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QNAP TS-251B-2G NAS Tower Intel® Celeron® J3355
QNAP

TS-251B-2G NAS Tower Intel® Celeron® J3355

2 GB DDR3L 12000 TB HDD QNAP Turbo System White

Model TS-251B-2GPart no. TS-251B-2G/8TB-IWEAN 5055628439263

167 specifications
  • ProcessorIntel® Celeron®
  • Memory2 GB
  • Noise17.3 dB
  • TypeNAS
  • OSQNAP Turbo System
  • Weight1.53 kg
See all specifications

Overview

Processor
Intel® Celeron®
Memory
2 GB
Noise
17.3 dB
Type
NAS
OS
QNAP Turbo System
Weight
1.53 kg
Brand
QNAP
Model
TS-251B-2G
Part numbers
TS-251B-2G/8TB-IW, TS-251B-2G/12TB-IW, TS-251B-2G/16TB-IW, TS-251B-2G/20TB-IW, TS-251B-2G/24TB-IW, TS-251B-2G/2TB-IW +2 more
EAN / UPC
5055628439263, 5050914098018, 5055628439270, 5050914098032 +11 more
Also known as
QNAP TS-251B-2G NAS Tower Intel® Celeron® J3355 2 GB DDR3L 12000 TB HDD QNAP Turbo System White

Specifications

167 specifications in 15 groups

Storage

Storage drives installedYes
Total installed storage capacity12000 TB
Number of storage drives installed2
Number of storage drives supported2
Installed storage drive typeHDD
Supported storage drive typesHDD & SSD
Storage drive capacity6 TB
Storage drive interfaceSerial ATA III
Supported storage drive interfacesSerial ATA III
Storage drive sizes supported2.5,3.5"
RAID supportYes
RAID levels0, 1, JBOD
RAID rebuildYes
Hot-swap drive baysYes
Supported file systemsFAT32, HFS+, NTFS, exFAT, ext3, ext4
Bad block scanYes
Disk roamingYes

Processor

Processor manufacturerIntel
Processor familyIntel® Celeron®
Processor modelJ3355
Processor frequency2 GHz
Processor boost frequency2.5 GHz
Processor cores2
Processor threads2
Processor cache2 MB
CPU configuration (max)1
ECC supported by processorNo
PCI Express configurations1x2+2x1, 4x1
PCI Express slots version2.0
Processor cache typeSmart Cache
Processor codeSR2Z8
Processor codenameApollo Lake
Processor lithography14 nm
Processor operating modes64-bit
Processor package size24 x 31 mm
Processor socketBGA 1296
SteppingB1
System bus rate5 GT/s
Thermal Design Power (TDP)10 W
Tjunction105 °C
On-board graphics card modelIntel® HD Graphics 500
Maximum internal memory supported by processor8 GB
Conflict-Free processorYes

Memory

Internal memory2 GB
Internal memory typeDDR3L
Maximum RAM supported8 GB
Memory slots2
Flash memory4096 MB

Network

Ethernet LANYes
Ethernet LAN data rates10,100,1000 Mbit/s
Wi-FiNo
DHCP clientYes
DHCP serverYes
Jumbo frames supportYes
iSCSI supportYes
Wake-on-LAN readyYes
Dynamic DNS (DDNS)Yes
Supported network protocolsPPTP, L2TP/IPSec, OpenVPN

Ports & interfaces

Ethernet LAN (RJ-45) ports1
USB portYes
USB 2.0 ports quantity2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity2
Fiber ports quantity0
HDMI ports quantity1
3.5 mm (1/8-inch) outYes
Microphone inYes

Graphics

On-board graphics card base frequency250 MHz
On-board graphics card burst frequency700 MHz
Maximum on-board graphics card memory8 GB
Number of displays supported (on-board graphics)3

Design

Chassis typeTower
Cooling typeActive
Product colourWhite
Number of fans1 fan(s)
Fan diameter7 cm
LED indicatorsHDD, LAN, Power, Status, USB
Built-in displayNo
Cable lock slotYes
Cable lock slot typeKensington
Built-in speaker(s)Yes
Number of built-in speakers1

