The shipping process is fully robotic and orders are normally pulled and shipped quickly in 7 different warehouses across the US and then dropped in sealed USPS, UPS and FedEx containers for pick-up on the next business day. High volume or backordered items may have additional shipping delays. Once pulled, orders cannot be stopped, however you can return orders for refund unopened if you have changed your mind. Tracking normally is sent / updated within 48 hours of pick-up. Delivery is normally 3-10 business days after leaving the warehouse, however carrier delays may occur. Shipping may take longer in rural areas, due to carrier delay, weather or acts of God. Weekends and Holidays do not count as business days and have no pickup, movement or delivery.
Covid 19 Update — We have seen slowdowns and backlogs in package pickup, sorting, scanning and delivery by UPS, Fedex and USPS caused by worker shortages and facilities disruption due to the Covid 19 Pandemic. Some UPS and USPS hubs are no longer scanning all packages, as a result some tracking will show nothing until delivery.
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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 throughput. 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.
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 RX1217(RP)
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. Learn more
Next-generation file system
Btrfs prevents data corruption and reduces maintenance overheads with advanced storage technologies and optimized snapshots. Learn more
Customize to your business
The RS4021xs+ includes two PCIe slots for performance, networking, and storage upgrades enabling it to adapt to any business environment.
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.
Storage expansion
Quickly and easily scale up to 40 drives with two RX1217(RP) expansion units.
The ultimate backup solutions - license-free
Keep disaster at bay
Hyper Backup
A comprehensive backup and recovery solution for securing data stored on Synology servers. Backup data locally, to another Synology device, rsync server, or cloud-based storage such as Google Drive, Dropbox, S3-compatible destinations, and Synology C2. Deduplication, integrity checks, and incremental transfer technology reduce bandwidth and storage used. Learn more
Snapshot Replication
Easily schedule flexible point-in-time backups of shared folders and iSCSI LUNs with an RPO as low as 5 minutes and recovery in seconds. Set up replication and failover to other Synology storage systems for fast RTOs and minimal service disruption. Learn more
Active Backup Suite
Enables administrators to easily backup the entire IT infrastructure to their NAS, including Windows & Linux workstations and servers, file servers, VMware and Hyper-V virtual machines, and Microsoft 365 and Google Workspace accounts. Backups benefit from deduplication, multiversioning, and optimizations to reduce bandwidth and storage used. Learn more
Manufacturer | Synology, Inc |
Manufacturer Part Number | RS4021XS+ |
Manufacturer Website Address | http://www.synology.com |
Brand Name | Synology |
Product Line | RackStation |
Product Series | XS |
Product Model | RS4021XS+ |
Product Name | RackStation RS4021XS+ SAN/NAS Storage System |
Packaged Quantity | 1 |
Product Type | SAN/NAS Storage System |
Storage: | |
Number of Hard Drives Supported | 16 |
Number of Hard Drives Installed | 0 |
Number of Solid State Drive Supported | 16 |
Number of Solid State Drive Installed | 0 |
Processor & Chipset: | |
Processor Manufacturer | Intel |
Processor Type | Xeon |
Processor Model | D-1541 |
Processor Core | Octa-core (8 Core) |
Processor Speed | 2.10 GHz |
Memory: | |
Standard Memory | 16 GB |
Memory Technology | DDR4 SDRAM |
Network & Communication: | |
Ethernet Technology | Gigabit Ethernet 10 Gigabit Ethernet |
I/O Expansions: | |
Number of Total Expansion Bays | 16 |
Number of 2.5"/3.5" Bays | 16 |
Controllers: | |
Controller Type | Serial ATA |
RAID Supported | Yes |
RAID Levels | 0, 1, 5, 6, 10, Basic, JBOD, RAID F1 |
Interfaces/Ports: | |
Total Number of USB Ports | 2 |
Number of USB 3.2 Gen 1 Ports | 2 |
Network (RJ-45) | Yes |
Number of Network (RJ-45) Ports | 6 |
Software: | |
Operating System | DiskStation Manager |
Management & Protocols: | |
Protocols | CIFS AFP NFS FTP WEBDAV SMB 1.0 SMB 2.0 SMB 3.0 NFSv3 NFSv4 NFSv4.1 iSCSI HTTP HTTPS SNMP LDAP CalDAV DLNA |
Power Description: | |
Number of Power Supplies Installed | 2 |
Maximum Power Supply Wattage | 800 W |
Redundant Power Supply | Yes |
Physical Characteristics: | |
Height | 5.2" |
Width | 19" |
Depth | 25.8" |
Form Factor | Rack-mountable |
Rack Height | 3U |
Weight (Approximate) | 38.36 lb |
Miscellaneous: | |
Country of Origin | Taiwan |
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