Management and Sharing, Digital Asset Protection, Comprehensive Built-In Security Tools, Redundant Power, and Storage Virtualization Solution Compatibility
Synology NAS chassis comes in a sealed box.
Hard drives and memory upgrades included separately, NOT installed, installation required.

Full Specifications

Size	c) 160TB HDD Storage
Brand	Synology
Connectivity	USB
Model Number	RS4021xs+
Number of Items	1
Warranty Description	Manufacturer

Ready to buy?

Synology RackStation RS4021xs+ NAS Server with Xeon 2.1GHz CPU, 64GB Memory, 160TB HDD Storage, 2 x 10GbE LAN Ports, DSM Operating System Bundle with Rail kit is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-04-20. Price and availability subject to change.