Description
The QNAP TS-855X is a tower NAS with an eight-core Intel Atom C5125 processor and 8 GB of DDR4 memory, designed to centralise network storage. Its chassis, in black and weighing 8.5 kg, measures 292.9 x 231.9 x 319.8 mm (width x height x depth). It offers eight bays compatible with 2.5 and 3.5 inch drives, both HDD and SSD, with Serial ATA II and Serial ATA III interface and hot-swap trays to change disks without shutting down the device. It also includes two M.2 slots (M and B) to expand capacity with solid-state memory. The QNAP QTS system manages RAID levels 0, 1, 5, 6, 10, 50 and 60, with online capacity expansion and migration, array rebuilding and disk roaming. It recognises the FAT32, HFS+, NTFS, exFAT, ext3 and ext4 file systems to integrate into diverse environments.
Specifications
Storage
- Storage drive capacity: 0 GB
- Supported storage drive interfaces: Serial ATA II, Serial ATA III
- Storage drive sizes supported: 2.5, 3.5"
- Number of M.2 (M & B) slots: 2
- RAID support: Yes
- RAID levels: 0, 1, 5, 6, 10, 50, 60
- Online RAID migration: Yes
- Online RAID expansion: Yes
- RAID rebuild: Yes
- Hot-swap drive bays: Yes
- Supported file systems: FAT32, HFS+, NTFS, exFAT, ext3, ext4
- Storage drives installed: No
- Total installed storage capacity: 0 TB
- Number of storage drives supported: 8
- Installed storage drive type: No
- Supported storage drive types: HDD & SSD
- Disk roaming: Yes
Processor
- Processor manufacturer: Intel
- Processor family: Intel Atom®
- Processor model: C5125
- Processor frequency: 2.8 GHz
- Processor cores: 8
Memory
- Internal memory: 8 GB
- Internal memory type: DDR4
- Maximum RAM supported: 128 GB
- Memory slots: 4
- Memory form factor: UDIMM
- ECC: Yes
- Flash memory: 5000 MB
Network
- Ethernet LAN: Yes
- Ethernet LAN data rates: 10, 100, 1000, 2500, 10000 Mbit/s
- Ethernet LAN data rate supported (max): 10000 Mbit/s
- DHCP server: Yes
- Jumbo frames support: Yes
- iSCSI support: Yes
- Wake-on-LAN ready: Yes
- Supported network protocols: IPv4, IPv6
- Dynamic DNS (DDNS): Yes
Ports & interfaces
- USB port: Yes
- USB 2.0 ports quantity: 1
- USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity: 3
- Ethernet LAN (RJ-45) ports: 3
- Concurrent connections: 700
- PCI Express x4 (Gen 3.x) slots: 2
Design
- Chassis type: Tower
- Cooling type: Active
- Product colour: Black
- Number of fans: 3 fan(s)
- Fan diameter: 8 cm
- Fan diameter 2: 9 cm
- LED indicators: HDD, LAN, Power, SSD, Status, USB
- Cable lock slot: Yes
- Cable lock slot type: Kensington
Performance
- Type: SAN
- Device class: Home & Home Office
- Backup function: Yes
- Backup features: USB drive, iSCSI LUN
- Buzzer: Yes
- Multilingual support: Yes
- Snapshot: Yes
- Management protocols: SNMP V2, V3
- Security algorithms: 256-bit AES, FIPS 140-2, HTTPS, SSH
- Access Control List (ACL): Yes
- Reset button: Yes
- On/off switch: Yes
- Built-in FTP server: Yes
- Browser supported: Apple Safari, Google Chrome, Microsoft Edge, Mozilla Firefox
- System log: Yes
- Hot spare: Yes
- S.M.A.R.T. support: Yes
- Share folder: CIFS/SMB
- USB copy function: Yes
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, W
- Linux operating systems supported: CentOS 7.0, SuSE Linux 12.0, SuSE Linux 12.3, SuSE Linux 15, Ubuntu 14.04
- 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, Ma
- 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
Power
- Power supply location: Built-in
- Power supply unit (PSU) capacity: 250 W
- Number of power supply units: 1
- Power consumption (typical): 75.79 W
- AC input voltage: 100 - 240 V
Weight & dimensions
- Width: 292.9 mm
- Depth: 319.8 mm
- Height: 231.9 mm
- Weight: 8.5 kg
- Package weight: 10.1 kg
Packaging content
- Cables included: AC, LAN (RJ-45)
- Power cables quantity: 2
- Quick installation guide: Yes
- Number of screws: 56
Operational conditions
- Operating temperature (T-T): 0 - 40 °C
- Operating relative humidity (H-H): 5 - 95%
- Storage temperature (T-T): -20 - 70 °C
Other features
- Fibre Channel: Yes
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