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Product comparison · 2 nas & storage servers

QNAP SS-839 Pro Turbo NAS 4TB vs Seagate BlackArmor NAS 440 8-TB Network Storage Server

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  • 10specifications compared
  • 8differ
  • 2identical
  • 22known for one product only

Key differences

  • Total installed storage capacity
    • 4 TB
    • 8 TB
  • Number of storage drives installed
    • 8
    • 1
  • Storage drive capacity
    • 500 GB
    • 8 TB
  • RAID levels
    • JBOD
    • 0, 1, 5, 10, JBOD
  • USB 2.0 ports quantity
    • 5
    • 4
  • Weight
    • 3.92 kg
    • 6.16 kg
  • Dimensions (WxDxH)
    • 177 x 180 x 235 mm
    • 207.00 x 269.00 x 160.00 mm

Side by side

Differences highlightedShow differences only
32 specifications
A

QNAP

SS-839 Pro Turbo NAS 4TBView product
B

Seagate

BlackArmor NAS 440 8-TB Network Storage ServerView product
Storage4 differ
Total installed storage capacityDiffers4 TB8 TB
Number of storage drives installedDiffers81
Storage drive capacityDiffers500 GB8 TB
Storage drive interfaceSerial ATA IISerial ATA II
Storage drive sizeKnown for one2.5"
RAID levelsDiffersJBOD0, 1, 5, 10, JBOD
HDD speedKnown for one7200 RPM
Processoridentical
Processor frequencyKnown for one1.6 GHz
Number of processors installedKnown for one1
Memoryidentical
Internal memoryKnown for one2 GB
Flash memoryKnown for one128 MB
Networkidentical
DHCP clientKnown for oneYes
Jumbo frames supportKnown for oneYes
Supported network protocolsKnown for oneTCP/IP, DHCP Client, DHCP Server, CIFS/SMB, AFP, NFS, HTTP, HTTPS, FTP, DDNS, NTP
Ports & interfaces1 differ
Ethernet LAN (RJ-45) ports22
USB 2.0 ports quantityDiffers54
eSATAKnown for oneYes
Designidentical
Chassis typeKnown for oneTower
Display typeKnown for oneLCD
Performanceidentical
Access Control List (ACL)Known for oneYes
Poweridentical
Power consumption (typical)Known for one34 W
Weight & dimensions1 differ
WeightDiffers3.92 kg6.16 kg
Package weightKnown for one7.54 kg
Operational conditionsidentical
Operating temperature (T-T)Known for one0 - 40 °C
Operating relative humidity (H-H)Known for one0 - 95%
Other features2 differ
Compatible operating systemsDiffersMicrosoft Windows 98/ ME/ NT/ 2000/ XP/ 2003/ Vista/ Windows 7 (32bit & 64bit), Mac OS X, Linux, UnixMicrosoft Windows XP, Vista Linux Kernel 2.6.7 + Mac OS X 10.4.11 +
Dimensions (WxDxH)Differs177 x 180 x 235 mm207.00 x 269.00 x 160.00 mm
Power requirementsKnown for one100-240V AC, 50/60Hz
Minimum RAMKnown for one256 MB
Minimum processorKnown for onePentium III, 500MHz
Package dimensions (WxDxH)Known for one241.30 x 365.00 x 236.00 mm
Supported protocolsKnown for oneCIFS, NFS, HTTP, HTTPS, FTP, Bonjour, Microsoft RALLY

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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