Qnap Tower
TS-855X
(6 Bay)

Enhanced Performance with TS-855X

The TS-855X is a high-performance 8-core 10GbE NAS for deploying hybrid-infrastructure storage and high-speed virtualization applications. It is a cost-effective 8-core 2.5GbE NAS that supports M.2 SATA/NVMe SSD caching, PCIe expansion, and 4K HDMI™ display. Its Ideal  for businesses and organizations seeking a scalable data solution.

Key Specifications:

  • Processor: Intel® Atom® C5125 8-core processor
  • Memory: 8GB DDR4 RAM (upgradable to 128GB)
  • Storage: 8-bay SATA 6Gb/s (supports HDDs and SSDs)
  • Network: 1x 10GbE (2.5G/1G/100M) port, 2x 2.5GbE (2.5G/1G/100M) port
  • Operating System: QTS (standard) or QuTS hero (ZFS-based)
SKU: TS-855X Categories: ,

Product Description

TS-855X

CPU Intel ® Atom® C5125 8-core processor, 2.8GHz
CPU Architecture 64-bit x86
Floating Point Unit
Encryption Engine  (AES-NI)
System Memory 8 GB non-ECC 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 6 x 3.5-inch + 2 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 drives2.5-inch bays:
2.5-inch SATA solid state drives
Hot-swappable  

The following are not hot-swappable: M.2 SSDs, SSD cache drives, SSDs using PCIe expansion slots.
M.2 Slot 2 x M.2 2280 PCIe Gen 3 x4 slots

The M.2 SSD is not included as standard.
SSD Cache Acceleration Support
SR-IOV
2.5 Gigabit Ethernet Port (2.5G/1G/100M) 2 (2.5G/1G/100M/10M)
10 Gigabit Ethernet Port 1 x 10GBASE-T
25 Gigabit Ethernet Port Optional via PCIe expansion card
Wake on LAN (WOL)  

Only the 2.5GbE port
Jumbo Frame
PCIe Slot 2
Slot 1: PCIe Gen 3 x4
Slot 2: PCIe Gen 3 x4

Card dimensions for PCIe slot 1:260 x 111.15 x 18.76 mm / 10.25 x 4.38 x 0.74 inches
Card dimensions for PCIe slot 2:150 x 68.9 x 18.76 mm / 5.90 x 2.71 x 0.74 inches.
USB 2.0 port 1
USB 3.2 Gen 1 port 3
Form Factor Tower
LED Indicators Power/Status, LAN, USB, HDD1-6, SSD 1-2, M.2 SSD 1-2
Buttons Power, Reset, USB Auto Copy
Dimensions (HxWxD) 225 × 292.9 × 319.8 mm

Dimensions do not include foot pad (foot pad may be up to 30mm / 1.18 inches high depending on model)
Weight (Net) 10.04 kg
Weight (Gross) 10.04 kg
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 250W PSU, 100~240V
Power Consumption: Operating Mode, Typical 86.96 W

Tested with drives fully populated.
Fan System fan: 2 x 80mm, 12VDC
CPU fan: 1 x 90mm, 12VDC
Other Interfaces Kensington security slot
System Warning Buzzer
Kensington Security Slot
Max. Number of Concurrent Connections (CIFS) – with Max. Memory 2500