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Product comparison · 2 nas & storage servers

QNAP TS-421U + 4x 1TBWDRED vs QNAP TS-670 + 6x 1TBWDRED

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  • 63specifications compared
  • 19differ
  • 44identical
  • 11known for one product only

Key differences

  • Total installed storage capacity
    • 4 TB
    • 6 TB
  • Number of storage drives installed
    • 4
    • 6
  • Number of storage drives supported
    • 4
    • 6
  • Supported storage drive types
    • HDD
    • HDD & SSD
  • Processor frequency
    • 2 GHz
    • 2.6 GHz
  • Internal memory
    • 1 GB
    • 2 GB
  • Flash memory
    • 16 MB
    • 512 MB
  • Ethernet LAN (RJ-45) ports
    • 2
    • 4

Side by side

Differences highlightedShow differences only
74 specifications
A

QNAP

TS-421U + 4x 1TBWDREDView product
B

QNAP

TS-670 + 6x 1TBWDREDView product
Storage5 differ
Storage drives installedYesYes
Total installed storage capacityDiffers4 TB6 TB
Number of storage drives installedDiffers46
Number of storage drives supportedDiffers46
Installed storage drive typeHDDHDD
Supported storage drive typesDiffersHDDHDD & SSD
Storage drive capacity1 TB1 TB
Storage drive interfaceDiffersSerial ATA, Serial ATA IISerial ATA II, Serial ATA III
Storage drive size2.5/3.5"2.5/3.5"
RAID supportYesYes
RAID levels0, 1, 5, 6, 10, JBOD0, 1, 5, 6, 10, JBOD
Hot-swap drive baysYesYes
Processor1 differ
Processor frequencyDiffers2 GHz2.6 GHz
Processor coresKnown for one2
Processor familyKnown for oneMarvell
Memory2 differ
Internal memoryDiffers1 GB2 GB
Flash memoryDiffers16 MB512 MB
Internal memory typeKnown for oneDDR3
Networkidentical
Ethernet LANYesYes
Ethernet LAN data rates10,100,1000 Mbit/s10,100,1000 Mbit/s
Wi-FiNoNo
DHCP clientYesYes
DHCP serverYesYes
Jumbo frames supportYesYes
iSCSI supportYesYes
Wake-on-LAN readyYesYes
Supported network protocolsCIFS/SMB, AFP (v3.3), NFS(v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, SMSCCIFS/SMB, AFP (v3.3), NFS(v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, SMSC
Ports & interfaces2 differ
Ethernet LAN (RJ-45) portsDiffers24
USB 2.0 ports quantityDiffers23
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity22
Fiber ports quantity00
eSATA ports quantity22
HDMI ports quantityKnown for one1
Design4 differ
Chassis typeDiffersRack (1U)Tower
Cooling typeActiveActive
Product colourDiffersBlackBlack, Metallic
Number of fansDiffers1 fan(s)2 fan(s)
Fan diameterDiffers4 cm9 cm
Drive bay lockingKnown for oneYes
LED indicatorsHDD, LAN, Status, USBHDD, LAN, Status, USB
Built-in displayKnown for oneYes
Display typeKnown for oneLCD
Cable lock slotYesYes
Cable lock slot typeKensingtonKensington
Performance1 differ
TypeNASNAS
Device classSmall & Medium BusinessSmall & Medium Business
Backup functionYesYes
Multilingual supportYesYes
On/off switchYesYes
Reset buttonYesYes
Security algorithmsDiffersHTTPS, SSH, SSL/TLSHTTPS, SSH
BuzzerKnown for oneYes
Number of usersKnown for one4096 user(s)
Softwareidentical
Windows operating systems supportedWindows 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, Windows 8 Enterprise, Windows 8 Enterprise x64, WinWindows 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, Windows 8 Enterprise, Windows 8 Enterprise x64, Win
Linux operating systems supportedYesYes
Mac operating systems supportedYesYes
Server operating systems supportedWindows Server 2003, Windows Server 2003 R2, Windows Server 2003 x64, Windows Server 2008, Windows Server 2008 R2, Windows Server 2008 x64, Windows Server 2012, Windows Server 2012 R2Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 x64, Windows Server 2008, Windows Server 2008 R2, Windows Server 2008 x64, Windows Server 2012, Windows Server 2012 R2
Other operating systems supportedAndroidAndroid
Operating system installedKnown for oneQNAP Turbo System
Poweridentical
Power supply locationBuilt-inBuilt-in
Power supply unit (PSU) capacity250 W250 W
Number of power supply units11
Power consumption (off)Known for one1 W
AC input voltage100-240 V100-240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Fan voltage12 V12 V
Weight & dimensions3 differ
WidthDiffers439 mm257 mm
DepthDiffers483 mm235 mm
HeightDiffers44 mm175 mm
Packaging contentidentical
External power adapterNoNo
Cables includedAC, LAN (RJ-45)AC, LAN (RJ-45)
Quick installation guideYesYes
Operational conditions1 differ
Operating temperature (T-T)Differs0 - 40 °C0 - 35 °C
Operating relative humidity (H-H)5 - 95%5 - 95%

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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