Description

Synology RackStation RS3621RPxs 12-Bay NAS Enclosure

Enterprise-grade 12‑bay rackmount NAS with Intel Xeon D‑1531 six-core CPU, 8 GB ECC DDR4 (up to 64 GB), dual PCIe for 10 GbE/SSD cache, redundant power supply, scalable to 36 bays.


Product Overview

The Synology RackStation RS3621RPxs is a high-performance 12‑bay 2U rackmount NAS designed for mission-critical business environments. Powered by an Intel Xeon D‑1531 six-core processor and 8 GB of ECC DDR4 memory (expandable to 64 GB), it delivers robust compute capabilities, high I/O throughput, and enterprise-grade data protection. Featuring dual PCIe slots for SSD caching or 10/25 GbE network expansion, built-in redundant power supplies, hot-swappable fans, and support for up to 36 drives with RX1217(RP) units, it caters to scalable virtualized workloads and demanding file services.


Key Features

  • Intel Xeon D‑1531 six-core 2.2 GHz CPU (up to 2.7 GHz turbo) delivering strong multitasking and AES-NI encryption performance.

  • 8 GB ECC DDR4 memory included, expandable to 64 GB across four UDIMM slots

  • 12 hot-swappable drive bays (3.5″/2.5″ SATA SSD/HDD); expands to 36 bays with two RX1217(RP) units.

  • Dual PCIe Gen3 x8 slots (electrical x8) support SSD caching and 10/25 GbE network cards.

  • Redundant hot-swappable 500 W power supplies and fans for continuous uptime B&H Photo Video

  • High I/O throughput: up to 4,718 MB/s sequential read, 189K 4K random read IOPS.

  • DSM software with Btrfs, snapshots, file self-healing, and High Availability clustering support


Specs

Specification Details
CPU Intel Xeon D‑1531, 6-core 2.2 GHz (turbo to 2.7 GHz)
Memory 8 GB ECC DDR4 (1×8 GB); 4 DIMM slots, up to 64 GB
Drive Bays 12 × hot-swappable 3.5″/2.5″ SATA
Max Expansion Up to 36 bays with RX1217(RP) units
PCIe Slots 2 × Gen3 x8 (electrical x8)
Network Connectivity 4 × 1 GbE RJ‑45; PCIe for 10/25 GbE expansion
USB Ports 2 × USB 3.2 Gen 1
RAID Support SHR, RAID 0/1/5/6/10, RAID F1, JBOD, Basic
File Systems Btrfs, EXT4 (internal); external: Btrfs, EXT4/3, FAT, NTFS, HFS+, exFAT
Power Supply Dual 500 W redundant PSUs
Cooling & Noise Hot-swappable fans; ~50 dB(A) at full load
Performance Metrics 4,718 MB/s sequential read; 189K 4K IOPS
Dimensions (2U Rack) ~88 × 482 × 724 mm; Weight ~14.5 kg
Warranty 5 years standard

Why Choose This Product

  • Combines enterprise-processing power (Xeon D) with ECC memory and scalable storage in a compact 2U form.

  • Dual PCIe slots and redundant power enable high availability and future-proof networking/storage expansion.

  • High I/O and snapshot-enabled Btrfs file system support virtualization, database, and intensive workloads.

  • Built for continuous uptime with hot-swappable components and high availability clustering support.


FAQs

Q1: What is the maximum memory supported?
Supports up to 64 GB ECC DDR4 across four UDIMM slots (1 × 8 GB pre-installed).

Q2: Can I expand storage beyond 12 drives?
Yes—with two RX1217(RP) expansion units, total bays can scale to 36.

Q3: Does it support 10/25 GbE network connectivity?
Yes—add a compatible network card via one of the PCIe slots.

Q4: Is it suitable for virtualization or iSCSI storage?
Absolutely—DSM supports VMware, Hyper-V, and virtual machines via Virtual Machine Manager. High IOPS and Xeon CPU make it well-suited .

Q5: What happens if a power supply fails?
Redundant hot-swappable PSUs ensure continuous operation during a failure or replacement.

Q6: Is this rack NAS loud in operation?
It can reach ~50 dB(A) under full workload, making it best suited for data center environments with noise isolation.