The QNAP TDS-16489U-SA2 NAS Rack (3U) Intel Xeon E5 v3 E5-2620V3 DDR4 has 0.9 GHz more processor frequency than the QNAP TS-1253BU-RP-4G NAS Rack (2U) Intel® Celeron® J3455 (2.4 GHz vs 1.5 GHz). The QNAP TDS-16489U-SA2 NAS Rack (3U) Intel Xeon E5 v3 E5-2620V3 DDR4 has 0.9 GHz more processor boost frequency than the QNAP TS-1253BU-RP-4G NAS Rack (2U) Intel® Celeron® J3455 (3.2 GHz vs 2.3 GHz). The QNAP TDS-16489U-SA2 NAS Rack (3U) Intel Xeon E5 v3 E5-2620V3 DDR4 has 2 more processor cores than the QNAP TS-1253BU-RP-4G NAS Rack (2U) Intel® Celeron® J3455 (6 vs 4). Only the QNAP TDS-16489U-SA2 NAS Rack (3U) Intel Xeon E5 v3 E5-2620V3 DDR4 has ECC supported by processor. Only the QNAP TS-1253BU-RP-4G NAS Rack (2U) Intel® Celeron® J3455 has Conflict-Free processor.
On-board graphics card base frequencyKnown for one
—Unknown — not stated by the source
250 MHz
On-board graphics card burst frequencyKnown for one
—Unknown — not stated by the source
750 MHz
On-board graphics card dynamic frequency (max)Known for one
—Unknown — not stated by the source
750 MHz
Maximum on-board graphics card memoryKnown for one
—Unknown — not stated by the source
8 GB
Number of displays supported (on-board graphics)Known for one
—Unknown — not stated by the source
3
Design5 differ
Chassis typeDiffers
Rack (3U)
Rack (2U)
Cooling type
Active
Active
Product colourDiffers
Black, Grey
Black
Number of fansDiffers
4 fan(s)
2 fan(s)
Fan diameterDiffers
6 cm
7 cm
LED indicatorsDiffers
Yes
HDD, LAN, System, USB
Drive bay lockingKnown for one
No
—Unknown — not stated by the source
Built-in displayKnown for one
No
—Unknown — not stated by the source
Cable lock slotKnown for one
No
—Unknown — not stated by the source
Performance3 differ
Type
NAS
NAS
Device class
Small & Medium Business
Small & Medium Business
Backup function
Yes
Yes
Backup features
Cloud, iSCSI LUN
Cloud, iSCSI LUN
BuzzerKnown for one
—Unknown — not stated by the source
Yes
Multilingual support
Yes
Yes
Noise levelDiffers
37.8 dB
33.2 dB
Share folder access right management
Yes
Yes
Web-based management
Yes
Yes
Access Control List (ACL)
Yes
Yes
Browser supportedDiffers
Microsoft Internet Explorer 10+, Mozilla Firefox 8+, Apple Safari 4+, Google Chrome
Microsoft Internet Explorer 10+, Gaoogle Chrome, Apple Safari 7+, Mozilla Firefox
Built-in FTP server
Yes
Yes
Built-in iTunes server
Yes
Yes
On/off switch
Yes
Yes
Reset button
Yes
Yes
S.M.A.R.T. support
Yes
Yes
Security algorithmsDiffers
256-bit AES, FIPS 140-2, HTTPS, SSH, SSL/TLS
256-bit AES, FIPS 140-2, HTTPS, SNMP, SNMPv3, SSH, SSL/TLS
System log
Yes
Yes
Built-in optical driveKnown for one
No
—Unknown — not stated by the source
Card reader integratedKnown for one
No
—Unknown — not stated by the source
Built-in UPnP AV media serverKnown for one
Yes
—Unknown — not stated by the source
Hot spareKnown for one
Yes
—Unknown — not stated by the source
MAC address filteringKnown for one
Yes
—Unknown — not stated by the source
Password authenticationKnown for one
Yes
—Unknown — not stated by the source
Share folderKnown for one
CIFS/SMB
—Unknown — not stated by the source
Software3 differ
Operating system installed
QNAP Turbo System
QNAP Turbo System
Operating system versionDiffers
4.2
4.3
Windows operating systems supportedDiffers
Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 8 Enterprise, Windows 8 Enterprise x64
Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 Pro, Windows 10 Pro x64, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64,
Linux operating systems supported
Yes
Yes
Mac operating systems supportedDiffers
Yes
Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Server operating systems supportedKnown for one
Windows Server 2003, Windows Server 2003 R2, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2
