Synology RS4021xs+

Name: Synology RS4021xs+
Brand: Synology
SKU: RS4021xs+
Availability: InStock

Brand : Synology

Reference : RS4021xs+

XS+/XS Series : RackStation RS4021xs+

Enterprise NAS with built-in service continuity engineered for data-intensive applications

CPU: Intel Xeon D-1541 8-core 2.1 (base) / 2.7 (turbo) GHz

RAM: 16 GB DDR4 ECC UDIMM (Max 64GB)

RJ-45 10GbE LAN Port x2

RJ-45 Gigabit LAN Port x4

USB 3.2 Gen 1 Port x2

Expansion Port x2

PCIe Gen3 x8 slot x2

Redundant Power Supply

5 Years Warranty

----- Reference -----

Synology RS4021xs+, 16 Bays NAS, Enterprise NAS with built-in service continuity engineered for data-intensive applications, CPU: Intel Xeon D-1541 8-core 2.1 (base) / 2.7 (turbo) GHz, RAM: 16 GB DDR4 ECC UDIMM (Max 64GB), RJ-45 10GbE LAN Port x2, RJ-45 Gigabit LAN Port x4, USB 3.2 Gen 1 Port x2, Expansion Port x2, PCIe Gen3 x8 slot x2, Redundant Power Supply, 5 Years Warranty

Drive Bays : 16-Bays NAS

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Description
Product Details

Synology RackStation RS4021xs+

Enterprise NAS with built-in service continuity engineered for data-intensive applications

Securing your business assets

The 16-bay RS4021xs+ provides solid data security and lightening-fast performance with over 234K 4K random read IOPS and 6,258 MB/s sequential read throughput¹. Together with its 8-core processor, ECC memory, advanced snapshot technology, and built-in 10GbE connectivity, the RS4021xs+ can support large multi-user environments while handling data-intensive workloads.

Download Datasheet

Compute

Intel^® Xeon^® D-1541 8-core 2.1 GHz

Networking

Built-in dual-port 10GbE

Memory

16 GB ECC DDR4 Up to 64 GB

Scalability

Up to 40 drive bays with RX1217RP/RX1217

Engineered for service continuity

The RS4021xs+ ensures mission-critical data is always available, enabling businesses to deliver the best results, even in the face of disaster.

Redundant power

Dual PSUs provide protection against a PSU failure or accidental cord removal while hot-swappable fans can be replaced without powering down the system.

Maximize service availability

Synology High Availability (SHA) pairs two identical units together creating an active-passive cluster with minute-level failover.

Next-generation file system

Btrfs prevents data corruption and reduces maintenance overheads with advanced storage technologies and optimized snapshots.

Customize to your business

The RS4021xs+ includes two PCIe slots for performance, networking, and storage upgrades enabling it to adapt to any business environment².

Double bandwidth

Upgrade network bandwidth in minutes by 2x or more with Synology’s range of 10GbE NICs.

SSD cache

Boost read/write IOPS by up to 16 times by enabling SSD cache with our Synology M.2 NVMe adapter cards and SNV3500 SSDs, or by installing one or more 2.5” SAT5200 SSDs.

Quickly and easily scale up to 40 drives with two RX1217RP/RX1217 expansion units.

Storage for virtualization

Synology iSCSI storage supports mainstream virtualization solutions with an easy management interface to enhance usability. VMware vSphere 6.5 and VAAI integration helps offload storage operations. Windows Offloaded Data Transfer (ODX) speeds up data transfer. OpenStack Cinder support turns your Synology NAS into a block-based storage component. Additionally, Synology Storage Console enables even more simplified storage provisioning and management options in VMware and Windows environments.

Works best with Synology drives

Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.

Enterprise Series 3.5" SATA

Enterprise Series 2.5" SATA

Enterprise Series M.2 NVMe

5-year warranty

At Synology, we are committed to product innovation and quality. The RS4021xs+ is backed by a 5-year limited warranty that includes technical support and hardware replacement services to maximize your return on investment.

RackStation RS4021xs+

1Power button and indicator
2Alert Off Button
3Drive tray
4Drive status indicator

5PSU fan
6Power Port
7PSU Indicators & Alert Off Buttons
8Console port

91GbE/10GbE RJ-45 Ports
10USB 3.2 Ports
11Expansion port
12PCIe expansion slot

13Reset button

Hardware Specifications

CPU	CPU Model	Intel Xeon D-1541
	CPU Quantity	1
	CPU Architecture	64-bit
	CPU Frequency	8-core 2.1 (base) / 2.7 (turbo) GHz
	Hardware Encryption Engine
Memory	System Memory	16 GB DDR4 ECC UDIMM
	Memory Module Pre-installed	16 GB (16 GB x 1)
	Total Memory Slots	4
	Maximum Memory Capacity	64 GB (16 GB x 4)
Storage	Drive Bays	16
	Maximum Drive Bays with Expansion Unit	40 (RX1217/RX1217RP x 2)
	Compatible Drive Type*	3.5" SATA HDD 2.5" SATA SSD
	Hot Swappable Drive*
External Ports	RJ-45 1GbE LAN Port	4 (with Link Aggregation / Failover support)
	RJ-45 10GbE LAN Port	2 (with Link Aggregation / Failover support)
	USB 3.2 Gen 1 Port*	2
	Expansion Port	2
	Notes	The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
PCIe	PCIe Expansion	2 x Gen3 x8 slots (x8 link)
Appearance	Form Factor (RU)	3U
	Size (Height x Width x Depth)	132.3 mm x 482 mm x 656.5 mm
	Weight	17.4 kg
	Rack Installation Support*	4-post 19" rack (Synology Rail Kit - RKS-02)
	Notes	The rail kit is sold separately
Others	System Fan	80 mm x 80 mm x 3 pcs
	Fan Speed Mode	Full-Speed Mode Cool Mode Quiet Mode
	Easy Replacement System Fan
	Power Recovery
	Noise Level*	44.7 dB(A)
	Scheduled Power On / Off
	Wake on LAN / WAN
	Power Supply Unit / Adapter	800 W* 550 W
	Redundant Power Supply
	AC Input Power Voltage	100 V to 240 V AC
	Power Frequency	50/60 Hz, Single Phase
	Power Consumption	145.79 W (Access) 62.68 W (HDD Hibernation)
	British Thermal Unit	497.14 BTU/hr (Access) 213.74 BTU/hr (HDD Hibernation)
Temperature	Operating Temperature	0°C to 35°C (32°F to 95°F)
	Storage Temperature	-20°C to 60°C (-5°F to 140°F)
	Relative Humidity	5% to 95% RH
Certification	FCC CE BSMI VCCI RCM EAC CCC KC UL
Warranty	5 Years
	Notes	The warranty period starts from the purchase date as stated on your purchase receipt.
Environment	RoHS Compliant
Packaging Content	Main Unit X 1 Accessory Pack X 1 AC Power Cord X 2 Quick Installation Guide X 1
Optional Accessories	DDR4 ECC UDIMM: D4EC-2666-16G Expansion Units: RX1217/RX1217RP Enterprise Series 3.5" SATA HDD: HAT5300 Series Enterprise Series 2.5" SATA SSD: SAT5200 Series M.2 SSD & 10GbE Combo Adapter Card: E10M20-T1 M.2 SSD Adapter Card: M2D20 25GbE Network Interface Card: E25G30-F2 10GbE Network Interface Card: E10G21-F2/E10G30-T2/E10G18-T1 Rail Kit Sliding: RKS-02