Key Specifications
Choose one or multiple features to search for items that have the same specifications.| Processor | |
| Processor model | C5125 |
| Number of processors installed | 1 |
| Processor manufacturer | Intel |
| Processor family | Intel Atom |
| Processor cores | 8 |
| Processor threads | 8 |
| Processor cache | 9 MB |
| Processor frequency | 2.8 GHz |
| Thermal Design Power (TDP) | 50 W |
| ECC supported by processor | ![]() |
| Memory | |
| Internal memory type | DDR4 |
| Flash memory | 5000 MB |
| Memory slots | 2 |
| Memory form factor | SO-DIMM |
| Maximum RAM supported | 64 GB |
| Internal memory | 8 GB |
| Ports & interfaces | |
| Ethernet LAN (RJ-45) ports | 2 |
| Fiber optic connector | MTP |
| PCI Express x4 (Gen 3.x) slots | 2 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
| USB port | ![]() |
| Weight & dimensions | |
| Weight | 7.61 kg |
| Package weight | 10.9 kg |
| Height | 88.6 mm |
| Width | 432 mm |
| Depth | 297.4 mm |
| Package depth | 210 mm |
| Package height | 592 mm |
| Package width | 530 mm |
| Energy management | |
| Power consumption (typical) | 79.113 W |
| Number of power supply units | 1 |
| Power consumption (sleep) | 49.799 W |
| AC input voltage | 100 - 240 V |
| Power supply location | Built-in |
| Fan voltage | 12 V |
| 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 Mbit/s |
| iSCSI support | ![]() |
| Dynamic DNS (DDNS) | ![]() |
| Storage | |
| RAID levels | 0, 1, 5, 10, 50, 60, JBOD |
| Supported file systems | FAT32, HFS+, NTFS, ZFS, exFAT, ext3, ext4 |
| RAID support | ![]() |
| Storage drive interface | Serial ATA III, Serial ATA II |
| 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 III, Serial ATA II |
| 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 | QuTS hero |
| Operating system version | h5.0.1 |
| Windows operating systems supported | Windows 10, Windows 11, Windows 7, Windows 8 |
| Mac operating systems supported | Mac OS X 10.10 Yosemite, Yes |
| Linux operating systems supported | CentOS 7.0, Ubuntu 14.04, Yes |
| 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, Solaris 10 |
| Packaging content | |
| Cables included | AC, LAN (RJ-45) |
| Package type | Box |
| Quick installation guide | ![]() |
| Number of screws | 56 |
| Power cables quantity | 1 |
| Other features | |
| Fibre Channel | ![]() |
| Warranty period | 3 year(s) |
| Design | |
| Chassis type | Rack (2U) |
| LED indicators | ![]() |
| Product colour | Black |
| Number of fans | 3 fan(s) |
| Cooling type | Active |
| Fan diameter | 6 cm |
| Performance | |
| Type | NAS |
| Security algorithms | AES, FIPS 140, HTTPS, SSH |
| Management protocols | SNMP V2, V3 |
| Browser supported | Apple Safari (latest version) Google Chrome (latest version) Microsoft Edge (latest version) Mozilla Firefox (latest version) |
| Buzzer | ![]() |
| Snapshot | ![]() |
| Access Control List (ACL) | ![]() |
| Reset button | ![]() |
| On/off switch | ![]() |
| S.M.A.R.T. support | ![]() |
| Device class | Small & Medium Business |
| Backup function | ![]() |
| Backup features | USB drive, iSCSI LUN |
| Built-in FTP server | ![]() |
| System log | ![]() |
| Hot spare | ![]() |
| Share folder | CIFS/SMB |
| USB copy function | ![]() |
| EAN | 4711103083376 |
| Warranty | 3 years |
The QNAP TS-855EU-8G is an 8-bay rackmount storage device designed for small-to-medium business environments. Its 2U short-depth chassis allows for installation in shallow rack cabinets where space is limited. An Intel Atom C5125 8-core processor running at 2.8 GHz handles centralized file sharing and virtualization workloads. The system includes 8 GB of DDR4 RAM, expandable to 64 GB via two memory slots. Eight hot-swappable drive bays support 2.5-inch and 3.5-inch SATA hard drives or solid-state drives. Two 2.5GbE RJ45 ports provide network connectivity with data rates of up to 2500 Mbit/s.
Running the QuTS hero h5.0.1 operating system, the unit uses a ZFS-based file system to ensure data integrity via snapshots. Users can configure storage across RAID levels 5, 10, 50, and 60, with support for online expansion. Active cooling is provided by three 60 mm fans, and the built-in 250 W power supply has a typical power consumption of 79.113 W. Data security includes hardware-accelerated encryption compliant with AES and FIPS 140 standards. The device is compatible with various operating systems, including Windows Server 2019 and Ubuntu 14.04. Integrated status LEDs provide visual feedback on system and drive activity.
Key Features:- Two M.2 slots allow for the installation of additional storage modules to serve as cache or high-speed pools.
- Four USB 3.2 Gen 1 Type-A ports allow for the connection of external data drives and peripheral devices.
- Integrated iSCSI LUN backup features enable point-in-time recovery for virtualised storage environments.
- Support for jumbo frames and IPv6 network protocols improves the handling of large data packets.
- SMART drive health monitoring provides diagnostic data to help identify potential hardware issues.
- DHCP server functionality and Wake-on-LAN support assist with automated network administration and remote power management.
- A dedicated reset button and system buzzer allow for manual hardware management and audible status alerts.
Estimated delivery: 07.09 - 08.09
Today: 10:00 - 18:00
Estimated delivery: 07.09 - 08.09
Today: 09:00 - 17:00
Estimated delivery: 07.09 - 08.09
Today: 10:00 - 17:00
Estimated delivery: 07.09 - 08.09
Today: 10:00 - 18:00
Estimated delivery: 07.09 - 08.09
Today: 10:00 - 17:00
Estimated delivery time: 07.09 - 08.09
Estimated delivery time: 07.09
Estimated delivery time: 08.09
Estimated delivery time: 08.09
Estimated delivery time: 08.09
Estimated delivery time: 07.09 - 08.09
Estimated delivery time: 07.09 - 08.09
Estimated delivery time: 08.09
- manual pdf (English)


