QNAP TDS-h2489FU-4314-256G 24-Bay, 2U Rack-mountable NAS with 3.40 GHz Intel Xeon CPU and 256GB RAM

$34,723.00 inc. GST

Dual-processor (2 x 8 Cores & 2 x 16 Cores) NVMe all-flash ZFS storage built for latency-sensitive file servers, virtualized workloads, and 4K/8K streams
(Supports QuTS hero or QTS operating system)

Available on back-order

SKU: TDS-h2489FU-4314-256G Categories: , , , , , , , ,


QNAP TDS-h2489FU-4314-256G 24-Bay, 2U Rack-mountable NAS

Featuring dual Intel® Xeon® Silver 4300 processors and 24 U.2 NVMe Gen 4 x4 SSD bays, the QNAP’s flagship NVMe all-flash storage QNAP TDS-h2489FU-4314-256G delivers high random read/write IOPS for tackling I/O-intensive and latency-sensitive applications. The ZFS-based QuTS hero operating system supports inline data deduplication and compression for reducing I/O and SSD storage consumption, which significantly extends SSD lifespan with a higher price-performance ratio for all-flash storage arrays. Coupled with near-unlimited snapshots, real-time SnapSync, and QSAL (QNAP SSD Antiwear Leveling), the TDS-h2489FU meets your requirements for modern data centers, virtualization, and mission-critical backup/restore tasks.

  • Optimized SSD performance and lifespan

    Inline data deduplication and compression, Pool Over-provisioning, and TRIM maximize SSD performance and lifespan.

  • 25GbE & 2.5GbE connectivity

    Dual 25GbE SFP28 and quad 2.5GbE RJ45 high-speed connectivity accelerates virtualization, intensive file access, and large backup/restoration tasks.

  • High-speed PCIe Gen 4 slots

    Allows for installing 10/25/40/100GbE adapters, QM2 cards, or Fibre Channel cards to increase application performance.

  • Virtualization applications

    Supports virtualization storage and hosting virtual machines and containerized apps.

  • Cloud storage gateway

    Realizes hybrid cloud applications by working with the cache space reserved on NAS to ensure low-latency data access to the cloud.

  • Flexible storage expansion

    Scalable design to grow with your business by connecting SAS 12Gb/s expansion enclosures for up to petabyte-scale storage capacity.

Multiplied computing power with dual Intel® Xeon® Scalable processors and 8-channel DDR4 ECC memory

The TDS-h2489FU is powered by dual Intel® Xeon® Silver 4309Y 8-cores 2.8 GHz (up to 3.6 GHz) or Intel® Xeon® Silver 4314 16-cores 2.4 GHz (up to 3.4 GHz) processors, which are based on the new 3rd Gen Intel® Xeon® Scalable processors architecture that increases core performance, memory, I/O bandwidth, and features built-in workload and service acceleration. With 8-channel modules and 32 Long-DIMM slots, the TDS-h2489FU’s DDR4 memory can be upgraded up to 1 TB for fulfilling memory-intensive applications. Demonstrating immense computing power and multi-tasking capabilities, the TDS-h2489FU is outstanding for uncompromising performance demands in HPC, virtualization, file servers, and multimedia applications.

U.2 NVMe PCIe Gen 4 x4 – faster speed, optimal I/O, and lower latency

The 2U rackmount QNAP TDS-h2489FU-4314-256G has 24 drive bays for U.2 NVMe PCIe Gen 4 x4 SSDs that supply up to 64 Gb/s bandwidth (compatible with PCIe Gen 3 SSDs) for the utmost application response times. Coupled with powerful ZFS data deduction and SSD optimization technologies, the TDS-h2489FU provides solid foundations for overcoming performance demands while also maximizing your SSD investments! Among the 24 drive bays, slots 17 to 24 support both high-performance U.2 NVMe PCIe Gen 4 x4 SSDs or economical SATA 6Gb/s SSDs.

Dual 25GbE connectivity optimizes data transfer and VMware virtualization with iSER

The TDS-h2489FU provides four 2.5GbE RJ45 ports and has a built-in QXG-25G2SF-CX6 dual-port 25GbE SFP28 SmartNIC with the NVIDIA® Mellanox ConnectX®-6 Lx SmartNIC controller that supports iSCSI Extensions for RDMA (iSER) to increase performance of data transfer between NAS and ESXi server and offload CPU workloads. With Port Trunking and Auto-Negotiation, the TDS-h2489FU empowers your organization with the bandwidth and reliability to allow thousands of endpoint users to smoothly access data stored on the NAS and also satisfy the most demanding applications (including data centers, virtualization, massive file transfer, high-speed backup/restoration, and multimedia transmission). The TDS-h2489FU is also ideally matched with QNAP’s managed and unmanaged 2.5GbE/10GbE switches to form high-speed, secure and scalable network environments without going over budget.

M.2 PCIe/SATA slots for SSD cache acceleration or enhanced AI image recognition

To attain optimal I/O and reduce latency, you can configure SSD caching by using either 2.5-inch SSDs or two M.2 2280 SSDs (NVMe PCIe Gen 3 or SATA 6 Gb/s, sold separately) in the TDS-h2489FU. You can implement durable data center SSDs (such as Intel® Optane™ SSDs) to enhance ZIL protection along with the QuTS hero Dedicated ZIL – SLOG. Extra M.2 SSD slots can also be added by installing QM2 PCIe cards. The M.2 PCIe slots also allow for installing a Coral M.2 Accelerator with Edge TPU, providing an affordable solution to leverage AI acceleration for faster image recognition in your NAS applications.

Additional information

Weight 28.8 kg
Dimensions 499 × 439 × 44 mm
HDD Bays


HDD type

2.5", SATA 6Gbps, U.2 NVMe

CPU Family

Intel Xeon Silver

CPU # of cores


CPU Frequency

3.40 GHz

System Memory Installed


System Memory Maximum

1024GB (1TB)

Network type

10GbE, 1GbE, 2.5GbE, 25GbE, 5GbE, SFP+

Network Connections in Total


USB 3.0 Ports



Rack 2U

Power Supply



2 years


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