Product comparison · 2 nas & storage servers

QNAP TS-251B NAS Tower Intel® Celeron® J3355 vs QNAP TS-431X2-8G NAS Tower Annapurna Labs Alpine AL-314

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  • 71specifications compared
  • 34differ
  • 37identical
  • 105known for one product only

Key differences

  • Storage drives installed
    • TS-251B NAS Tower Intel® Celeron® J3355:No
    • TS-431X2-8G NAS Tower Annapurna Labs Alpine AL-314:Yes
  • Total installed storage capacity
    • TS-251B NAS Tower Intel® Celeron® J3355:0 TB
    • TS-431X2-8G NAS Tower Annapurna Labs Alpine AL-314:24 TB
  • Number of storage drives installed
    • TS-251B NAS Tower Intel® Celeron® J3355:0
    • TS-431X2-8G NAS Tower Annapurna Labs Alpine AL-314:4
  • Number of storage drives supported
    • TS-251B NAS Tower Intel® Celeron® J3355:2
    • TS-431X2-8G NAS Tower Annapurna Labs Alpine AL-314:4
  • Installed storage drive type
    • TS-251B NAS Tower Intel® Celeron® J3355:No
    • TS-431X2-8G NAS Tower Annapurna Labs Alpine AL-314:HDD
  • RAID levels
    • TS-251B NAS Tower Intel® Celeron® J3355:0, 1, JBOD
    • TS-431X2-8G NAS Tower Annapurna Labs Alpine AL-314:0, 1, 5, 6, 10, JBOD
  • Processor family
    • TS-251B NAS Tower Intel® Celeron® J3355:Intel® Celeron®
    • TS-431X2-8G NAS Tower Annapurna Labs Alpine AL-314:Annapurna Labs
  • Processor model
    • TS-251B NAS Tower Intel® Celeron® J3355:J3355
    • TS-431X2-8G NAS Tower Annapurna Labs Alpine AL-314:Alpine AL-314

