QNAP TS-855EU-RP NAS Rack (2U) Intel Atom® C5125 8 GB DDR4 0 TB QuTS hero Black
| Storage |
| Hot-swap drive bays |
Yes |
| RAID rebuild |
Yes |
| Online RAID expansion |
Yes |
| Online RAID migration |
Yes |
| RAID levels |
0, 1, 5, 6, 10, 50, 60 |
| RAID support |
Yes |
| Number of M.2 (M & B) slots |
2 |
| Storage drive sizes supported |
2.5,3.5,M.2 |
| Supported storage drive interfaces |
Serial ATA II, Serial ATA III |
| Supported storage drive types |
HDD & SSD |
| Installed storage drive type |
No |
| Number of storage drives supported |
8 |
| Total installed storage capacity |
0 TB |
| Storage drives installed |
No |
| Processor |
| Processor cache |
9 MB |
| Processor threads |
8 |
| Processor cores |
8 |
| Processor frequency |
2.8 GHz |
| Processor model |
C5125 |
| Processor family |
Intel Atom® |
| Processor manufacturer |
Intel |
| Memory |
| Flash memory |
5000 MB |
| Memory slots |
2 |
| Memory form factor |
SO-DIMM |
| Maximum RAM supported |
64 GB |
| Internal memory |
8 GB |
| Internal memory type |
DDR4 |
| Network |
| Wake-on-LAN ready |
Yes |
| iSCSI support |
Yes |
| Jumbo frames support |
Yes |
| DHCP server |
Yes |
| Ethernet LAN data rates |
10,100,1000,2500 Mbit/s |
| Ethernet LAN |
Yes |
| Ports & interfaces |
| PCI Express x4 (Gen 3.x) slots |
2 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity |
4 |
| USB port |
Yes |
| Ethernet LAN (RJ-45) ports |
2 |
| Design |
| LED indicators |
Yes |
| Fan diameter |
6 cm |
| Number of fans |
3 fan(s) |
| Product colour |
Black |
| Cooling type |
Active |
| Chassis type |
Rack (2U) |
| Performance |
| Security algorithms |
AES |
| Reset button |
Yes |
| On/off switch |
Yes |
| Web-based management |
Yes |
| Share folder access right management |
Yes |
| Snapshot |
Yes |
| Multilingual support |
Yes |
| Buzzer |
Yes |
| Backup function |
Yes |
| Device class |
Small & Medium Business |
| Type |
NAS |
| Software |
| Mac operating systems supported |
Mac OS X 10.10 Yosemite, Yes |
| Linux operating systems supported |
CentOS 7.0, Ubuntu 14.04, Yes |
| Windows operating systems supported |
Windows 10, Windows 7, Windows 8 |
| Operating system version |
h5.0.1 |
| Operating system installed |
QuTS hero |
| Power |
| Fan voltage |
12 V |
| AC input voltage |
100 – 240 V |
| Power consumption (sleep) |
54.331 W |
| Power consumption (typical) |
78.73 W |
| Number of power supply units |
2 |
| Power supply unit (PSU) capacity |
300 W |
| Power supply location |
Built-in |
| Weight & dimensions |
| Weight |
8.15 kg |
| Height |
88.6 mm |
| Depth |
297.4 mm |
| Width |
432 mm |
| Operational conditions |
| Storage temperature (T-T) |
-20 – 70 °C |
| Operating relative humidity (H-H) |
5 – 95% |
| Operating temperature (T-T) |
0 – 40 °C |
