Home Enterprise QNAP TS-1655 High-Capacity, 2.5GbE, Hybrid-Storage NAS Announced

QNAP TS-1655 High-Capacity, 2.5GbE, Hybrid-Storage NAS Announced

by Lyle Smith
QNAP TS-1655

QNAP has announced the TS-1655, a tower-form factor NAS that can hold twelve 3.5-inch hard drives and four 2.5-inch solid-state drives. Highlighted by its hybrid storage architecture, the TS-1655 features 8-core computing power, 2.5GbE network connectivity, and PCIe expansion. It is intended for use in business environments for file sharing, collaboration, backup, disaster recovery, and virtualization.

QNAP has announced the TS-1655, a tower-form factor NAS that can hold twelve 3.5-inch hard drives and four 2.5-inch solid-state drives. Highlighted by its hybrid storage architecture, the TS-1655 features 8-core computing power, 2.5GbE network connectivity, and PCIe expansion. It is intended for use in business environments for file sharing, collaboration, backup, disaster recovery, and virtualization.

QNAP TS-1655 Tower NAS

The TS-1655 is powered by an Intel Atom C5125 8-core 2.8 GHz processor with Intel QuickAssist Technology (QAT) for improved performance and efficiency. The new QNAP NAS also comes with four UDIMM DDR4 slots, which can be upgraded to a maximum of 128GB, allowing for higher workloads and improved error-correcting code memory support to enhance performance and reliability in rugged enterprise IT environments. Moreover, with the option to install a dual-port 25GbE network card, the TS-1655 delivers can potentially deliver sequential read and write speeds of up to 3,499MB/s and 2,465 MB/s, respectively.

For its standard network connectivity, the TS-1655 has two 2.5GbE RJ45 ports that support port trunking for load balancing and fault tolerance. These ports are ideal for organizations with bandwidth-intensive applications, including virtualization, large file transfers, high-speed backup/restoration, and real-time applications. Additionally, the TS-1655 supports SR-IOV and features three PCIe slots for expanding the NAS capabilities with various expansion cards such as 5/10/25GbE network cards, QM2 cards for adding M.2 SSDs or 2.5GbE/10GbE network ports, Fibre Channel cards for building SAN storage, and storage expansion cards for connecting to QNAP storage expansion enclosures.

The TS-1655 is built as a reliable and multi-functional NAS designed to meet the storage needs of businesses, as it comes with advanced security features, backup capabilities, file-sharing functionality, and central management. The TS-1655 further ensures data protection via the use of Snapshots, which allows for instant restoration of data. This makes for effective protection against ransomware.

In addition, the TS-1655 is equipped with several other business-ready capabilities, including:

  • hosting virtual machines and containers
  • simplifying local
  • remote and cloud backup tasks
  • facilitating VMware/Hyper-V VM backup
  • deploying a cloud storage gateway
  • creating S3-compatible object storage on the NAS

QNAP TS-1655 NAS Detailed Specifications

CPU Intel Atom C5125 8-core processor, 2.8GHz
CPU Architecture 64-bit x86
Floating Point Unit Yes
Encryption Engine Yes
System Memory 8 GB UDIMM DDR4 (1 x 8 GB)
Maximum Memory 128 GB (4 x 32 GB)
Memory Slot 4 x U-DIMM DDR4
Support ECC memory
Flash Memory 5GB (Dual boot OS protection)
Drive Bay 12 x 3.5-inch + 4 x 2.5-inch SATA 6Gb/s, 3Gb/s
Drive Compatibility 3.5-inch bays:

  • 3.5-inch SATA hard disk drives
  • 2.5-inch SATA solid-state drives

2.5-inch bays:

  • 2.5-inch SATA solid-state drives
Hot-swappable The following are not hot-swappable: M.2 SSDs, SSD cache drives, and SSDs using PCIe expansion slots.
M.2 Slot 2 x M.2 2280 PCIe Gen3 x2 slots

The M.2 SSD is not included as standard.

SSD Cache Acceleration Support Yes
SR-IOV Yes
2.5 Gigabit Ethernet Port (2.5G/1G/100M) 2 (2.5G/1G/100M/10M)
10 Gigabit Ethernet Port
  • Optional via PCIe expansion card
  • Optional via PCIe expansion card
25 Gigabit Ethernet Port Optional via PCIe expansion card
Wake on LAN (WOL) Only the 2.5GbE port
Jumbo Frame Yes
PCIe Slot 3 available slots:

  • Slot 1: PCIe Gen 3 x4
  • Slot 2: PCIe Gen 3 x4
  • Slot 3: PCIe Gen 3 x4
  • Card dimensions for PCIe slot 1:260 x 111.15 x 37.52 mm / 10.25 x 4.38 x 1.48 inches.
  • Card dimensions for PCIe slot 2:150 x 68.9 x 18.76 mm / 5.90 x 2.71 x 0.74 inches.
  • Card dimensions for PCIe slot 3:150 x 68.9 x 18.76 mm / 5.90 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 Tower
LED Indicators Power/Status, LAN, USB, HDD1-12, SSD 1-4, M.2 SSD 1-2
Buttons Power, Reset, USB Auto Copy
Dimensions (HxWxD) 11.59 × 14.56 × 12.59 inch
Weight (Net) 29.01 lbs
Weight (Gross) 36.77 lbs
Operating Temperature 0 – 40 °C (32°F – 104°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 550W, 100-240V

1 x 8-pin PCI-e cable + 1 x 8 (6+2)-pin PCI-e cable

Power Consumption: HDD Sleep Mode 94.957 W
Power Consumption: Operating Mode, Typical 104.65 W

Tested fully populated with 1TB hard drives and 120GB solid-state drives.

Fan System fan: 3 x 92mm, 12VDC
CPU fan: 2 x 97mm, 12VDC
Other Interfaces Kensington security slot
System Warning Buzzer
Kensington Security Slot Yes
Standard Warranty 3
Max. Number of Concurrent Connections (CIFS) – with Max. Memory 700

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