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Product comparison · 2 nas & storage servers

QNAP TS-451U NAS Rack (1U) Intel® Celeron® vs QNAP TS-853U NAS Rack (2U) Intel® Celeron®

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  • 70specifications compared
  • 18differ
  • 52identical
  • 10known for one product only

Key differences

  • Number of storage drives supported
    • 4
    • 8
  • Processor frequency
    • 2.41 GHz
    • 2 GHz
  • Processor cores
    • 2
    • 4
  • Internal memory
    • 1 GB
    • 4 GB
  • Ethernet LAN (RJ-45) ports
    • 2
    • 4
  • USB 2.0 ports quantity
    • 1
    • 0
  • Chassis type
    • Rack (1U)
    • Rack (2U)
  • Product colour
    • Black, Grey
    • Black

Side by side

Differences highlightedShow differences only
80 specifications
A

QNAP

TS-451U NAS Rack (1U) Intel® Celeron®

Model TS-451U

View product
B

QNAP

TS-853U NAS Rack (2U) Intel® Celeron®

Model TS-853U

View product
Storage3 differ
Storage drives installedNoNo
Total installed storage capacity0 TB0 TB
Number of storage drives installed00
Number of storage drives supportedDiffers48
Installed storage drive typeKnown for oneNo
Supported storage drive typesHDD & SSDHDD & SSD
Storage drive interfaceSerial ATA II, Serial ATA IIISerial ATA II, Serial ATA III
Storage drive size2.5/3.5"2.5/3.5"
RAID supportYesYes
RAID levelsDiffers0, 1, 5+S, 5, 6, 100, 10+S, 5+S, 1, 6, 5, 6+S, 10
Hot-swap drive baysYesYes
Supported file systemsDiffersFAT32, HFS+, NTFS, ext3, ext4ext3, ext4, FAT32, HFS+, NTFS
Processor2 differ
Processor familyIntel® Celeron®Intel® Celeron®
Processor frequencyDiffers2.41 GHz2 GHz
Processor coresDiffers24
Memory1 differ
Internal memoryDiffers1 GB4 GB
Internal memory typeDDR3LDDR3L
Maximum RAM supported8 GB8 GB
Memory slots22
Flash memory512 MB512 MB
Networkidentical
Ethernet LANYesYes
Ethernet LAN data rates10,100,1000 Mbit/s10,100,1000 Mbit/s
Wi-Fi standardsKnown for one802.11a, Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n)
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 quantityDiffers10
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity44
Fiber ports quantity00
HDMI ports quantity11
Design3 differ
Chassis typeDiffersRack (1U)Rack (2U)
Cooling typeActiveActive
Product colourDiffersBlack, GreyBlack
Housing materialKnown for oneMetal
Number of fans2 fan(s)2 fan(s)
Fan diameterDiffers4 cm7 cm
Drive bay lockingYesYes
LED indicatorsYesYes
Built-in displayNoNo
Performance2 differ
TypeNASNAS
Device classDiffersHome & Home OfficeSmall & Medium Business
Backup functionYesYes
Backup featuresCloud, iSCSI LUNCloud, iSCSI LUN
BuzzerYesYes
Multilingual supportYesYes
Built-in optical driveNoNo
Card reader integratedNoNo
Management protocolsSNMP v2 & v3SNMP v2 & v3
Web-based managementYesYes
Access Control List (ACL)YesYes
On/off switchKnown for oneYes
Reset buttonYesYes
Security algorithmsDiffers256-bit AES, FIPS 140-2, HTTPS, SSH, SSL/TLS128-bit AES, 256-bit AES, FIPS 140-2, HTTPS, MSCHAPv2, SSH, SSL/TLS
Softwareidentical
Operating system installedQNAP Turbo SystemQNAP Turbo System
Operating system version4.14.1
Windows operating systems supportedYesYes
Linux operating systems supportedYesYes
Mac operating systems supportedYesYes
Power1 differ
Power supply unit (PSU) capacity250 W250 W
Number of power supply unitsKnown for one1
Redundant power supply (RPS) supportDiffersYesNo
AC input voltage100-240 V100-240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Fan voltage12 V12 V
Weight & dimensions4 differ
WidthDiffers439 mm482 mm
DepthDiffers499 mm534 mm
HeightDiffers44 mm89 mm
WeightKnown for one11 kg
Package weightDiffers11.6 kg19.3 kg
Operational conditionsidentical
Operating temperature (T-T)0 - 40 °C0 - 40 °C
Operating relative humidity (H-H)0 - 95%0 - 95%
Other featuresidentical
Digital Living Network Alliance (DLNA) certifiedYesYes
Power managementKnown for oneYes
Packaging contentidentical
External power adapterKnown for oneNo
Cables includedKnown for oneLAN (RJ-45)
Quick installation guideKnown 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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