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Comparison of TS-251B, TS-431X2-8G
176 specifications
Storage8 differ
Storage drives installedDiffersNoYes
Total installed storage capacityDiffers0 TB24 TB
Number of storage drives installedDiffers04
Number of storage drives supportedDiffers24
Installed storage drive typeDiffersNoHDD
Supported storage drive typesHDD & SSDHDD & SSD
Storage drive interfaceSerial ATA IIISerial ATA III
Supported storage drive interfacesDiffersSerial ATA IIISerial ATA II, Serial ATA III
Storage drive sizes supported2.5,3.5"2.5,3.5"
RAID supportYesYes
RAID levelsDiffers0, 1, JBOD0, 1, 5, 6, 10, JBOD
RAID rebuildKnown for oneYesUnknown — not stated by the source
Hot-swap drive baysYesYes
Supported file systemsDiffersFAT32, HFS+, NTFS, exFAT, ext3, ext4FAT32, HFS+, NTFS, ext3, ext4
Bad block scanKnown for oneYesUnknown — not stated by the source
Disk roamingKnown for oneYesUnknown — not stated by the source
Storage drive capacityKnown for oneUnknown — not stated by the source6 TB
Processor4 differ
Processor manufacturerKnown for oneIntelUnknown — not stated by the source
Processor familyDiffersIntel® Celeron®Annapurna Labs
Processor modelDiffersJ3355Alpine AL-314
Processor frequencyDiffers2 GHz1.7 GHz
Processor boost frequencyKnown for one2.5 GHzUnknown — not stated by the source
Processor coresDiffers24
Processor threadsKnown for one2Unknown — not stated by the source
Processor cacheKnown for one2 MBUnknown — not stated by the source
CPU configuration (max)Known for one1Unknown — not stated by the source
ECC supported by processorKnown for oneNoUnknown — not stated by the source
PCI Express configurationsKnown for one1x2+2x1, 4x1Unknown — not stated by the source
PCI Express slots versionKnown for one2.0Unknown — not stated by the source
Processor cache typeKnown for oneSmart CacheUnknown — not stated by the source
Processor codeKnown for oneSR2Z8Unknown — not stated by the source
Processor codenameKnown for oneApollo LakeUnknown — not stated by the source
Processor lithographyKnown for one14 nmUnknown — not stated by the source
Processor operating modesKnown for one64-bitUnknown — not stated by the source
Processor package sizeKnown for one24 x 31 mmUnknown — not stated by the source
Processor socketKnown for oneBGA 1296Unknown — not stated by the source
SteppingKnown for oneB1Unknown — not stated by the source
System bus rateKnown for one5 GT/sUnknown — not stated by the source
Thermal Design Power (TDP)Known for one10 WUnknown — not stated by the source
TjunctionKnown for one105 °CUnknown — not stated by the source
On-board graphics card modelKnown for oneIntel® HD Graphics 500Unknown — not stated by the source
Maximum internal memory supported by processorKnown for one8 GBUnknown — not stated by the source
Conflict-Free processorKnown for oneYesUnknown — not stated by the source
Memory4 differ
Internal memoryDiffers2 GB8 GB
Internal memory typeDiffersDDR3LDDR3
Maximum RAM supported8 GB8 GB
Memory slotsDiffers21
Flash memoryDiffers4096 MB512 MB
Memory form factorKnown for oneUnknown — not stated by the sourceSO-DIMM
Network2 differ
Ethernet LANYesYes
Ethernet LAN data ratesDiffers10,100,1000 Mbit/s10,100,1000,10000 Mbit/s
Wi-FiNoNo
DHCP clientYesYes
DHCP serverYesYes
Jumbo frames supportYesYes
iSCSI supportYesYes
Wake-on-LAN readyYesYes
Dynamic DNS (DDNS)Known for oneYesUnknown — not stated by the source
Supported network protocolsDiffersPPTP, L2TP/IPSec, OpenVPNCIFS/SMB, AFP (v3.3), NFS(v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, SMSC
Ethernet LAN data rate supported (max)Known for oneUnknown — not stated by the source10000 Mbit/s
Ports & interfaces4 differ
Ethernet LAN (RJ-45) portsDiffers12
USB portYesYes
USB 2.0 ports quantityDiffers20
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers23
Fiber ports quantityDiffers01
HDMI ports quantityKnown for one1Unknown — not stated by the source
HDMI versionKnown for one1.4bUnknown — not stated by the source
3.5 mm (1/8-inch) outKnown for oneYesUnknown — not stated by the source
Microphone inKnown for oneYesUnknown — not stated by the source
Fiber optic connectorKnown for oneUnknown — not stated by the sourceSFP+
Graphicsidentical
On-board graphics card base frequencyKnown for one250 MHzUnknown — not stated by the source
On-board graphics card burst frequencyKnown for one700 MHzUnknown — not stated by the source
Maximum on-board graphics card memoryKnown for one8 GBUnknown — not stated by the source
Number of displays supported (on-board graphics)Known for one3Unknown — not stated by the source
Design3 differ
Chassis typeTowerTower
Cooling typeActiveActive
Product colourDiffersWhiteBlack
Number of fans1 fan(s)1 fan(s)
Fan diameterDiffers7 cm12 cm
LED indicatorsDiffersHDD, LAN, Power, Status, USBHDD, LAN, Status, USB
Built-in displayKnown for oneNoUnknown — not stated by the source
Cable lock slotYesYes
Cable lock slot typeKensingtonKensington
Built-in speaker(s)Known for oneYesUnknown — not stated by the source
Number of built-in speakersKnown for one1Unknown — not stated by the source
Performance2 differ
TypeNASNAS
Device classHome & Home OfficeHome & Home Office
Backup functionYesYes
Backup featuresDiffersUSB driveCloud, iSCSI LUN
BuzzerYesYes
Multilingual supportYesYes
Noise levelKnown for one17.3 dBUnknown — not stated by the source
Management protocolsKnown for oneSNMPUnknown — not stated by the source
Share folder access right managementKnown for oneYesUnknown — not stated by the source
Access Control List (ACL)Known for oneYesUnknown — not stated by the source
Browser supportedDiffersApple Safari 7 or later, Google Chrome, Microsoft Internet Explorer 10 or later, Mozilla FirefoxMicrosoft Internet Explorer 10+, Mozilla Firefox 8+, Apple Safari 4+, Google Chrome
Built-in BitTorrent clientKnown for oneYesUnknown — not stated by the source
Built-in FTP serverYesYes
Built-in iTunes serverYesYes
Hot spareYesYes
On/off switchYesYes
Reset buttonYesYes
