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Product comparison · 2 nas & storage servers

QNAP TS-851 + 2X 0S03674 vs QNAP TS-853S PRO + 2X 0S03674

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  • 60specifications compared
  • 9differ
  • 51identical
  • 18known for one product only

Key differences

  • Processor frequency
    • 2.41 GHz
    • 2 GHz
  • Internal memory type
    • DDR3L
    • DDR3
  • Flash memory
    • 512 MB
    • 16 MB
  • Ethernet LAN (RJ-45) ports
    • 2
    • 4
  • Chassis type
    • Tower
    • Desktop
  • Device class
    • Home & Home Office
    • Small & Medium Business
  • Width
    • 298.2 mm
    • 185.2 mm
  • Depth
    • 235.4 mm
    • 298.2 mm

Side by side

Differences highlightedShow differences only
78 specifications
A

QNAP

TS-851 + 2X 0S03674View product
B

QNAP

TS-853S PRO + 2X 0S03674View product
Storageidentical
Storage drives installedYesYes
Total installed storage capacity24 TB24 TB
Number of storage drives installed88
Number of storage drives supported88
Installed storage drive typeHDDHDD
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"
Maximum supported storage capacityKnown for one3000 TB
RAID supportYesYes
RAID levels0, 1, 5, 6, 10, JBOD0, 1, 5, 6, 10, JBOD
Hot-swap drive baysYesYes
Storage drive capacityKnown for one3 TB
Supported file systemsKnown for oneext3, ext4, FAT32, HFS+, NTFS
Processor1 differ
Processor familyIntel® Celeron®Intel® Celeron®
Processor frequencyDiffers2.41 GHz2 GHz
Processor cores22
Memory2 differ
Internal memory1 GB1 GB
Internal memory typeDiffersDDR3LDDR3
Flash memoryDiffers512 MB16 MB
Maximum RAM supportedKnown for one8 GB
Memory slotsKnown for one2
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 & interfaces1 differ
Ethernet LAN (RJ-45) portsDiffers24
USB 2.0 ports quantity22
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity33
Fiber ports quantity00
HDMI ports quantity11
Design1 differ
Chassis typeDiffersTowerDesktop
Cooling typeActiveActive
Product colourBlackBlack
Number of fans2 fan(s)2 fan(s)
Fan diameter12 cm12 cm
Cable lock slotYesYes
Cable lock slot typeKensingtonKensington
LED indicatorsKnown for oneYes
Performance1 differ
TypeNASNAS
Device classDiffersHome & Home OfficeSmall & Medium Business
Backup functionYesYes
Backup featuresKnown for oneCloud, iSCSI LUN
BuzzerKnown for oneYes
Multilingual supportKnown for oneYes
Number of usersKnown for one4096 user(s)
Web-based managementYesYes
Access Control List (ACL)YesYes
MAC address filteringKnown for oneYes
On/off switchYesYes
Reset buttonYesYes
Management protocolsKnown for oneSNMP, Telnet
Security algorithmsKnown for oneFIPS 140-2, HTTPS, SSH, SSL/TLS
Softwareidentical
Operating system installedQNAP Turbo SystemQNAP Turbo System
Operating system version4.14.1
Windows operating systems supportedKnown for oneYes
Linux operating systems supportedKnown for oneYes
Mac operating systems supportedKnown for oneYes
Other operating systems supportedKnown for oneAndroid
Poweridentical
Power supply locationBuilt-inBuilt-in
Power supply unit (PSU) capacity350 W350 W
AC input voltage100-240 V100-240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Fan voltage12 V12 V
Number of power supply unitsKnown for one1
Weight & dimensions3 differ
WidthDiffers298.2 mm185.2 mm
DepthDiffers235.4 mm298.2 mm
HeightDiffers185.2 mm235 mm
Packaging contentidentical
Cables includedAC, LAN (RJ-45)AC, LAN (RJ-45)
Quick installation guideYesYes
Operational conditionsidentical
Operating temperature (T-T)0 - 40 °C0 - 40 °C
Operating relative humidity (H-H)5 - 95%5 - 95%
Other featuresidentical
Digital Living Network Alliance (DLNA) certifiedYesYes

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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