Performance

TypeNAS
Device classHome & Home Office
Backup functionYes
Backup featuresUSB drive
BuzzerYes
Multilingual supportYes
Noise level17.3 dB
Management protocolsSNMP
Share folder access right managementYes
Access Control List (ACL)Yes
Browser supportedApple Safari 7 or later, Google Chrome, Microsoft Internet Explorer 10 or later, Mozilla Firefox
Built-in BitTorrent clientYes
Built-in FTP serverYes
Built-in iTunes serverYes
Hot spareYes
On/off switchYes
Reset buttonYes
Security algorithms256-bit AES, FIPS 140-2, HTTPS, SSH, SSL/TLS
Share folderCIFS/SMB
System logYes
Universal Plug and Play (UPnP)Yes

Software

Operating system installedQNAP Turbo System
Operating system version4.3.4
Windows operating systems supportedWindows 10, Windows 7, Windows 8
Linux operating systems supportedYes
Mac operating systems supportedMac 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 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Server operating systems supportedWindows Server 2003, Windows Server 2003 x64, Windows Server 2008 R2, Windows Server 2008 R2 x64, Windows Server 2012, Windows Server 2012 R2, Windows Server 2012 R2 x64, Windows Server 2012 x64, Windows Server 2016, Windows Server 2016 x64

Power

Power supply locationExternal
Power supply unit (PSU) capacity65 W
Power consumption (typical)15.25 W
Power consumption (HDD standby)8.08 W
AC input voltage100 - 240 V

Weight & dimensions

Width105 mm
Depth226 mm
Height168 mm
Weight1.53 kg

Packaging content

External power adapterYes
Cables includedAC, LAN (RJ-45)
Quick installation guideYes

Processor special features

Embedded options availableYes
Enhanced Intel SpeedStep TechnologyYes
Execute Disable BitYes
Idle StatesYes
Intel 64Yes
Intel Clear Video TechnologyYes
Intel Enhanced Halt StateYes
Intel Identity Protection Technology version1.00
Intel Rapid Storage TechnologyNo
Intel Secure BootYes
Intel Secure Boot Technology version1.00
Intel Secure Key Technology version1.00
Intel Small Business Advantage (SBA) version0.00
Intel Smart Connect TechnologyNo
Intel Smart Connect Technology version0.00
Intel Smart Response Technology version0.00
Intel Stable Image Platform Program (SIPP)No
Intel Stable Image Platform Program (SIPP) version0.00
Intel Trusted Execution TechnologyNo
Intel VT-x with Extended Page Tables (EPT)Yes
Intel Virtualization Technology (VT-x)Yes
Intel Virtualization Technology for Directed I/O (VT-d)Yes
Intel® AES New Instructions (Intel® AES-NI)Yes
Intel® Anti-Theft Technology (Intel® AT)No
Intel® Clear Video HD Technology (Intel® CVT HD)Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Yes
Intel® High Definition Audio (Intel® HD Audio)Yes
Intel® Hyper Threading Technology (Intel® HT Technology)No
Intel® Identity Protection Technology (Intel® IPT)Yes
Intel® InTru™ 3D TechnologyNo
Intel® Insider™No
Intel® OS GuardNo
Intel® Quick Sync Video TechnologyYes
Intel® Secure KeyYes
Intel® Small Business Advantage (Intel® SBA)No
Intel® Smart Response TechnologyNo
Intel® Turbo Boost TechnologyNo
Intel® Wireless Display (Intel® WiDi)No
Maximum number of PCI Express lanes6
Number of execution units12
Thermal Monitoring TechnologiesYes
UARTYes
Memory channels supported by processorDual
Memory types supported by processorDDR3L, LPDDR3-SDRAM, LPDDR4-SDRAM

Operational conditions

Operating temperature (T-T)0 - 40 °C
Operating relative humidity (H-H)5 - 95%

Other features

Processor ARK ID95597

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