QNAP TS-855eU-8G NAS Server - 8-Bay 2U Rack, Intel Atom C5125 2.8GHz, 8GB DDR4, 2x2.5GbE, 2x M.2, Black
8-bay 2U QNAP NAS with Intel Atom C5125 2.8GHz, 8GB DDR4 (expandable to 64GB), 2x2.5GbE RJ-45, 2 M.2 slots, hot-swap bays, QuTS hero OS for SMB
Please Note
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Discontinued
This item was discontinued and currently is not available for order on our website. The item may become available soon. Please contact us if you need more information regarding the upcoming arrivals.
| NAS (Network Attached Storage) - RAID Levels | RAID 5 |
|---|---|
| NAS (Network Attached Storage) - LAN | 2x2.5GbE |
| NAS (Network Attached Storage) - M.2 Slots | 2 |
| NAS (Network Attached Storage) - USB | USB 3.0 |
| NAS (Network Attached Storage) - Hot-swap | Yes |
| Storage drive capacity | 0 GB |
| Supported storage drive interfaces | Serial ATA III, Serial ATA II |
| Storage drive sizes supported | 2.5, 3.5" |
| Number of M.2 (M & B) slots | 2 |
| RAID support | Yes |
| RAID levels | 0, 1, 5, 10, 50, 60, JBOD |
| Online RAID migration | Yes |
| Online RAID expansion | Yes |
| RAID rebuild | Yes |
| Hot-swap drive bays | Yes |
| Supported file systems | FAT32, HFS+, NTFS, ZFS, 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 manufacturer | Intel |
| Processor family | Intel Atom® |
| Processor model | C5125 |
| Processor frequency | 2.8 GHz |
| Processor cores | 8 |
| Processor threads | 8 |
| Processor cache | 9 MB |
| Number of processors installed | 1 |
| ECC supported by processor | Yes |
| Thermal Design Power (TDP) | 50 W |
| Internal memory | 8 GB |
| Internal memory type | DDR4 |
| Maximum RAM supported | 64 GB |
| Memory slots | 2 |
| Memory form factor | SO-DIMM |
| Flash memory | 5000 MB |
| Ethernet LAN | Yes |
| Ethernet LAN data rates | 10, 100, 1000, 2500 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 |
| USB port | Yes |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
| Fiber optic connector | MTP |
| Ethernet LAN (RJ-45) ports | 2 |
| PCI Express x4 (Gen 3.x) slots | 2 |
| Chassis type | Rack (2U) |
| Cooling type | Active |
| Product colour | Black |
| Number of fans | 3 fan(s) |
| Fan diameter | 6 cm |
| LED indicators | Yes |
| Type | NAS |
| Device class | Small & Medium Business |
| Backup function | Yes |
| Backup features | USB drive, iSCSI LUN |
| Buzzer | Yes |
| Snapshot | Yes |
| Management protocols | SNMP V2, V3 |
| Security algorithms | AES, FIPS 140, HTTPS, SSH |
| Access Control List (ACL) | Yes |
| Reset button | Yes |
| On/off switch | Yes |
| Built-in FTP server | Yes |
| Browser supported | Apple Safari (latest version) Google Chrome (latest version) Microsoft Edge (latest version) Mozilla Firefox (latest version) |
| System log | Yes |
| Hot spare | Yes |
| S.M.A.R.T. support | Yes |
| Share folder | CIFS/SMB |
| USB copy function | Yes |
| Operating system installed | QuTS hero |
| Operating system version | h5.0.1 |
| Windows operating systems supported | Windows 10, Windows 11, Windows 7, Windows 8 |
| Linux operating systems supported | CentOS 7.0, Ubuntu 14.04, Yes |
| Mac operating systems supported | Mac OS X 10.10 Yosemite, 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 |
| Power supply location | Built-in |
| Power supply unit (PSU) capacity | 250 W |
| Number of power supply units | 1 |
| Power consumption (typical) | 79.113 W |
| Power consumption (sleep) | 49.799 W |
| AC input voltage | 100 - 240 V |
| Fan voltage | 12 V |
| Width | 432 mm |
| Depth | 297.4 mm |
| Height | 88.6 mm |
| Weight | 7.61 kg |
| Cables included | AC, LAN (RJ-45) |
| Power cables quantity | 1 |
| Quick installation guide | Yes |
| Number of screws | 56 |
| Operating temperature (T-T) | 0 - 40 °C |
| Operating relative humidity (H-H) | 5 - 95% |
| Storage temperature (T-T) | -20 - 70 °C |
| Fibre Channel | Yes |