QNAP TS-251+-4G 8TB NAS Server Preloaded with Western Digital Red HDDs
Compact yet powerful, this QNAP TS‑251+ houses two 4 TB Western Digital Red drives in a quiet tower chassis with a single 12 V fan and active cooling. The Intel Celeron 2 GHz core runs Turbo System 4.3, supporting RAID 0/1/JBOD, iSCSI, and snapshot backups to cloud or USB. With 4 GB DDR3L RAM, dual HDMI output, and a Kensington lock slot, it delivers fast SMB, AFP, NFS sharing and remote management via web, SSH, or SNMP while keeping noise below 15 dB.
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| Brand | QNAP |
| EAN | 5051868296666 |
| ASIN | B01EJILL5Q |
| Model | TS-251+-4G-8TB-RED |
| MPN | TS-251+-4G-8TB-RED |
| SKU | TS-251+-4G-8TB-RED |
| AC input voltage | 100 - 240 V |
| Backup button | Yes |
| Backup features | Cloud,USB drive,iSCSI LUN |
| Backup function | Yes |
| Bad block scan | Yes |
| Browser supported | Apple Safari 7+, Google Chrome, Microsoft Internet Explorer 10+, Mozilla Firefox |
| Built-in FTP server | Yes |
| Built-in iTunes server | Yes |
| Buzzer | Yes |
| Cable lock slot | Yes |
| Cable lock slot type | Kensington |
| Cables included | AC,LAN (RJ-45) |
| Chassis type | Tower |
| Cooling type | Active |
| Depth | 219 mm |
| Device class | Home & Home Office |
| DHCP Client | Yes |
| DHCP server | Yes |
| Ethernet LAN | Yes |
| Ethernet LAN data rates | 10,100,1000 Mbit/s |
| External power adapter | Yes |
| Fan diameter | 7 cm |
| Fan voltage | 12 V |
| Flash memory | 512 MB |
| Handheld remote control | Yes |
| HDMI ports quantity | 1 |
| Height | 169 mm |
| Hot-swap drive bays | Yes |
| Installed storage drive type | HDD |
| Internal memory | 4 GB |
| Internal memory type | DDR3L |
| iSCSI support | Yes |
| Jumbo frames support | Yes |
| LED indicators | HDD,LAN,Power,Status,USB |
| Link aggregation | Yes |
| Linux operating systems supported | Yes |
| Mac compatibility | Yes |
| Mac operating systems supported | Mac OS X 10.7 Lion,Mac OS X 10.8 Mountain Lion,Mac OS X 10.9 Mavericks |
| Management protocols | SNMP |
| Maximum RAM supported | 8 GB |
| Memory clock speed | 1600 MHz |
| Memory slots | 2x SODIMM |
| Noise level | 15.4 dB |
| Number of screws | 14 |
| On/off switch | Yes |
| Online RAID expansion | Yes |
| Online RAID migration | Yes |
| Operating system installed | QNAP Turbo System |
| Operating system version | 4.3 |
| Power supply location | External |
| Processor family | Intel® Celeron® |
| Quick installation guide | Yes |
| RAID levels | 0,1,JBOD |
| RAID support | Yes |
| Remotely operated | Yes |
| Reset button | Yes |
| S.M.A.R.T. support | Yes |
| Security algorithms | 256-bit AES,FIPS 140-2,HTTPS,SSH |
| Share folder access right management | Yes |
| Snapshot | Yes |
| Storage drive sizes supported | 2.5,3.5" |
| Storage drives installed | Yes |
| Supported file systems | FAT32,HFS+,NTFS,exFAT,ext3,ext4 |
| Supported network protocols | CIFS/SMB, AFP v3.3, NFS v3, FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, SMSC |
| Supported storage drive interfaces | Serial ATA II,Serial ATA III |
| Supported storage drive types | HDD,SSD |
| System log | Yes |
| Type | NAS |
| USB port | Yes |
| Wake-on-LAN ready | Yes |
| Web-based management | Yes |
| Weight | 1.28 kg |
| Wi-Fi | No |
| Width | 102 mm |
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