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Product comparison · 2 nas & storage servers

Lenovo EMC px4-400r + 4x ST3000VX000 vs QNAP TS-851 + 8X ST2000NC000

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  • 41specifications compared
  • 22differ
  • 19identical
  • 49known for one product only

Key differences

  • Total installed storage capacity
    • 12 TB
    • 16 TB
  • Number of storage drives installed
    • 4
    • 8
  • Number of storage drives supported
    • 4
    • 8
  • Storage drive capacity
    • 3 TB
    • 2 TB
  • Storage drive size
    • 3.5"
    • 2.5/3.5"
  • RAID levels
    • 0, 1, 5, 10
    • 0, 1, 5, 6, 10, JBOD
  • Processor family
    • Intel Atom®
    • Intel® Celeron®
  • Processor frequency
    • 2.13 GHz
    • 2.41 GHz

Side by side

Differences highlightedShow differences only
90 specifications
A

Lenovo

Lenovo EMC px4-400r + 4x ST3000VX000View product
B

QNAP

TS-851 + 8X ST2000NC000View product
Storage7 differ
Storage drives installedYesYes
Total installed storage capacityDiffers12 TB16 TB
Number of storage drives installedDiffers48
Number of storage drives supportedDiffers48
Installed storage drive typeHDDHDD
Supported storage drive typesHDD & SSDHDD & SSD
Storage drive capacityDiffers3 TB2 TB
Storage drive interfaceDiffersSerial ATA IIISerial ATA II, Serial ATA III
Storage drive sizeDiffers3.5"2.5/3.5"
RAID supportYesYes
RAID levelsDiffers0, 1, 5, 100, 1, 5, 6, 10, JBOD
Hot-swap drive baysYesYes
Supported file systemsKnown for oneext3, ext4, FAT32, HFS+, NTFS
HDD speedKnown for one7200 RPM
Maximum supported storage capacityKnown for one16 TB
Processor2 differ
Processor familyDiffersIntel Atom®Intel® Celeron®
Processor frequencyDiffers2.13 GHz2.41 GHz
Processor cores22
Processor modelKnown for oneD2701
L2 cacheKnown for one1 MB
Memory2 differ
Internal memoryDiffers2 GB1 GB
Internal memory typeDiffersDDR3DDR3L
Maximum RAM supportedKnown for one8 GB
Memory slotsKnown for one2
Flash memoryKnown for one512 MB
Network1 differ
Ethernet LANYesYes
Ethernet LAN data rates10,100,1000 Mbit/s10,100,1000 Mbit/s
Wi-FiNoNo
DHCP clientKnown for oneYes
DHCP serverKnown for oneYes
Jumbo frames supportKnown for oneYes
iSCSI supportYesYes
Wake-on-LAN readyYesYes
Supported network protocolsDiffersCIFS/SMB/Rally (Microsoft), NFS (Linux/UNIX), AFP/Bonjour (Apple), FTP, SFTP, TFTP, HTTP, HTTPS, WebDAV, Windows DFS, SNMPCIFS/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) ports22
USB 2.0 ports quantityDiffers42
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers13
Fiber ports quantity00
HDMI ports quantity11
eSATA ports quantityKnown for one1
Design2 differ
Chassis typeDiffersRack (1U)Tower
Cooling typeKnown for oneActive
Product colourDiffersBlack, SilverBlack
Number of fansKnown for one2 fan(s)
Fan diameterKnown for one12 cm
LED indicatorsKnown for oneYes
Cable lock slotKnown for oneYes
Cable lock slot typeKnown for oneKensington
Performance1 differ
TypeNASNAS
Device classDiffersSmall & Medium BusinessHome & Home Office
Backup functionYesYes
Management protocolsKnown for oneSNMP, Telnet
Web-based managementKnown for oneYes
Access Control List (ACL)Known for oneYes
On/off switchKnown for oneYes
Reset buttonKnown for oneYes
Security algorithmsKnown for oneFIPS 140-2, HTTPS, SSH, SSL/TLS
Backup featuresKnown for oneCloud, iSCSI LUN
Multilingual supportKnown for oneYes
Number of usersKnown for one75 user(s)
Noise levelKnown for one42.5 dB
Softwareidentical
Operating system installedKnown for oneQNAP Turbo System
Operating system versionKnown for one4.1
Windows operating systems supportedKnown for oneYes
Linux operating systems supportedKnown for oneYes
Mac operating systems supportedKnown for oneMac OS X 10.10 Yosemite, 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
Poweridentical
Power supply locationKnown for oneBuilt-in
Power supply unit (PSU) capacityKnown for one350 W
Number of power supply unitsKnown for one1
AC input voltage100-240 V100-240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Fan voltageKnown for one12 V
Power consumption (max)Known for one73.72 W
Weight & dimensions3 differ
WidthDiffers520.7 mm298.2 mm
DepthDiffers435 mm235.4 mm
HeightDiffers43.9 mm185.2 mm
WeightKnown for one10 kg
Package widthKnown for one870 mm
Package depthKnown for one599.9 mm
Package heightKnown for one224 mm
Package weightKnown for one17.2 kg
Packaging contentidentical
Cables includedAC, LAN (RJ-45)AC, LAN (RJ-45)
Quick installation guideKnown for oneYes
Quick start guideKnown for oneYes
Operational conditions2 differ
Operating temperature (T-T)Differs10 - 40 °C0 - 40 °C
Operating relative humidity (H-H)Differs8 - 85%5 - 95%
Operating altitudeKnown for one0 - 2286 m
Storage relative humidity (H-H)Known for one5 - 95%
Storage temperature (T-T)Known for one-40 - 60 °C
Other featuresidentical
Digital Living Network Alliance (DLNA) certifiedKnown for oneYes

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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