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Synology Unified Controller UC3200
Active-Active IP SAN for MissionCritical Services

Synology Products
Synology Unified Controller
Synology Unified Controller UC3200 12 Bay Active-Active IP SAN
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Designed for high-availability SAN environments, Synology Unified Controller UC3200 offers activeactive architecture for non-disruptive iSCSI services. It provides resilient data protection solutions with a simplified management interface while maximizing service uptime for critical services. UC3200 is backed by Synology's 5-year limited warranty.

  • High performance, active-active storage solution to provide non-disruptive iSCSI services
  • Over 140,000 4K Random Write IOPS1, enterprise-class performance with low latency
  • Flexible capacity able to scale up to 36 drives with RXD1219sas expansion units
  • Virtualization-ready with VMware vSphere, Microsoft Hyper-V , Citrix XenServer and OpenStack® Cinder compatibility
  • Resilient cache protection mechanism to prevent data loss
  • Instant data protection with built-in snapshot and replication technologies
  • Simple and unified user interface to effortlessly manage data and storage tasks
  • Backed by Synology's 5-year limited warranty

Powerful and Flexible Scalability

UC3200 is an affordable yet reliable IP SAN solution for mission-critical environments. Within the 2U chassis are active-active controller nodes, each powered by an Intel® Xeon® D-1521 4-core processor and 8 GB DDR4 ECC UDIMM, expandable up to 64 GB. It delivers outstanding performance of over 140,000 4K Random Write IOPS.

UC3200 allows you to start small and grow in the future. It holds 12 x 3.5"/2.5" SAS interface drive slots by default, and can be further scaled up to 36 SAS drives when connected with two RXD1219sas expansion units. It comes with single 10GbE and dual 1GbE RJ-45 ports per controller and supports 10GbE / 25GbE network interface card expansion with PCIe 3.0, boosting network bandwidth with Link Aggregation.

Uncompromising Reliability

The active-active controller design maximizes the system uptime for your important applications. The inter-connectivity through high-speed NTB (Non-Transparent Bridge) between the two controllers allows one of them to seamlessly take over the service when the other breaks down. In addition, UC3200 syncs all cached data between the two controllers, avoiding data loss in case of controller failure before data is written into the drives. The built-in SATA-DOM on each controller is solely used for running the operating system, allowing system partition to be separated from data to optimize system stability.

Rock-solid Data Protection

UC3200 supports Synology Snapshot Replication, which provides schedulable, near-instantaneous data protection for mission-critical services. It supports up to 4,096 system-wide replications to offsite servers and local volumes, allowing for application-aware snapshot protection and instant recovery of virtual machines in iSCSI LUNs in the event of a disaster.

Non-disruptive iSCSI Service for Virtualization

UC3200 enhances work efficiency with a simple management interface. VMware vSphere® 6.5 and VAAI integration helps offload storage operations and optimizes computational efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rates, while support for OpenStack Cinder transforms your UC3200 into a blockbased storage component.

UC3200 also complies with the iSCSI industrial standard ALUA, allowing hosts to identify optimized paths to increase transfer performance and efficiency.

Simple and Intuitive Management

Powered by DSM UC operating system, UC3200 offers comprehensive functionalities while keeping the intuitive DSM experience to ease the learning curve. The simplified management interface allows you to manage the two controllers from a single management portal. The builtin monitor function gives the most updated status in real time and provides prompt notifications when important events occur, allowing IT administrators to respond accordingly.


Delivering reliable, highly available iSCSI services

Realizing high-availability architecture in just one single chassis, the two controllers in Synology UC3200 work simultaneously and can automatically fail over to each other in the event of disaster, delivering services without any interruptions.

12 x 3.5"/2.5" HDD/SSD

High-performance SAS interface drive slots with maximum 576TB raw capacity. Supporting SED (Self Encrypting Drive) to encrypt all data to hard drives, UC3200 provides upmost data security at the hardware level.

4 x DDR4 memory slotsFanSATA DOMNon-Transparent Bridge (NTB) Processor Armed with Intel® Xeon® D-1521 4-core 2.4 GHz processor burst up to 2.7 GHz, UC3200's dual CPUs provide enterprise-class performance of 140,000 4K random write IOPS with low latency.

4 x DDR4 memory slots
8GB ECC UDIMM, expandable up to 64GB to boost system performance.

Redundant, modularized fans for easy maintenance and replacement, minimizing service downtime.

The dedicated SATA DOM isolates the operating system from the regular data stored in hard drives. Non-Transparent Bridge (NTB) Connect two controller modules at a blazingly fast speed and instantly sync memory data between the controllers to prevent cached data loss when one controller is unavailable.

Works with mainstream virtualization systems

Optimized for virtualization environments.

  • Integrated with VMware vSphere 6.5, Microsoft Hyper-V, and VAAI to offload storage operations and optimize computational efficiency.
  • Windows Offloaded Data Transfer (ODX) is supported to speed up data transfer and migration rates.
  • Turn Synology UC3200 into a block-based storage component with the support of OpenStack Cinder.
  • Compliance with iSCSI industry standard ALUA allows hosts to identify the optimized paths to increase data transfer performance and efficiency.
Fully certified storage virtualization solutions

A system built exclusively for iSCSI

DSM UC, an operating system designed to ease the learning curve, allows you to manage the two controllers from one single portal. The built-in monitor applications display the status at a glance and send prompt notifications when important events occur, so that IT administrators can stay alert to potential problems and respond in the shortest time possible.

