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8.8 out of 10


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Reviews and Problems with QNAP TS-421

Showing 1-10 of 11
Overall 10

QNAP TS-421U 4-bay Customizable 1U Rackmount NAS

15 February 2014
Overall 10

QNAP TS-421 4-bay Customizable Turbo NAS

15 February 2014
Overall 9

QNAP TS-421 & QTS 4.0

26 July 2013
  • Summary: The TS-421 is essentially an upgraded TS-419P II with more RAM, which is the main reason behind the minimal price difference. It may seem like a small difference, but I assure you that its increased amount of RAM plays a key role in many of its functions and the new windowed QTS 4.0 firmware runing smoothly. Speaking of the new QTS 4.0, I have only one thing to say: It is awesome!
  • Pros: New QTS 4.0 is awesome!, Performance with USB 3.0 external storage devices, Very low power consumption, Silent operation, Tons of features, Quality construction, Support for four hot-swap disks, Supports all popular RAID levels, Dual Gigabit ports (with LACP support), Two USB 3.0 ports, LCD display boosts usability, Lots of optional application packages, Interactivity with smartphones through several well-designed apps, myQNAPcloud service
  • Cons: Price is on the high side, Not so fast in RAID 6 and RAID 5, CPU struggles to cope with heavy data throughput from multiple clients, Long boot/shut-down time, The HDD trays are not numbered, Should have an option for automatic media scanning deactivation when CPU load is increased, Short warranty
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Qnap TS-421

17 May 2013
  • Conclusion: The TS-421 NAS has been given the task of introducing the world to Qnap's refreshed operating system, QTS 4.0. It's both a privilege and a burden, as though QTS 4.0 has plenty going for it, Qnap's rapid product launch cycle leaves the TS-421 sat in the midst of half-a-dozen similar alternatives.
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Overall 7

Expert Review

PC Advisor
25 August 2013
  • Excerpt: If it's affordable four-bay NAS storage you seek, QNAP has two new models to add to your shortlist. The QNAP TS-420 and TS-421 take the familiar and sturdy QNAP metal chassis, with only minimal trimming in internal specifications to hit budget. (See Group test: What's the best NAS drive ?
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Expert Review

27 April 2014
  • Summary: Accessible pour environ 450€, un environnement logiciel complet et un bon silence, soit environ le même prix que le Thecus N4560 ; le WD, quant à lui, est moins chère de 50€, et nous verrons ce que donne le Synology DS414 prochainement.
  • Pros: Consommation, Silence, Envirionnement logiciel
  • Cons: Performances, Temps de mise en place
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Externe harddisk - Qnap TS-221 en TS-421 NAS-servers

7 September 2013
  • Conclusion: Qnap Systems heeft met de TS-221 een veelzijdige en geavanceerde NAS-server voor thuisgebruik op de markt gebracht. De Qnap TS-221 is gemakkelijk in gebruik, snel en herbergt tal van professionele mogelijkheden om digitale content veilig op te slaan, te beheren, te back-uppen en via de ingebouwde webserver functionaliteit aan derden beschikbaar te stellen. De Qnap TS-221 kost circa € 299,- (exclusief harddisks).
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Qnap TS-421 & Asustor AS-304T

59 Hardware
30 August 2013
  • Summary: Deux NAS quatre baies dédiés aux particuliers et aux contenus multimédia s'affrontent pour un combat sans merci: le Qnap TS-421 et le Asustor AS-304T.
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Test: QNAP TS421

6 July 2013
Overall 9

QNAP TS-421: Il NAS cambia "volto"

5 July 2013
  • Excerpt: Quest'oggi la redazione di XtremeHardware vi propone in test un nuovo NAS introdotto sul mercato da QNAP; il modello TS-421 dotato i 4 bay. In questo articolo ne approfitteremo per mostrarvi la videorecensione del nuovo sistema operativo QTS 4.0, che introduce importanti novità a livello software nei NAS QNAP. Buona lettura, e visione!
  • Pros: Numero elevato di servizi e protocolli, Hot Swap, eSATA e USB 3.0, Consumi ridotti, Buone prestazioni, Buone performance in Link Aggregation, QTS 4.0
  • Cons: Mancanza lettore schede SD., Mancanza AES 256-bit
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