Security algorithms256-bit AES, FIPS 140-2, HTTPS, SSH, SSL/TLS256-bit AES, FIPS 140-2, HTTPS, SSH, SSL/TLS
Share folderKnown for oneCIFS/SMBUnknown — not stated by the source
System logKnown for oneYesUnknown — not stated by the source
Universal Plug and Play (UPnP)Known for oneYesUnknown — not stated by the source
Number of usersKnown for oneUnknown — not stated by the source4096 user(s)
Web-based managementKnown for oneUnknown — not stated by the sourceYes
S.M.A.R.T. supportKnown for oneUnknown — not stated by the sourceYes
Software3 differ
Operating system installedKnown for oneQNAP Turbo SystemUnknown — not stated by the source
Operating system versionDiffers4.3.44.3
Windows operating systems supportedWindows 10, Windows 7, Windows 8Windows 10, Windows 7, Windows 8
Linux operating systems supportedKnown for oneYesUnknown — not stated by the source
Mac operating systems supportedDiffersMac 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 MavericksMac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Server operating systems supportedDiffersWindows 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 x64Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016
Power1 differ
Power supply locationExternalExternal
Power supply unit (PSU) capacityDiffers65 W90 W
Power consumption (typical)Known for one15.25 WUnknown — not stated by the source
Power consumption (HDD standby)Known for one8.08 WUnknown — not stated by the source
AC input voltageKnown for one100 - 240 VUnknown — not stated by the source
Number of power supply unitsKnown for oneUnknown — not stated by the source1
Fan voltageKnown for oneUnknown — not stated by the source12 V
Weight & dimensions3 differ
WidthDiffers105 mm160 mm
DepthDiffers226 mm219 mm
HeightDiffers168 mm169 mm
WeightKnown for one1.53 kgUnknown — not stated by the source
Packaging contentidentical
External power adapterYesYes
Cables includedAC, LAN (RJ-45)AC, LAN (RJ-45)
Quick installation guideYesYes
Processor special featuresidentical
Embedded options availableKnown for oneYesUnknown — not stated by the source
Enhanced Intel SpeedStep TechnologyKnown for oneYesUnknown — not stated by the source
Execute Disable BitKnown for oneYesUnknown — not stated by the source
Idle StatesKnown for oneYesUnknown — not stated by the source
Intel 64Known for oneYesUnknown — not stated by the source
Intel Clear Video TechnologyKnown for oneYesUnknown — not stated by the source
Intel Enhanced Halt StateKnown for oneYesUnknown — not stated by the source
Intel Identity Protection Technology versionKnown for one1.00Unknown — not stated by the source
Intel Rapid Storage TechnologyKnown for oneNoUnknown — not stated by the source
Intel Secure BootKnown for oneYesUnknown — not stated by the source
Intel Secure Boot Technology versionKnown for one1.00Unknown — not stated by the source
Intel Secure Key Technology versionKnown for one1.00Unknown — not stated by the source
Intel Small Business Advantage (SBA) versionKnown for one0.00Unknown — not stated by the source
Intel Smart Connect TechnologyKnown for oneNoUnknown — not stated by the source
Intel Smart Connect Technology versionKnown for one0.00Unknown — not stated by the source
Intel Smart Response Technology versionKnown for one0.00Unknown — not stated by the source
Intel Stable Image Platform Program (SIPP)Known for oneNoUnknown — not stated by the source
Intel Stable Image Platform Program (SIPP) versionKnown for one0.00Unknown — not stated by the source
Intel Trusted Execution TechnologyKnown for oneNoUnknown — not stated by the source
Intel VT-x with Extended Page Tables (EPT)Known for oneYesUnknown — not stated by the source
Intel Virtualization Technology (VT-x)Known for oneYesUnknown — not stated by the source
Intel Virtualization Technology for Directed I/O (VT-d)Known for oneYesUnknown — not stated by the source
Intel® AES New Instructions (Intel® AES-NI)Known for oneYesUnknown — not stated by the source
Intel® Anti-Theft Technology (Intel® AT)Known for oneNoUnknown — not stated by the source
Intel® Clear Video HD Technology (Intel® CVT HD)Known for oneYesUnknown — not stated by the source
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for oneYesUnknown — not stated by the source
Intel® High Definition Audio (Intel® HD Audio)Known for oneYesUnknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)Known for oneNoUnknown — not stated by the source
Intel® Identity Protection Technology (Intel® IPT)Known for oneYesUnknown — not stated by the source
Intel® InTru™ 3D TechnologyKnown for oneNoUnknown — not stated by the source
Intel® Insider™Known for oneNoUnknown — not stated by the source
Intel® OS GuardKnown for oneNoUnknown — not stated by the source
Intel® Quick Sync Video TechnologyKnown for oneYesUnknown — not stated by the source
Intel® Secure KeyKnown for oneYesUnknown — not stated by the source
Intel® Small Business Advantage (Intel® SBA)Known for oneNoUnknown — not stated by the source
Intel® Smart Response TechnologyKnown for oneNoUnknown — not stated by the source
Intel® Turbo Boost TechnologyKnown for oneNoUnknown — not stated by the source
Intel® Wireless Display (Intel® WiDi)Known for oneNoUnknown — not stated by the source
Maximum number of PCI Express lanesKnown for one6Unknown — not stated by the source
Number of execution unitsKnown for one12Unknown — not stated by the source
Thermal Monitoring TechnologiesKnown for oneYesUnknown — not stated by the source
UARTKnown for oneYesUnknown — not stated by the source
Memory channels supported by processorKnown for oneDualUnknown — not stated by the source
Memory types supported by processorKnown for oneDDR3L, LPDDR3-SDRAM, LPDDR4-SDRAMUnknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)0 - 40 °C0 - 40 °C
Operating relative humidity (H-H)5 - 95%5 - 95%
Other featuresidentical
Processor ARK IDKnown for one95597Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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