Disaster-proof your critical data

Snapshot Replication is put in place with the support of Btrfs file system, offering schedulable and near-instantaneous data protection. Supporting up to 4,096 system-wide snapshots for local volumes or offsite servers, UC3200 brings application-aware snapshot protection and instant recovery of virtual machines in iSCSI LUNs in the event of a disaster.

Schedulable, near-instantaneous data protection

Supports up to 4,096 system-wide snapshots

Instant recovery of virtual machines

5-year warranty

At Synology, we are committed to product innovation and quality. Synology guarantees a robust and reliable data management experience with a 5-year limited warranty, providing responsive technical support and hardware replacement services to maximize your return on investment.

Synology Replacement Service (SRS)

SRS provides free advance replacement units as early as the next business day in selected regions, maximizing the service uptime for your mission-critical storage and ensuring your business continuity.


  1. Power Button & Indicator
  2. Beep off button
  3. Drive Trays
  4. Drive Status Indicator
  5. Power port
  6. PSU indicator and beep off button
  7. PSU fan
  8. PCIe expansion slot
  9. Console port
  10. 1GbE RJ-45 port
  11. 10GbE RJ-45 (10GBase-T) port
  12. Expansion port
  13. Reset button
Unified Controller UC3200 Hardware Specifications:
Hardware Specifications
CPU Intel Xeon D-1521 4-core 2.4 GHz, Turbo Boost up to 2.7 GHz
Hardware encryption engine Yes (AES-NI)
Memory 8 GB DDR4 ECC UDIMM (expandable up to 64 GB)
Compatible drive type 12 x 3.5" or 2.5" SAS/SATA HDD/SSD (drives not included)
Hot swappable drive Yes
External port 1 x expansion port
Size (Height x Width x Depth)
  • 88 x 430.5 x 692 mm
  • 88 x 482 x 724 mm (with server ears)
Weight 19.7 kg
LAN port
  • 2 x 1GbE RJ-45
  • 1 x 10GbE RJ-45 (10GBASE-T)
PCIe 3.0 slot
  • 1 x 8-lane x8 slot
  • 10GbE/25GbE network interface card support
System fan 4 (80 x 80 x 32 mm)
AC input power voltage 100 V to 240 V AC
Power Frequency 50 to 60Hz, single phase
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
Maximum operating altitude 5,000 m (16,400 ft)
General DSM specification
Networking protocol iSCSI, Telnet, SSH, SNMP
File system Btrfs (internal only)
Supported RAID type Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID F1
Storage management
  • Maximum single volume size: 108 TB
  • Maximum system snapshots: 4,096
  • Maximum internal volume: 32
SSD cache Read/write cache support
Virtualization VMware vSphere 6.5, Microsoft Hyper-V, Citrix, OpenStack
Supported client Windows Server 2008 onwards, VMware 5 onward, Oracle Solaris 10 onward, Citrix XenServer 7.2 onward, SUSE Linux ES 11 onward, Red Hat® ES 6.10 onward
Supported browser Chrome, Firefox, Internet Explorer 11 onwards, Safari 11 onwards; Safari (iOS 11 onwards), Chrome (Android™ 6.0 onwards)
File Server & Synchronization
iSCSI Manager
  • Maximum iSCSI target: 128
  • Maximum iSCSI LUN: 128
  • iSCSI LUN clone/snapshot support
Data Protection
Snapshot Replication Maximum of replication: 32
Certifications and Packaging
Environment safety RoHS compliant
Package content
  • 1 x UC3200 main unit
  • 1 x Quick Installation Guide
  • 1 x Accessory pack
  • 2 x AC power cords
Optional accessories
  • 8 GB DDR4-2666 ECC UDIMM (D4EC-2666-8G)/16 GB DDR4-2400 ECC UDIMM (D4EC-2400-16G)
  • Synology E10G17-F2/E10G18-T1/E10G18-T2 10Gbps Ethernet adapters
  • Synology RKS1317 - Rail Kit Sliding
  • Synology Expansion Unit RXD1219sas
Warranty 5 Years


Download the Synology Unified Controller UC3200 Datasheet  (PDF).

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Pricing Notes:

Synology Products
Synology Unified Controller
Synology Unified Controller UC3200 12 Bay Active-Active IP SAN
Our Price: Request a Quote
96TB Bundle
Synology UC3200 (12 bay) with Exos 7E8 HDD 512E SAS Hard Drive (QTY 12x8TB) 96TB Capacity
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120TB Bundle
Synology UC3200 (12 bay) with Exos X16 HDD 512E SAS Hard Drive (QTY 12x10TB) 120TB Capacity
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144TB Bundle
Synology UC3200 (12 bay) with Exos X16 HDD 512E SAS Hard Drive (QTY 12x12TB) 144TB Capacity
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168TB Bundle
Synology UC3200 (12 bay) with Exos X16 HDD 512E/4KN SAS Hard Drive (QTY 12x14TB) 168TB Capacity
Our Price: Request a Quote
192TB Bundle
Synology UC3200 (12 bay) with Exos X16 HDD 512E/4KN SAS Hard Drive (QTY 12x16TB) 192TB Capacity
Our Price: Request a Quote