TDS-h2489FU R2
Dual-CPU U.2 NVMe all-flash rackmount NAS, expandable for 100GbE and PB-scale storage
The flagship TDS-h2489FU R2 U.2 NVMe all-flash rackmount NAS, powered by dual Intel® Xeon® Silver 4300 series processors in 16/32-core configurations, delivers a highly efficient, secure, and reliable enterprise storage solution. Its robust performance meets the demands of virtualization, data centers, AI Big Data storage, cloud-based applications, and 3D rendering workstations, addressing the need for low-latency and high-load multitasking applications. The 24-bay TDS-h2489FU R2 comes with sixteen 2.5-inch U.2 PCIe NVMe slots and eight 2.5-inch U.2 PCIe NVMe / SATA 6Gbps slots, along with four PCIe Gen 4 expansion slots for quickly upgrading to 25GbE / 100GbE networking and PB-level storage, supporting high-speed data access and data growth. Dual redundant power supplies minimize the risk of unexpected hardware failure, ensuring stable system operation.






Scalable ECC RDIMM memory up to 1TB
Equipped with error-correcting DDR4 ECC RDIMM memory, expandable up to 1TB, boosting multitasking performance.
25GbE as standard and upgradable to 100GbE
Enable Port Trunking and connect to a network switch to expand bandwidth for more devices and workstations.
High expandability with PCIe Gen 4
Has four PCIe Gen 4 slots, allowing installing high-speed network cards (10/25/100GbE), M.2 SSD expansion cards, Fibre Channel cards, and storage expansion cards.
Petabyte-scale storage
Flexibly connect QNAP PCIe JBOD or SAS JBOD for higher capacity, exceptional performance, and flexible expandability.
M.2 SSD caching
Two M.2 PCIe NVMe / SATA slots for cache acceleration or high-speed storage pools, enhancing performance and data access speed.
Immutability
Uses the ZFS-based QuTS hero operating system, which ensures high data integrity with immutable storage, snapshot protection, data deduplication, and SSD optimization.
Unmatched on-demand performance, seamlessly powering critical applications.
Dual-CPU performance with Intel® Xeon® Silver 4300 Series processors
-
6 x 25GbE iSCSI, Random IOPS (4K), Compression On, Dedupe Off
Read IOPSWrite IOPS -
6 x 25GbE SMB, Sequential Throughput (1MB), Compression On, Dedupe Off
Read MB/sWrite MB/s
6 x 25GbE iSCSI, Random IOPS (4K), Compression On, Dedupe Off |
Read
1,089,259
IOPS
|
Write
540,515
IOPS
|
---|---|---|
6 x 25GbE SMB, Sequential Throughput (1MB), Compression On, Dedupe Off |
Read
15,371
MB/s
|
Write
17,198
MB/s
|
Tested in QNAP Labs. Figures may vary by environment.
Test Environment:
NAS: TDS-h2489FU-R2-4314-128GB with RAM upgrade to 192GB, with QXG-25G2SF-CX6*3
OS:QuTS hero h5.1.7.2757 Build 20240507
Volume Type: Samsung PM 9A3 960GB PCIe Gen4x4 x24 (RAID 50)
Client PC: 5* Client PC simultaneously read and write 512GB file
Intel Core™ i7-7700 4.20 GHz CPU, 32GB DDR4 RAM, QXG-25G2SF-CX4, Windows® Server 2019, and Intel Core™ i3-8100 3.60 GHz CPU, 4GB DDR4 RAM, QXG-25G2SF-CX4, Windows® Server 2016
Ultimate hardware design unleashes all-flash NVMe performance.
The TDS-h2489FU R2 features an advanced hardware design with exceptional expandability to maximize SSD performance. The swappable controller module simplifies management and hardware maintenance.
25GbE as standard, expandable to blazing-fast 100GbE.
Ultra-high networking maximizes all-flash performance! TDS-h2489FU R2 delivers high bandwidth to meet enterprise demands for large file access, backup/restore, and running multiple virtual machines.
More PCIe Gen 4 Slots. Endless Possibilities.
The TDS-h2489FU R2 has four PCIe Gen 4 slots, which have twice the bandwidth of PCIe Gen 3, enabling seamless expansion of NAS functionality to support diverse applications.
Flexible PB-level storage expansion
With ever-growing data, the TDS-h2489FU R2 supports connecting up to ten PCIe JBOD units TL-R2400PES-RP, adding additional 240 drives; or sixteen SAS JBOD units TL-R1620Sep-RP, adding additional 256 drives, offering PB-scale storage capacity.
Learn More: Learn more compatible expansion units, Explore QNAP Petabyte-scale storage solution
Boost application performance with M.2 PCIe NVMe / SATA dual slots
The TDS-h2489FU R2 has two built-in M.2 slots, supporting both M.2 2280 NVMe PCIe Gen 3 and SATA 6 Gb/s interfaces, enabling flexible SSD configuration to maximize NAS performance potential.
QuTS hero operating system
Designed for enterprises, the QuTS hero operating system adopts the highly reliable ZFS file system to provide utmost data integrity and stability for mission-critical storage. QuTS hero further optimizes SSD performance and endurance to meet businesses’ stringent demands for performance and reliability. Explore the QuTS hero operating system Check out QuTS hero’s latest features
High availability (HA) and failover with dual-NAS architecture
Avoid unplanned downtime and data loss. Dive into details
Multi-level security strategy for enterprises
Bolster business data security with resilience from all aspects
All-in-one backup solution
The TDS-h2489FU R2 supports various apps that cover all your backup needs. See all
Run VMs and Containers
With no additional fees, you can run multiple VMs of different OS on TDS-h2489FU R2. This allows you to deploy multi-tenant environments and applications to increase management efficiency and save hardware costs.
Trusted storage for virtualization
Build an affordable Fibre Channel SAN environment
Common Fibre Channel Storage Area Networks (SAN) devices are often costly. By installing QNAP dual-port 16Gb/32Gb Fibre Channel expansion cards in the TDS-h2489FU R2, you have more budget-friendly options to add a NAS to a SAN environment. You can set a Fibre Channel Target using the iSCSI & Fibre Channel app. Moreover, the LUN Masking and Port Binding features provide an additional layer of data security.
Learn More: QNAP NAS supports Fibre Channel SAN, QNAP Fibre Channel cards

Switch to QTS operating system
for choosing various cache modes
5-year warranty as standard
The TDS-h2489FU R2 is backed by a 5-year warranty at no extra cost – providing your business organization with greater peace of mind.
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