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. For the SSD compatibility list, please visit
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. **Slot 1 provides the width of PCIe Gen4 x16 when Slot 2 is not in use, and provides the width of PCIe Gen4 x8 when Slot 2 is in use. **Slot 3 provides the width of PCIe Gen4 x16 when Slot 4 is not in use, and provides the width of PCIe Gen4 x8 when Slot 4 is in use. Card dimensions for PCIe slot 1：225 x 68.9 x 39.08 mm / 8.86 x 2.71 x 1.54 inches. Card dimensions for PCIe slot 2：225 x 68.9 x 18.76 mm / 8.86 x 2.71 x 0.74 inches. Card dimensions for PCIe slot 3：225 x 68.9 x 39.08 mm / 8.86 x 2.71 x 1.54 inches. Card dimensions for PCIe slot 4：225 x 68.9 x 18.76 mm / 8.86 x 2.71 x 0.74 inches. Wider cards can be installed if the next PCIe slot will not be used.
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