Synology RS3618XS

Overview

The Synology RS3618XS is a rackmount NAS server designed to provide growing businesses and creative teams with a reliable and scalable storage solution. It supports up to twelve SATA hard drives or SSDs, offering a flexible storage pool that can expand as data demands increase. Powered by a quad-core Intel Xeon D-1521 processor and equipped with 8 GB of ECC DDR4 memory, this server delivers consistent performance for multitasking environments, including virtualization and heavy workloads.

With four Gigabit Ethernet ports and two PCIe 3.0 slots for optional 10 GbE network cards or NVMe SSD cache, the RS3618XS ensures fast and resilient network connectivity. Its compatibility with major virtualization platforms and advanced file system features make it a strong choice for businesses that require secure, efficient, and easily manageable data storage.

Key features

• Supports up to twelve 2.5-inch or 3.5-inch SATA drives, allowing flexible storage configurations and easy expansion.
• Intel Xeon D-1521 processor delivers stable performance for simultaneous virtual machines, surveillance, and development tasks.
• Expandable ECC DDR4 memory up to 64 GB ensures smooth operation under increasing workloads.
• Four Gigabit Ethernet ports enable link aggregation for higher throughput or failover to maintain network availability.
• Two PCIe 3.0 slots provide options for 10 GbE network cards or NVMe SSD cache to boost network speed and input/output operations.
• Advanced Btrfs file system offers snapshot technology for point-in-time recovery and automatic file self-healing to protect data integrity.
• Comprehensive backup solutions support Windows, Linux, Microsoft 365, and Google Workspace environments from a single management console.
• Synology Hybrid RAID simplifies drive management and future capacity upgrades, reducing administrative overhead.
• Scalable design allows connection of up to two expansion units, increasing total drive capacity to 36 without downtime.
• Energy-efficient cooling and power-saving features keep operating costs predictable and the server quiet in rack environments.
• Five-year warranty provides long-term reliability and peace of mind for IT managers and business owners.

Key specs

• Processor: Intel Xeon D-1521 quad-core, up to 2.4 GHz
• Memory: 8 GB ECC DDR4, expandable to 64 GB
• Drive bays: 12 x SATA (2.5-inch or 3.5-inch)
• Network interfaces: 4 x Gigabit Ethernet ports
• Expansion slots: 2 x PCIe 3.0
• RAID support: 0, 1, 5, 6, 10, JBOD, Synology Hybrid RAID
• File system: Btrfs with snapshot and self-healing capabilities
• Maximum drives with expansion: 36 (with Synology RX1217 or RX1217RP units)
• Warranty: 5 years

Connectivity and compatibility

The RS3618XS offers versatile connectivity options to fit into various network environments. Its four Gigabit Ethernet ports can be configured for link aggregation to increase bandwidth or set up failover paths to ensure continuous access during network interruptions. The two PCIe 3.0 slots allow installation of 10 GbE network cards for faster data transfer or NVMe SSD cache cards to accelerate storage performance.

This NAS server integrates smoothly with popular virtualization platforms such as VMware, Windows Hyper-V, Citrix, and OpenStack, making it suitable for virtualized data centers and development environments. Its compatibility with Windows and Linux workstations, as well as cloud services like Microsoft 365 and Google Workspace, supports diverse backup and synchronization needs.

Ideal uses and environments

The Synology RS3618XS is well suited to medium-sized businesses, creative studios, and IT teams that require a robust and expandable storage solution. It handles demanding workloads such as video editing, surveillance data management, and virtual machine hosting with ease. Its scalable design and advanced data protection features make it a reliable choice for environments where data integrity and uptime are critical.

Whether used as a primary file server, backup destination, or cloud sync hub, this NAS fits well in rack-mounted setups where space efficiency and quiet operation are important. IT managers will appreciate the centralized management through Synology DiskStation Manager and the long-term support backed by a five-year warranty.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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