QNAP SS-439 Pro Turbo NAS device
QNAP's first 2.5in NAS device has plenty of features but consumes a lot of power
- Small, lightning-fast transfer speeds, extensive feature set
- Expensive, some design issues, not as power-efficient as alternatives
QNAP's first 2.5in NAS device isn't as power efficient or compact as the Synology Disk Station DS409slim, but it offers great performance and features. Its storage capacity is limited compared to NAS devices that use 3.5in hard drives, but the SS-439 Pro Turbo NAS device is very fast.
Price$ 999.00 (AUD)
QNAP's SS-439 Pro Turbo is the company's first network-attached storage (NAS) device to use 2.5in hard drives. Powered by an Intel Atom processor, this four-bay NAS device is extremely fast, but doesn't offer the power efficiency or quiet operation of other 2.5in NAS devices.
The QNAP SS-439 Pro Turbo NAS is much smaller than NAS devices that use 3.5in hard drives but it still has an impressive array of connections: you get three USB ports, two eSATA ports and two Gigabit Ethernet ports that support failover and load balancing. You even get a VGA output port, which can be used to connect an LCD monitor to keep track of the NAS device's status.
The QNAP SS-439 Pro Turbo NAS has a metal chassis. The four drive caddies — also made of metal — are roughly the size of two 2.5in hard drives side by side, but each caddy only fits one drive. This makes the NAS device significantly larger than the Synology Disk Station DS409slim, which also takes 2.5in drives. We had difficulty inserting some 2.5in SATA 2 hard drives, with screw holes often failing to align properly and metal guides on the caddies proving too narrow to fit drives with slightly thicker cases. The metal grooves which lock the caddies in the chassis are too small to slide without fingernails, making them to difficult to unlock. These problems make it difficult to quickly replace a drive.
Once inserted, the hard drives can be formatted into RAID levels 0, 1, 5 and 6, as well as single and JBOD linear drive configurations. The SS-439 Pro Turbo NAS also supports 256-bit AES volume-based drive encryption; it doesn't offer password recovery. The largest 2.5in hard drives available offer 500GB of storage, making the SS-439 Pro Turbo NAS device's total storage capacity 2TB.
Data can be replicated remotely to rsync-compliant devices, and you can also schedule individual drives to backup to external hard drives formatted to NTFS, FAT, ext3 or ext4 file systems. The one-touch copy button can be configured to backup to or from the attached external hard drive.
QNAP's recently released 3.0 firmware is downloadable from its Web site, though our review unit had an earlier version. The new firmware revamps the Web-based interface, making it easier to use. Though the Cover Flow-like home page is slow and unnecessary, the administration interface and individual file and media browsers are significantly improved. The new firmware also allows you to format internal and external hard drives using the ext4 file system, which offers performance improvements and greater file size limits over ext3.
Media functionality includes an iTunes server and a DLNA-compliant UPnP server powered by TwonkyMedia. These worked well, though the iTunes server sometimes failed to work when there was a non-media file located in the designated "Qmultimedia" share. You can schedule BitTorrent, FTP and HTTP downloads, and the NAS device can also serve as a recording device for QNAP's surveillance products.
Synology's Disk Station DS409slim makes do with a 1.2GHz processor and 128MB of memory, but QNAP's SS-439 Pro Turbo NAS device boasts a significantly more powerful 1.6GHz Intel Atom CPU and 1GB of DDR2 memory. This does increase power consumption, however; configured with a Intel X25-M 32GB drive and two Solidata 32GB drives, the SS-439 Pro Turbo NAS consumed 20 Watts when idle; the DS409slim only consumed 11.5W using the same drives. The SS-439 Pro Turbo offers a slight improvement over larger NAS devices in this respect, as the two-bay QNAP TS-219 Turbo consumes 23W when fitted with two 3.5in hard drives.
We tested the NAS device by transferring files from our test PC, which runs a 300GB Western Digital VelociRaptor. In Intel's NAS Performance Toolkit, the NAS device streamed 720p high-definition footage at an average rate of 98.7 megabytes per second (MBps); this is one of the fastest speeds we have seen in a NAS device. It recorded the same footage at 90.7MBps, which means it has strong write performance.
