The QNAP TS-451A versus the QNAP TS-453A – NAS+DAS vs NAS+Dual OS Faceoff

USB Direct Attached ability vs Linux based Dual OS – the QNAP NAS comparison with TS-453A or TS-451A

Interested in buying a QNAP TS-453A NAS or the QNAP TS-451A NAS but cannot decide? What is more important to you, that wonderfully new Directed Attached Storage ability via USB 3.0? Or the fantastically innovative Linux Dual OS of the TS-453A via twin HDMI ports? There are any number of reasons to buy either of these NAS devices, but what we want to know is which unit is right for YOU! Robbie at SPANTV took the time to make a NAS comparison on these two devices in the hope to answer which of these Network Attached Storage servers is best suited for your home or business needs.


  The QNAP TS-453A

qnap ts-453a perfect plex surveillance and vm nas featuring 4k transcoding

£331 ex.VAT and HDD media


The QNAP TS-451A

The QNAP TS-451A USB 3.0 DAS and NAS Walkthrough and Talkthrough with SPAN 4

£332 ex.VAT and HDD media


OS Embedded Linux Embedded Linux
CPU Quad-Core Intel® Celeron® N3150 1.6GHz (Burst up to 2.08GHz) Dual-core Intel® Celeron® N3060 1.6GHz (Up to 2.48GHz)
Memory (RAM) 8GB / 4GB SO-DIMM DDR3L-1600 4GB / 2GB SO-DIMM DDR3L-1600
Number of RAM Slots 2 (Max 8 GB) 2 (Max 8 GB)
Max. number of HDDs/SSDs 2x 2.5″ or 3.5″ SATA 6Gb/s, 3Gb/s 2x 2.5″ or 3.5″ SATA 6Gb/s, 3Gb/s
Hot-Swappable HDD Tray Yes Yes
Expansion Enclosure Support 1 (UX-800P, UX-500P) 1 (UX-800P, UX-500P)
Gigabit LAN Ports 4 2
USB 3.0 4 3
USB QuickAccess 1 x USB 3.0 Micro B
IR Sensor (Infrared Receiver) Yes (RM-IR002, RM-IR003, & MCE) V (RM-IR002 & MCE)
Free Remote Control V (RM-IR002) V (RM-IR002)
SD Card Slot 1
HDMI 2 (1x 4K) 1 (4K)
Power Consumption: HDD Sleep Mode (W) 18.86 12.1
Power Consumption: Operating Mode, Typical (W) 32.35 27
Power off (S3 Sleep) 1.61 0.65
Noise Level dB(A) 19.7 18.1
Seq. Write, 64KB (MB/s)

(Link Aggregation)

Write 436 MB/s Write 213.4 MB/s
Seq. Read, 64KB (MB/s)

(Link Aggregation)

Read 414 MB/s Read 192.13 MB/s
File System: Internal Hard Drive EXT4 EXT4
Max Number of Cameras Default: 4, Max.: 40 (optional license purchase) Default: 2, Max.: 32 (optional license purchase)
Mobile Surveillance App for iOS & Android Vmobile Vmobile
Max USB Webcam for liveview or snapshot (QUSBCam App) 2 (up to 1280×960, 5FPS) 2 (up to 1280×960, 5FPS)
Virtualization Station

(Windows , Android, Linux VMs)

Yes Yes
Antivirus Yes (Optional McAfee Antivirus available) V (Optional McAfee Antivirus available)
3rd Party Cloud Storage Amazon S3/Glacier, ElephantDrive, Google Drive, Microsoft Azure Amazon S3/Glacier, ElephantDrive, Google Drive, Microsoft Azure
Mobile Apps for iOS & Android Qfile, Qmanager, Qphoto, Qmusic, Qnotes, VMobile, Vcam, Qremote Qfile, Qmanager, Qphoto, Qmusic, Qnotes, VMobile, Vcam, Qremote

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Are you interested in all things data storage. Perhaps you are a Mac users and want to know if this NAS, DAS, Cable or Drive will work for you? That is where SPAN and Robbie can help. For over 20 years SPAN has been helping companies and individuals worldwide with their digital archive and storage needs. Alongside that Robbie (Robert Andrews if you want to be delightfully formal) has been spending the last few years keeping you up to date on all things data and won’t shut up about it!

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