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QNAP TDS-16489U-SF3-R2 Diskless 16-Bay Rackmount NAS


Special Order

Expected availability: no current ETA

This item is noncancelable and nonreturnable.

MPN: TDS-16489U-SF3-R2-US

QNAP TDS-16489U-SF3-R2 Diskless, 16-bay Dual Processor NAS and iSCSI/ IP-SAN. 3U, SAS 12G, SAS/SATA 6G, 2 x 1GbE, 4 x 10GbE (SFP+), 40GbE-ready, Redundant PSU. 4 additional 2.5" drive tray for cache/storage. Dual Intel Xeon E5-2630 v4 2.2GHz 10 Core Processors, 256GB DDR4 RDIMM (up to 1TB), PCIe expansion slot x4, redundant power supply, Without Rail Kit.

  • Processor: E5-2630 v4 10-core 2.2 GHz processor x2
  • System Memory: 256GB RDIMM DDR4 (8 x 32GB)
  • Maximum Memory: RDIMM/LRDIMM: 1 TB (16 x 64 GB)
  • 10 Gigabit Ethernet Port: 4 x 10GbE SFP+
  • PCIe Slot: 4 (3 x PCIe Gen3 x8, 1 x PCIE Gen3 x16)
  • Drive Compatibility: 16 x 3.5-inch SAS/SATA hard drive, or 2.5-inch SAS/SATA SSD. 4 x 2.5-inch SAS/SATA SSD
  • RAID: RAID 50/60 is recommended for NAS with over 10 disks to strike a balance between capacity, protection, and performance.
Intel Xeon CPU
256G DDR4 Memory
SAS/SATA Hard Drive
SAS/SATA Solid State Drive
16 Drive Bays Drive Bays
16 Drives
20 Drives




Sku: TDS-16489U-SF3-R2-US

Integrating an application server and storage server into one system, the next-generation TDS-16489U R2 also provides you with the option of using either QES (an enterprise-grade OS that provides efficient and reliable storage for mission-critical tasks) or QTS (a feature-rich OS for storage and diverse application servers). Whether being used as a file server, virtualization server, VDI, medium-sized data center, video streaming, surveillance storage, and efficient file backup & recovery, the flexible TDS-16489U R2 with dual CPU and dual OS options is your ideal solution.

Product Highlights

  • Install PCIe cards to increase application performance, including 40GbE/ 25GbE/ 10GbE adapters, Fibre Channel cards, and graphics cards.
  • QES ensures data integrity with self-healing and uses end-to-end checksums to detect and correct silent data corruption.
  • QES supports data deduplication and compression to optimize storage utilization and data access performance.
  • QES supports near-limitless snapshots and SnapSync for efficient remote backup & disaster recovery solution.
  • Reliable storage for virtualization. QTS supports hosting VMs and containers; QES supports block-level storage for OpenStack® environments.
  • QTS supports software-defined SSD over-provisioning to improve write performance for IOPS-demanding applications.
CPU E5-2630 v4 10-core 2.2 GHz processor x2
*Available with customization requirement
CPU Architecture 64-bit x86
Floating Point Unit
Encryption Engine (AES-NI)
System Memory 256GB RDIMM DDR4 (8 x 32GB)
Maximum Memory RDIMM/LRDIMM: 1 TB (16 x 64 GB)
Memory Slot 16 x Long-DIMM DDR4
You can only use one type of dual in-line memory module (DIMM) at a time. Do not use registered DIMM (RDIMM) with load-reduction DIMM (LRDIMM) memory.
For the memory installation guidelines, see chapter 5 of the TDS-16489U User Guide.
Flash Memory 4GB (DOM for dual OS)
Drive Bay Front: 16 x 3.5-inch
Rear: 4 x 2.5-inch
Drive Compatibility 3.5-inch bays:
3.5-inch SATA/SAS hard disk drives
2.5-inch SATA/SAS hard disk drives
2.5-inch SATA/SAS solid state drives

2.5-inch bays:
2.5-inch SATA/SAS solid state drives
Gigabit Ethernet Port (RJ45) 2
For a list of compatible network adapters, please visit the Compatibility List.
For instructions on how to install network adapters, please refer to Chapter 6 of the QNAP NAS Hardware Manual.
10 Gigabit Ethernet Port 4 x 10GbE SFP+
Jumbo Frame
PCIe Slot 4 (3 x PCIe Gen3 x8, 1 x PCIE Gen3 x16)
USB 3.0 port 4
Form Factor 3U Rack Mount
LED Indicators HDD 1-16, Status, 10 GbE, LAN, storage expansion port status
Buttons Power, Reset
Dimensions (HxWxD) 130.8 × 444 × 744 mm
Weight (Net) 22.42 kg
Weight (Gross) 30.19 kg
Operating temperature 0 - 40 °C (32°F - 104°F)
Relative Humidity 5~95% RH non-condensing, wet bulb: 27˚C (80.6˚F)
Power Supply Unit Redundant/ Hot Swap ATX Power Supply,Input:
50-60 Hz
100-127V~/ 8.5A
200-240V/ 4.2A
Output: 650W
Power Consumption: HDD Sleep Mode 254.21 W
Power Consumption: Operating Mode, Typical 362.86 W
Fan 4 x 6cm smart cooling fan (12V DC)
Sound Level 37.8 db(A)
Note: Use only QNAP memory modules to maintain system performance and stability. For NAS devices with more than one memory slot, use QNAP modules with identical specifications. Warning: Using unsupported modules may degrade performance, cause errors, or prevent the operating system from starting.
* Sound Level Test Environment: Refer to ISO 7779; Maximum HDD loaded; Bystander Position; Average data from 1 meter in front of operating NAS.
Designs and specifications are subject to change without notice.

QM2 - Upgrade your QNAP NAS Experience with M.2 SSD Caching and 10G in One Card

QM2 is designed specifically to upgrade your entry and mid-end QNAP NAS system! QNAP puts 2 M.2 SSD slots (SATA or PCIe NVMe) and one 10GBase-T network port into a single PCIe expansion card. Installed M.2 SSD sticks are covered by a giant heatsink as well as a smart fan for heat dissipation which ensure operational stability and longevity. With this PCIe expansion card, you can enable SSD Caching or auto tiering while populate all your NAS bays with high capacity HDD!

Application for QM2 SSD slots:

  1. Create a volume on these SSD and use them as extra storage
  2. Enable Read Cache
  3. Enable Read/Write Cache
  4. Enable Qtier feature
  5. Boost performance in case of memory swapping

What is Qbit?

Configured system orders start here!
The selected drives are batch controlled and tested using our HDD and SSD servers. Passed drives are then installed in the NAS with Volume and RAID set. Our pre-burn testing prepares the NAS with an initial system and drive testing cycle to ensure that the integrity of the entire system is tested and passed with no issues at all.

Our stress testing (burn-test) cycle commences for a minimum of 24 hours and extends to 48 hours if requested or required. This is undertaken in order to ensure stability when used in a normal environment. These tests can include extremes of workload (constant I/O's), CPU and memory use, thermal load (heat), clock speed, or voltages, bus and connectivity components, with the primary stress testing software aiming to test stability by trying to force a system to fail. Our tests put a greater emphasis on robustness, availability and error handling heavy loads.

Once the tests are complete we QA and pack the system back into it's retail box. Then it's double boxed to protect the unit during shipping. You receive your QNAP NAS Ready To Plug 'N' Store. It doesn't get any easier. Buy your NAS from the QNAP EXPERTS at QNAP DIRECT.