We also conducted large and small file transfers to test the NAS device's capability in the real world. Using 20GB worth of 3-4GB files, the SS-439 Pro Turbo NAS device recorded a write speed of 67.1MBps, a read speed of 76.98MBps and a read/write speed of 38.3MBps. Using 3GB worth of 1MB files, it wrote at a rate of 33.7MBps, read at 48.4MBps, and performed a simultaneous read/write operation at a rate of 24MBps. These speeds are slightly slower than the eight-bay 3.5in TS-809 Pro Turbo, but are significantly faster than the Synology DS-409slim NAS device, which wrote same data at 23.3MBps and read it at 35.7MBps.
Thanks to a beefy processor and memory, QNAP's SS-439 Pro Turbo NAS device provides extremely fast file transfer speeds but consumes more electricity than some other 2.5in NAS devices. Provided you don't require more than 2TB of storage, this NAS device's extensive feature set and comprehensive connectivity make it a great alternative to larger 3.5in NAS devices for small businesses.
Follow PC World Australia on Twitter: @PCWorldAu
Join the newsletter!
Apple Watch Series 6
Amazon Echo Dot with Clock (4th Gen)
LiTMUS LAB Dakota Side Table
Bang and Olufsen Beosound Stage - Dolby Atmos Soundbar
Samsung Galaxy Z Fold2 5G
Toys for Boys
Sony Playstation 5
Bose SoundLink Revolve Bluetooth Speaker
Theragun PRO Percussive Therapy Device
WD_BLACK™ SN850 NVMe™ SSD
Sony WF-1000XM3 Wireless Noise Cancelling Headphones
Nakamichi Delta 100 3-Way Hi Fi Speaker System
ASUS ROG, ACRONYM partner for Special Edition Zephyrus G14
Philips Sonicare Diamond Clean 9000 Toothbrush
MSI Modern 14
Garmin vívofit® jr. 2
Fujiflim Instax Square SQ1
Fender Fullerton Ukele
Mario Kart Live: Home Circuit for Nintendo Switch
Lego Mindstorms Robot Inventor
Dickie Toy Remote Control Mega Crane Set
Teac 7 inch Swivel Screen Portable DVD Player
SunnyBunny Snowflakes 20 LED Solar Powered Fairy String
Kindle Paperwhite eReader (10th Gen)
MSI GE66 Dragonshield Limited Edition
Most Popular Reviews
- 1 Oppo Watch review: A masterclass in imitation
- 2 Google Pixel 5 Review: Soft Reboot
- 3 Google Pixel 4a review: The Goldilocks Google phone
- 4 Samsung Galaxy Note 20 Ultra 5G review: Wrong Number
- 5 LG NANO99 NanoCell 8K TV review: Prestige at a price
Latest News Articles
- Report: Apple’s 2021 roadmap might be its most ambitious yet
- Apple’s annual Black Friday sale starts Friday but you should probably skip it
- Macworld's December digital magazine: iPhone 12 and 12 Pro reviewed
- Google releases Chrome 87 with support for Apple silicon Macs
- iOS 14.3: Apple releases first beta to developers
PCW Evaluation Team
Ultimately this laptop has achieved everything I would hope for in a laptop for work, while fitting that into a form factor and weight that is remarkable.
This smart laptop was enjoyable to use and great to work on – creating content was super simple.
It really doesn’t get more “gaming laptop” than this.
As the Maserati or BMW of laptops, it would fit perfectly in the hands of a professional needing firepower under the hood, sophistication and class on the surface, and gaming prowess (sports mode if you will) in between.
The MSI PS63 is an amazing laptop and I would definitely consider buying one in the future.
This small mobile printer is exactly what I need for invoicing and other jobs such as sending fellow tradesman details or step-by-step instructions that I can easily print off from my phone or the Web.
- iPhone 12 Pro review: The iPhone that’s future proof
- Google Pixel 5 Review: Soft Reboot
- Oppo Watch review: A masterclass in imitation
- Everything you need to know about Smart TVs
- What's the difference between an Intel Core i3, i5 and i7?
- Laser vs. inkjet printers: which is better?