QNAP TDS-h2489FU R2 is an all-flash NAS with Xeon CPUs, U.2 NVMe, and ZFS, designed for virtualization and data-heavy environments.
QNAP has released its updated flagship enterprise NAS: the TDS-h2489FU R2, a 2U rackmount system designed for demanding data workloads, real-time applications, and environments requiring performance and scalability. This all-flash model builds on the previous generation with dual Intel Xeon processors, complete U.2 NVMe support, and expanded PCIe options, targeting enterprise needs in virtualization, HPC, AI, and post-production environments.
QNAP TDS-h2489FU R2 Features and Components
At the heart of the TDS-h2489FU R2 are dual Intel Xeon Silver 4300-series processors, with configurations ranging from 16 to 32 cores. RAM support scales up to 1TB of DDR4 ECC RDIMM, ensuring it can handle concurrent virtual machines, high-speed data analytics, or parallel workflows without choking. The unit integrates 24 front-facing U.2 drive bays, 16 of which are NVMe-only and the remaining eight are compatible with NVMe or SATA. QNAP claims the unit can push up to 1 million IOPS for 4K random reads, especially useful for virtualized infrastructure and data-intensive use cases.
Compared to the earlier version, this revision expands hardware flexibility. It now includes four PCIe Gen 4 slots, allowing users to add high-speed network cards (25GbE or even 100GbE), Fibre Channel adapters, or additional storage interface cards. Moreover, it includes dual 25GbE SFP28 ports (via a pre-installed card) alongside four 2.5GbE RJ45 ports, giving enterprises a strong base for high-bandwidth operations. The 25GbE ports support iSER (iSCSI Extensions for RDMA) and SR-IOV, allowing faster virtualized storage transfers with lower CPU usage.
For larger deployments, the system supports massive storage expansion. With the right JBOD attachments, users can scale to over 240 additional drives via PCIe JBOD (TL-R2400PES-RP) or 256 drives through SAS JBOD (TL-R1620Sep-RP). Two internal M.2 NVMe slots are for cache or system acceleration, further improving data throughput. As expected in this class, the TDS-h2489FU R2 includes dual redundant power supplies to safeguard uptime and minimize the risk of failure in critical environments.
QNAP QNAP TDS-h2489FU R2 ZFS-Based QuTS Hero
The NAS runs QNAP’s QuTS hero OS, which is built around the ZFS file system. This adds data integrity features like copy-on-write, snapshots, and inline data deduplication/compression. It also allows for advanced SSD optimization, critical for maintaining performance and endurance in all-flash configurations.
QNAP QNAP TDS-h2489FU R2 Available Models and Specifications
QNAP offers several configurations of the TDS-h2489FU R2, differing mainly in CPU model and pre-installed memory.
Here’s a full list of its specifications:
| Feature | Specification |
| CPUs |
|
| Available models |
|
| CPU Architecture | 64-bit x86 |
| Encryption Engine | (AES-NI) |
| Maximum Memory | 1TB DDR4 ECC (32 x 32 GB) |
| Memory Slot | 32 x RDIMM DDR4 ECC (16 x slots per socket) |
| Flash Memory | 5GB (Dual boot OS protection) |
| Drive Bay | 24 (16 x 2.5-inch U.2 PCIe NVMe + 8 x 2.5-inch U.2 PCIe NVMe/SATA 6Gbps) Note: The system is shipped without SSD. |
| Drive Compatibility |
|
| Hot-swappable | (Not supported M.2 SSD) |
| M.2 Slot |
Compatible with NVMe SSD PCIe Gen 3 and above. |
| SSD Cache Acceleration Support | Yes |
| SR-IOV | Yes |
| 2.5 Gigabit Ethernet Port (2.5G/1G/100M) | 4 (2.5G/1G/100M/10M) |
| 25 Gigabit Ethernet Port | 2 x 25GbE SFP28 SmartNIC port |
| Wake on LAN (WOL) | Only the 2.5GbE port |
| Jumbo Frame | Yes |
| PCIe Slot |
|
| USB 3.2 Gen 1 port | 4 |
| Form Factor | Rackmount |
| LED Indicators | SSD, Status, Power, Fan, Temperature, Power Module Status, Device Name, IP Address |
| Buttons | Power, Reset, OLED |
| Dimensions (HxWxD) | 3.48 × 17.57 × 28.08 inch |
| Weight (Net) | 50.2 lbs |
| Weight (Gross) | 60.74 lbs |
| Operating Temperature | 0 – 35°C (32°F – 95°F) |
| Storage Temperature | -20 – 70°C (-4°F – 158°F) |
| Relative Humidity | 5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F) |
| Power Supply Unit | 1200W PSU(x2), 100-240Vac Max Wattage:
|
| Power Consumption: Operating Mode, Typical | 467.59 W |
| Fan | 6 x 60mm, 12VDC |
| System Warning | Buzzer |
| Standard Warranty | 5 |
| Max. Number of Concurrent Connections (CIFS) – with Max. Memory | 10,000 |
QNAP QNAP TDS-h2489FU R2 Availability and Pricing
The product is available now through QNAP’s standard distribution channels. Here’s the official pricing for the QNAP TDS-h2489FU R2 configurations currently available in the U.S. market:
- $10,999 – TDS-h2489FU-4309Y-64G-US
- $13,499 – TDS-h2489FU-4314-128G-US
- $15,499 – TDS-h2489FU-4314-256G-US
- $19,999 – TDS-h2489FU-4314-512G-US
- $29,999 – TDS-h2489FU-4314-1TB-US
QNAP QNAP TDS-h2489FU R2 Product Page
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