CONCLUSION

   There's a reason QNAP is amongst the top NAS manufacturers in the world and although the TurboNAS TS-420 is not an example of what they are capable of manufacturing in terms of performance (far from it really) still it proves that they can roll out a high quality, feature-rich yet cost-effective 4 bay NAS Server that can hold its own against similar solutions in the market. Performance aside the latest version of the QNAP Turbo Station improves on everything compared to the previous versions (prior to 4.0.0) since not only does the GUI look great but it's also a lot easier to navigate and offers more visual tools like the side resource monitor, the side start bar and the top drop down menus. True as we've mentioned in the review the TS-420 is not the perfect NAS and the two things that bothered me most was the lack of an video out (VGA/HDMI) and the fact that it can't reproduce MKV files and although the same applies with every NAS out there that doesn't have an X86/X64 compatible CPU under the hood (most can stream using the VLC plugin however and the power of your systems CPU) that doesn't change the outcome.

   The TurboNAS TS-420 NAS Server by QNAP currently retails for just USD429 inside the USA (Amazon.com) and 330Euros inside the EU (Amazon.co.uk) a price tag which lands it USD70/120Euros away (cheaper) from the slightly better TS-421 model. Overall we can say that the TurboNAS TS-420 is the ideal solution for people looking for a 4 bay NAS with plenty of features and good performance but don't want to spend much in the process. On the other hand however for people who know that they will never use more than 2 drives i strongly recommend going to the slightly cheaper (yet faster) and smaller TurboNAS TS-221 which we reviewed not too long ago since we believe that it offers a better bang for your buck. Good performance, plenty of features, great build quality and an equally good price tag are the reasons as to why we give the TurboNAS TS-420 by QNAP our Golden Award.

PROS

- Excellent Build Quality
- Good Performance
- Features
- 4 USB Ports (2xUSB 3.0 / 2xUSB 2.0)
- 2 eSATA Ports
- 2 Gigabit Ethernet Ports
- Single/JBOD/RAID0/1/5/6/10/5+ Hot Spare Support
- QTS 4.0 OS
- IP Camera Model Support
- Android/iOS Apps
- Power Consumption
- Noise Levels
- Price (For Some) 

CONS

- No Video Output (VGA/HDMI)
- No Support For MKV File Decoding (Much Like Most NAS Servers)