Key Specifications
Choose one or multiple features to search for items that have the same specifications.| Processor | |
| Processor model | C5125 |
| Processor manufacturer | Intel |
| Processor family | Intel Atom |
| Processor cores | 8 |
| Processor frequency | 2.8 GHz |
| Memory | |
| Internal memory type | DDR4 |
| Flash memory | 5000 MB |
| Memory slots | 4 |
| ECC | ![]() |
| Memory form factor | UDIMM |
| Maximum RAM supported | 128 GB |
| Internal memory | 8 GB |
| Ports & interfaces | |
| USB 2.0 ports quantity | 1 |
| Ethernet LAN (RJ-45) ports | 3 |
| Concurrent connections | 700 |
| PCI Express x4 (Gen 3.x) slots | 2 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 3 |
| USB port | ![]() |
| Weight & dimensions | |
| Weight | 8.5 kg |
| Package weight | 10.1 kg |
| Height | 224.8 mm |
| Width | 292.7 mm |
| Depth | 319.8 mm |
| Package depth | 338 mm |
| Package height | 426 mm |
| Package width | 396 mm |
| Energy management | |
| Power consumption (typical) | 75.79 W |
| Number of power supply units | 1 |
| AC input voltage | 100 - 240 V |
| Power supply location | Built-in |
| Power supply unit (PSU) capacity | 250 W |
| Operational conditions | |
| Operating relative humidity (H-H) | 5 - 95% |
| Storage temperature (T-T) | -20 - 70 °C |
| Operating temperature (T-T) | 0 - 40 °C |
| Networking | |
| Supported network protocols | IPv4, IPv6 |
| Ethernet LAN | ![]() |
| Wake-on-LAN ready | ![]() |
| Jumbo frames support | ![]() |
| DHCP server | ![]() |
| Ethernet LAN data rates | 10,100,1000,2500,10000 Mbit/s |
| iSCSI support | ![]() |
| Dynamic DNS (DDNS) | ![]() |
| Ethernet LAN data rate supported (max) | 10000 Mbit/s |
| Storage | |
| RAID levels | 0, 1, 5, 6, 10, 50, 60 |
| Supported file systems | FAT32, HFS+, NTFS, exFAT, ext3, ext4 |
| RAID support | ![]() |
| Storage drive interface | Serial ATA II, Serial ATA III |
| Number of storage drives supported | 8 |
| Storage drive sizes supported | 2.5,3.5" |
| Storage drives installed | ![]() |
| Number of storage drives installed | 0 |
| Installed storage drive type | ![]() |
| Supported storage drive types | HDD & SSD |
| Hot-swap drive bays | ![]() |
| Storage drive capacity | 0 GB |
| Supported storage drive interfaces | Serial ATA II, Serial ATA III |
| Online RAID migration | ![]() |
| Online RAID expansion | ![]() |
| Disk roaming | ![]() |
| Number of M.2 (M & B) slots | 2 |
| RAID rebuild | ![]() |
| Total installed storage capacity | 0 TB |
| Operating system/software | |
| Operating system installed | QNAP QTS |
| Operating system version | 5.0.1 |
| Windows operating systems supported | Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 IoT Enterprise, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 11, Windows 11 Enterprise, Windows 11 Enterprise x64, Windows 11 Home, Windows 11 Pro, Windows 11 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64 |
| Mac operating systems supported | Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.15.3 Catalina, Mac OS X 11.0 Big Sur, Mac OS X 12.0 Monterey, Mac OS X 13.0 Ventura |
| Linux operating systems supported | CentOS 7.0, SuSE Linux 12.0, SuSE Linux 12.3, SuSE Linux 15, Ubuntu 14.04 |
| Server operating systems supported | Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019 |
| Other operating systems supported | IBM AIX 7.1, IBM AIX 7.2, Solaris 10, Solaris 11 |
| Packaging content | |
| Cables included | AC, LAN (RJ-45) |
| Package type | Box |
| Quick installation guide | ![]() |
| Number of screws | 56 |
| Power cables quantity | 2 |
| Other features | |
| Fibre Channel | ![]() |
| Warranty period | 3 year(s) |
| Design | |
| Chassis type | Tower |
| Cable lock slot | ![]() |
| LED indicators | HDD, LAN, Power, SSD, Status, USB |
| Product colour | Black |
| Number of fans | 3 fan(s) |
| Cooling type | Active |
| Fan diameter | 8 cm |
| Cable lock slot type | Kensington |
| Fan diameter 2 | 9 cm |
| Performance | |
| Type | SAN |
| Security algorithms | 256-bit AES, FIPS 140-2, HTTPS, SSH |
| Management protocols | SNMP V2, V3 |
| Browser supported | Apple Safari, Google Chrome, Microsoft Edge, Mozilla Firefox |
| Buzzer | ![]() |
| Snapshot | ![]() |
| Web-based management | ![]() |
| Access Control List (ACL) | ![]() |
| Reset button | ![]() |
| Multilingual support | ![]() |
| On/off switch | ![]() |
| S.M.A.R.T. support | ![]() |
| Device class | Home & Home Office |
| Backup function | ![]() |
| Backup features | USB drive, iSCSI LUN |
| Built-in FTP server | ![]() |
| System log | ![]() |
| Hot spare | ![]() |
| Share folder | CIFS/SMB |
| USB copy function | ![]() |
| EAN | 4711103084007 |
| Warranty | 3 years |
The QNAP TS-855X-8G 8-bay NAS is a desktop storage device for home and small office environments. Its eight internal bays accommodate 2.5-inch and 3.5-inch SATA II or SATA III drives. The system is powered by an Intel Atom C5125 8-core processor running at 2.8 GHz, paired with 8 GB of DDR4 ECC memory. It supports up to 128 GB of RAM across four UDIMM slots. Network connectivity includes three RJ45 Ethernet ports capable of speeds up to 10 Gbit/s.
Three internal fans manage thermal cooling during operation. The unit includes three USB 3.2 Gen 1 Type-A ports and one USB 2.0 port for external devices. It supports RAID levels 0, 1, 5, 6, 10, 50, and 60. Hot-swappable drive bays allow for maintenance or replacement while the system is running. The QTS 5.0.1 operating system supports iSCSI LUN backups and snapshots. Security features include 256-bit AES encryption and access control lists. The system is compatible with various file systems, including NTFS, ext4, and HFS+.
Key Features:- Two M.2 slots for NVMe SSD cache acceleration or dedicated high-speed storage volumes.
- Wake-on-LAN support for remote power management and system activation.
- Built-in 250 W power supply, eliminating the need for an external adapter.
- Support for 700 concurrent connections for high-traffic environments.
- Integrated Kensington security slot for physical anchoring.
- Disk roaming capability allows drives to be moved between compatible NAS units without data loss.
- Online RAID migration for updating storage configurations without service interruption.
Estimated delivery: 21.09 - 22.09
Today: 10:00 - 18:00
Estimated delivery: 21.09 - 22.09
Today: 09:00 - 17:00
Estimated delivery: 21.09 - 22.09
Today: 10:00 - 17:00
Estimated delivery: 21.09 - 22.09
Today: 10:00 - 18:00
Estimated delivery: 21.09 - 22.09
Today: 10:00 - 17:00
Estimated delivery time: 21.09 - 22.09
Estimated delivery time: 21.09
Estimated delivery time: 22.09
Estimated delivery time: 22.09
Estimated delivery time: 22.09
Estimated delivery time: 21.09 - 22.09
Estimated delivery time: 21.09 - 22.09
Estimated delivery time: 22.09
- manual pdf (English)
- leaflet (English)


