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 PC World newsletter!
Microsoft L5V-00027 Sculpt Ergonomic Keyboard Desktop
Smart LED Bulb LB130
Samsung portable 1TB T3 drive
Linksys AC5400 MU-MIMO Gigabit router
UE Boom 2 Bluetooth speaker
Everki ContemPRO Roll Top Laptop Backpack
Epson EcoTank Expression ET-2500
Google Daydream VR headset
Acer Swift 7
3SIXT Ultra HD Sports Action Camera
Logitech G403 Prodigy mouse
Huawei Mate 9
Lexar® JumpDrive® S45 USB 3.0 flash drive
Belkin MIXIT Metallic Lightning to USB Cable
Lexar® Portable SSD
Dell XPS 13 laptop
Garmin Fenix Chronos smartwatch
Lexar® JumpDrive® C20c USB Type-C flash drive
Dell Inspiron 5000 series 2-in-1
Lexar® Professional 1800x microSDHC™/microSDXC™ UHS-II cards
Surface Pro 4
HP Pavilion x360 13”
Blade 28 backpack by Arc’teryx
Audio-Technica ATH-ANC70 Noise Cancelling Headphones
HD Pan/Tilt Wi-Fi Camera with Night Vision NC450
Most Popular Reviews
- 1 Huawei Mate 9 full in-depth smartphone review
- 2 ZTE Axon 7 review: Is ZTE dumping old stock on Australia?
- 3 Oppo R9s smartphone full review
- 4 Finally! LG OLED TV 2016 range review
- 5 Huawei Nova Plus smartphone review
Latest News Articles
- IEEE sets new Ethernet standard that brings 5X the speed without disruptive cable changes
- New Skype Preview lets Windows 10 Insiders manage phone texts on PCs
- 5 ways Cisco could become an iPhone's best friend
- Skype is getting infused with conversational “bots”
- Anonabox promises a portable, streamlined way to use Tor to hide your online tracks
GGG Evaluation Team
I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.
First impression on unpacking the Q702 test unit was the solid feel and clean, minimalist styling.
For work use, Microsoft Word and Excel programs pre-installed on the device are adequate for preparing short documents.
The Fujitsu LifeBook UH574 allowed for great mobility without being obnoxiously heavy or clunky. Its twelve hours of battery life did not disappoint.
The screen was particularly good. It is bright and visible from most angles, however heat is an issue, particularly around the Windows button on the front, and on the back where the battery housing is located.
- How to quit Pokemon Go (or to start enjoying it again)
- Huawei Mate 9 full in-depth smartphone review
- Time to ditch Foxtel and the iQ3: How to replace Foxtel packages with cheaper alternatives
- What's the difference between an Intel Core i3, i5 and i7?
- Laser vs. inkjet printers: which is better?
- CCInfrastructure EngineerACT
- TPInformation Management SpecialistVIC
- CCMDM Consultant/DesignerVIC
- TPDeployment Specialist (DevOps)QLD
- CCData Centre Design Engineer - Data Centre - TelcoVIC
- FTTechnical Consultant MS Dynamics AXWA
- CCProject Manager - Adelaide basedVIC
- CCSenior Project Coordinator - Banking/Financial ServicesNSW
- TPProject Coordinator/Junior Project ManagerVIC
- FTTechnical Support RepresentativeNSW
- FTData AnalystQLD
- TPService Desk ManagerVIC
- FTSenior Full Stack .Net Developer - Internet of ThingsNSW
- TPOracle Consultant - CC&BSA
- FTMicrosoft Dynamics AX Technical ArchitectVIC
- FTDynamics AX Functional Consultant (Supply Chain Modules)NSW
- CCInfrastructure Test AnalystACT
- FTDatabase Modelling SpecialistACT
- CCLevel 2 Helpdesk Support (CISCO)QLD
- FTSAP BOBJ ConsultantACT
- FTPMO Coordinator-Permanent Opportunity-Education/Government Background EssentialNSW
- FT.Net DeveloperVIC
- CCSystem EngineerSA
- CCSenior Technical Business Analyst - ITMSP - Melbourne CBDVIC
- FTJunior / Entry Level IT role - Recent IT TAFE GraduateNSW