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.
Specification
| CPU | 2 x Intel® Xeon® Silver 4309Y 8-core/16-thread processor, up to 3.6 GHz |
| CPU Architecture | 64-bit x86 |
| Encryption Engine | (AES-NI) |
| System Memory | 64 GB RDIMM DDR4 ECC (8 x 8 GB) |
| Maximum Memory | 1 TB (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)
The system is shipped without SSD. |
| Drive Compatibility | 2.5-inch bays: 2.5-inch SATA solid state drives (#17-24) 2.5-inch U.2 NVMe PCIe Gen4 x4 solid state drives |
| Hot-swappable | (Not supported M.2 SSD) |
| M.2 Slot | 2 Slot 1: M.2 2280 NVMe PCIe Gen 3 x4 or SATA 6Gb/s Slot 2: M.2 2280 NVMe PCIe Gen 3 x2 or SATA 6Gb/s Compatible with NVMe SSD PCIe Gen 3 and above. Please refer to for compatibility. |
| SSD Cache Acceleration Support |
|
| SR-IOV |
|
| 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 |
|
| PCIe Slot | 4 Slot 1: PCIe Gen4 x16 or Gen4 x8* Slot 2: PCIe Gen4 x8 Slot 3: PCIe Gen4 x16 or Gen4 x8* Slot 4: PCIe Gen4 x8 *Slot 4 is preinstalled with a 25GbE network adapter. |
| USB 3.2 Gen 1 port | 4 |
| Form Factor | Rackmount |
| LED Indicators | SSD, Status, Power, Fan, Temperaure, Power Module Status, Device Name, IP Address |
| Buttons | Power, Reset, OLED |
| Dimensions (HxWxD) | 88.3 × 446.2 × 713.2 mm |
| Weight (Net) | 22.77 kg |
| Weight (Gross) | 27.55 kg |
| 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: 1200W@200-240Vac 1000W@100-127Vac |
| Power Consumption: Operating Mode, Typical | 467.59 W
Tested with drives fully populated. |
| Fan | 6 x 60mm, 12VDC |
| System Warning | Buzzer |
| Standard Warranty | 5 |
| Max. Number of Concurrent Connections (CIFS) - with Max. Memory | 10,000 |