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Product comparison · 2 nas & storage servers

Buffalo LinkStation 441D vs QNAP TS-251+-2G NAS Tower Intel® Celeron®

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  • 42specifications compared
  • 22differ
  • 20identical
  • 42known for one product only

Key differences

  • Total installed storage capacity
    • 10 TB
    • 6 TB
  • Number of storage drives installed
    • 1
    • 2
  • Number of storage drives supported
    • 4
    • 2
  • Supported storage drive types
    • HDD
    • HDD & SSD
  • Storage drive capacity
    • 10 TB
    • 3 TB
  • RAID levels
    • 0, 1, 5, 10, JBOD
    • 0, 1, JBOD
  • Hot-swap drive bays
    • No
    • Yes
  • Processor family
    • Marvell Armada 370
    • Intel® Celeron®

Side by side

Differences highlightedShow differences only
84 specifications
A

Buffalo

LinkStation 441DView product
B

QNAP

TS-251+-2G NAS Tower Intel® Celeron®

Model TS-251+-2G

View product
Storage8 differ
Storage drives installedYesYes
Total installed storage capacityDiffers10 TB6 TB
Number of storage drives installedDiffers12
Number of storage drives supportedDiffers42
Installed storage drive typeHDDHDD
Supported storage drive typesDiffersHDDHDD & SSD
Storage drive capacityDiffers10 TB3 TB
Storage drive interfaceDiffersSerial ATA IIISerial ATA II, Serial ATA III
Storage drive size3.5"3.5"
RAID supportYesYes
RAID levelsDiffers0, 1, 5, 10, JBOD0, 1, JBOD
Hot-swap drive baysDiffersNoYes
Supported file systemsKnown for oneFAT32, HFS+, NTFS, ext3, ext4
HDD speedKnown for one5900 RPM
Maximum supported storage capacityKnown for one16 TB
Processor2 differ
Processor familyDiffersMarvell Armada 370Intel® Celeron®
Processor frequencyDiffers1.2 GHz2 GHz
Processor coresKnown for one4
Processor modelKnown for oneArmada 370
Memory1 differ
Internal memoryDiffers0.512 GB2 GB
Internal memory typeDDR3DDR3
Maximum RAM supportedKnown for one8 GB
Memory slotsKnown for one2
Flash memoryKnown for one512 MB
Networkidentical
Ethernet LANYesYes
Ethernet LAN data rates10,100,1000 Mbit/s10,100,1000 Mbit/s
Wi-FiNoNo
DHCP clientKnown for oneYes
DHCP serverKnown for oneYes
iSCSI supportKnown for oneYes
Wake-on-LAN readyKnown for oneYes
Supported network protocolsKnown for oneTCP/IP
Ports & interfaces2 differ
Ethernet LAN (RJ-45) portsDiffers12
USB 2.0 ports quantityDiffers12
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity22
Fiber ports quantity00
HDMI ports quantityKnown for one1
Design1 differ
Chassis typeKnown for oneTower
Cooling typeActiveActive
Product colourDiffersBlackGrey
Number of fansKnown for one1 fan(s)
Fan diameterKnown for one7 cm
LED indicatorsKnown for oneHDD, LAN, Power, Status, USB
Cable lock slotYesYes
Cable lock slot typeKnown for oneKensington
Performanceidentical
TypeNASNAS
Device classHome & Home OfficeHome & Home Office
Backup functionYesYes
BuzzerKnown for oneYes
Multilingual supportKnown for oneYes
Web-based managementYesYes
Access Control List (ACL)Known for oneYes
Built-in FTP serverKnown for oneYes
Built-in iTunes serverKnown for oneYes
On/off switchKnown for oneYes
Reset buttonKnown for oneYes
S.M.A.R.T. supportKnown for oneYes
Management protocolsKnown for oneHTTP/HTTPS
Built-in BitTorrent clientKnown for oneYes
Powerful backup NovaBACKUP ProfessionalKnown for oneYes
Software3 differ
Operating system installedKnown for oneQNAP Turbo System
Operating system versionKnown for one4.2
Windows operating systems supportedDiffersYesWindows 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 8, Win
Linux operating systems supportedKnown for oneYes
Mac compatibilityKnown for oneYes
Mac operating systems supportedDiffersYesMac OS X 10.0 Cheetah, Mac OS X 10.1 Puma, Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.2 Jaguar, Mac OS X 10.3 Panther, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Server operating systems supportedDiffersWindows Server 2008, Windows Server 2008 R2, Windows Server 2008 R2 x64, Windows Server 2008 x64, Windows Server 2012, Windows Server 2012 R2, Windows Server 2012 R2 x64, Windows Server 2012 x64Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2
Poweridentical
Power supply locationExternalExternal
Power supply unit (PSU) capacityKnown for one60 W
AC input voltage100-240 V100-240 V
Fan voltageKnown for one12 V
Number of power supply unitsKnown for one1
Power consumption (typical)Known for one28 W
AC input frequencyKnown for one50 - 60 Hz
Weight & dimensions3 differ
WidthDiffers177 mm102 mm
DepthDiffers227 mm225 mm
HeightDiffers127.5 mm168.5 mm
Packaging contentidentical
External power adapterYesYes
Cables includedKnown for oneAC, LAN (RJ-45)
Quick installation guideYesYes
Quick start guideKnown for oneYes
Operational conditions2 differ
Operating temperature (T-T)Differs5 - 35 °C0 - 40 °C
Operating relative humidity (H-H)Differs20 - 80%5 - 95%
Other featuresidentical
Digital Living Network Alliance (DLNA) certifiedKnown for oneYes

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