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When I sometimes have to turn off electricity for the house, I notice that my QNAP NAS 251+ does not automatically switch itself back on when electricity is turned back on. I have to press the NAS power button. Unlike my routers, phone, alarm, fridge etc. It made me think, if I am not at home and there is a power cut, how can I make sure my NAS turns itself back on?
is t-251+ x86 based






View the manual for the QNAP TS-251+ here, for free. This manual comes under the category Servers and has been rated by 1 people with an average of a 8.8. This manual is available in the following languages: English. Do you have a question about the QNAP TS-251+ or do you need help? Ask your question here


| Type | NAS |
| Security algorithms | 256-bit AES,FIPS 140-2,HTTPS,SSH |
| Management protocols | SNMP |
| Browser supported | Apple Safari 7+, Google Chrome, Microsoft Internet Explorer 10+, Mozilla Firefox |
| Noise level | 15.4 dB |
| Buzzer | ✓ |
| Snapshot | ✓ |
| Web-based management | ✓ |
| Reset button | ✓ |
| On/off switch | ✓ |
| S.M.A.R.T. support | ✓ |
| Remotely operated | ✓ |
| Universal Plug and Play (UPnP) | ✓ |
| Device class | Home & Home Office |
| Backup function | ✓ |
| Backup features | Cloud,USB drive,iSCSI LUN |
| Backup button | ✓ |
| Built-in iTunes server | ✓ |
| Built-in FTP server | ✓ |
| System log | ✓ |
| Share folder | 512 |
| Share folder access right management | ✓ |
| Processor model | - |
| Processor family | Intel® Celeron® |
| Processor cores | 4 |
| Processor frequency | 2 GHz |
| Weight | 1280 g |
| Package weight | 2320 g |
| Height | 169 mm |
| Width | 102 mm |
| Depth | 219 mm |
| Power consumption (typical) | 18.09 W |
| Power consumption (sleep) | 0.57 W |
| AC input voltage | 100 - 240 V |
| Power supply location | External |
| Fan voltage | 12 V |
| Power supply unit (PSU) capacity | 60 W |
| Power consumption (HDD standby) | 10.56 W |
| Flash memory | 512 MB |
| Memory slots | 2x SODIMM |
| Memory clock speed | 1600 MHz |
| Internal memory | - GB |
| Maximum RAM supported | 8 GB |
| Internal memory type | DDR3L |
| Supported network protocols | CIFS/SMB, AFP v3.3, NFS v3, FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, SMSC |
| Ethernet LAN | ✓ |
| Wake-on-LAN ready | ✓ |
| Wi-Fi | ✗ |
| Link aggregation | ✓ |
| Jumbo frames support | ✓ |
| DHCP client | ✓ |
| DHCP server | ✓ |
| Ethernet LAN data rates | 10,100,1000 Mbit/s |
| iSCSI support | ✓ |
| Dynamic DNS (DDNS) | ✓ |
| Operating relative humidity (H-H) | 5 - 95 % |
| Operating temperature (T-T) | 0 - 40 °C |
| Chassis type | Tower |
| Cable lock slot | ✓ |
| LED indicators | HDD,LAN,Power,Status,USB |
| Product colour | Black |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| Fan diameter | 70 mm |
| Cable lock slot type | Kensington |
| Mac compatibility | ✓ |
| Operating system installed | QNAP Turbo System |
| Operating system version | 4.3 |
| 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 Pro,Windows 10 Pro 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 10.7 Lion,Mac OS X 10.8 Mountain Lion,Mac OS X 10.9 Mavericks |
| Linux operating systems supported | ✓ |
| Server operating systems supported | Windows Server 2003,Windows Server 2008 R2,Windows Server 2012,Windows Server 2012 R2,Windows Server 2016 |
| RAID levels | 0,1,JBOD |
| Supported file systems | FAT32,HFS+,NTFS,exFAT,ext3,ext4 |
| RAID support | ✓ |
| Storage drive size | - " |
| Number of storage drives supported | 2 |
| Storage drive sizes supported | 2.5,3.5 " |
| Storage drives installed | ✓ |
| Total installed storage capacity | 8 TB |
| Number of storage drives installed | 2 |
| Installed storage drive type | HDD |
| Supported storage drive types | HDD & SSD |
| Hot-swap drive bays | ✓ |
| Storage drive capacity | 4000 GB |
| Supported storage drive interfaces | Serial ATA II,Serial ATA III |
| Online RAID migration | ✓ |
| Online RAID expansion | ✓ |
| Bad block scan | ✓ |
| Remote control included | ✓ |
| Cables included | AC,LAN (RJ-45) |
| External power adapter | ✓ |
| Quick installation guide | ✓ |
| Number of screws | 14 |
| USB 2.0 ports quantity | 2 |
| Ethernet LAN (RJ-45) ports | 2 |
| HDMI ports quantity | 1 |
| Fiber ports quantity | 0 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 |
| USB port | ✓ |
| Number of simultaneous users | 4096 user(s) |
Below, you will find the most frequently asked questions about the QNAP TS-251+.
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Can the dashboard be reached by using windows explorer window and typing in the IP address of the unit on local network?