QNAP Q35s Backup Enclosure Review

I’m not the biggest fan of external HD enclosures. It seems that the speed of transfer is always too slow and the heat build-up causes you to lose data right up until the hard drive finally just dies. So when I received the Qnap QBack-35S, I was naturally wary of sticking one of my precious HD’s in there. Eventually though, I realized that it would have to be done. None of my friends were willing to let me gut their computers to borrow a hard drive.

First off, let’s have a little background on our subject. The QNAP QBack-35S Automatic File Backup Station is an encrypted data backup center designed for people who want a little more security for their data. Namely, an AES 256-bit data encryption.  QBack-35S is a 3.5” single SATA drive external enclosure which is compatible with major hard disk drive brands. It supports up to 1TB capacity, USB 2.0, and eSATA high-speed data transfer. It offers hands-free and real-time automatic file backup along with Email backup. Four backup modes are provided including auto-sync backup, instant backup, one-touch-button backup, and schedule backup.

 

QBack-35S main features:

  • Automatic file backup (one-way synchronization) through the powerful QBack auto-backup software installed on PC/notebook.
  • Multiple choices of backup modes:
    Auto-Backup (one-way synchronization)
    Schedule backup
    Instant backup
    One-Touch-Button (OTB) backup (For QBack Software with USB connection only).
  • Incremental backup feature for all modes, only modified files and newly created files on computer will be backed up to save time.
  • Smart detection of backup file size and available storage capacity on the disk to ensure successful backup.
  • Backup all files in computer including all mails in Outlook, Outlook Express, Windows Mail (for Vista), My Documents, Favorites, Fonts, and Desktop.
  • Advanced data encryption technology (AES 256-bit) to make sure the backup data is securely protected at all times.
  • Hard disk can be partitioned into 2 disks: Public and Secure disks by Quick Install Wizard.
  • USB 2.0 and eSATA interfaces for faster backup file transfer rate.
  • Support 3.5″ SATA HDD up to 1TB (not included).
  • Support Windows Vista (32-bit)/ XP/ 2000/ Server 2003.
  • Convenient data restore to original paths.
  • Multilingual support: English, Traditional Chinese, Simplified Chinese, Japanese, Korean, French, German, Italian, Spanish, Russia

Hardware Spec Software Spec
  • Hard Disk 3.5″ SATA HDD, up to 1TB ( the standard package is shipped without HDD )
  • USB 2.0 & eSATA
  • LED Indicators Power: Blue (when the device is on)
  • HDD: Blink in Orange (when accessing hard disk)
  • One Touch Button One Touch Backup Button (For USB Only)
  • Rear I/O Ports 1 x eSATA Port / 1 x USB B Type Connector/
  • 1 x DC-in Jack
  • Power Supply Input: 100-240V AC, 47-63Hz
  • Output: DC 5V/ 2A, 12V/ 2A
  • Dimensions 210(D) x 123(W) x 38.75(H)mm
  • Weight Net Weight: 0.57Kg
  • Gross Weight: 1.48Kg
  • Operation Temperature 0~40°C
  • Operation Humidity 0~85% R.H.
  • Supporting System Windows 2000, XP, Server 2003, Vista(32-bit)
  • Automatic Backup Software Expert mode
  • Auto-Backup
  • Schedule Backup
  • Instant Backup & Restore
  • Express mode: Express backup and restore
  • AES 256-bit data encryption
  • Incremental backup
  • Secure disk management
  • Q-Mail Archiving
  • Q-Filter
  • Event management
  • Supporting Languages English, Traditional Chinese, Simplified Chinese, Japanese, Korean, French, German, Italian, Spanish, Russian
  • Quick Install Wizard Clear step-by-step configuration
  • Can create disk partition (Public/ Secure disk)
  • Set password to protect data

The QBack-35S is very pleasing to the eyes. It has a sleek titanium shell with a gun-metal finish. The front is basically plain black plastic, with the logo at the top and two lights at the bottom for power and hard drive usage. The back is all business as well, with an OTB (One Touch Backup) button, USB connector, eSATA connector, Power connector, and last but not least a power switch. To finish it off, a nice little black stand holds the enclosure upright. Low profile, small, and easily transportable.

The package comes with a Quick Installation Guide, CD-ROM, Power Adaptor, Power Cord, six flat-head mounting screws, eSATA cable, an eSATA to SATA cable with mounting bracked, a USB 2.0 cable, and a glossy plastic stand.


I slapped an 82 GB Seagate SATA 3.5” hard drive in and proceeded to hook it up to my computer. It was a relatively easy install. The only thing I wasn’t too fond of was the large, bulky power cord. I finished installing and ran the software.

The system used to test this hardware is as follows:

  • AMD Sempron 3200+ processor
  • 2GB system RAM
  • 500GB Seagate HD
  • NVidia GForce 5500 graphics card.

The software is pretty straight forward, even in Expert Mode. Just set the things you want backed up, set where you want it to go, and presto! Although I found out early on that the software is pretty much useless without unless you are hooked up via USB. So before I switched to USB for a test, I checked out the transfer speeds of the QBack in eSATA mode. I used HDTach for the 8mb and 32mb bench tests. To my enjoyment (and amazement, to be honest) I was hitting speeds only a margin less than a direct SATA hookup would provide. Averaging at 50.3mb/s.

So I opted for one final eSATA test before I switched over to USB. I prepared 46.4 GB of raw video data, totaling 128 files, and copied them over to the QBack directly via drag and drop. I got great speeds, with files being fully transferred in just over 28 minutes. Satisfied with my results, I switched to the USB 2.0 for a test drive.

eSATA Transfer Rate

USB Transfer Rate

Once again, I bench tested at 8mb and 32mb with HDTach. Now I was getting the results I am used to. The average speed for a USB 2.0 connection was 19.2mb/s. So with a little hesitation, I proceeded to transfer the raw video files over once again. 57 minutes later, the transfer was complete. Now don’t get me wrong, USB is one of the most innovative connections to come into the world of computers, making damned near everything hot-swappable. But when it comes to large file backups, I would opt for the eSATA route.

In closing, the QNAP QBack-35S was quite impressive when it came to eSATA data transfer rates, and when it came to backing things up with the ultimate in flexibility. It handled heat dissipation like a pro, and I got the speed I was missing when USB was the standard for accessing files on an external hard drive. Aside from little things that I found personally irritating, like only being able to use the wide range of features in the QBack software in USB mode (Editor: both eSATA and USB cables must be connected to get full functionality), this is a product I would recommend to the average consumer who is simply looking for a way to back up their data safely and securely. For those who have large amounts of data to transfer in a hurry, you’ll have to give up security for serenity.

REPORT CARD : QNAP QS-35 External Backup
category rating comments
Quality 5 Very well built
Innovation 3 Just an external enclosure with software
Performance 4 Good transfer rates for an external enclosure
Installation 4 Both eSATA and USB cables must be connected to access all software features.
Value 2 Other external enclosures are cheaper, and even come with backup software
FINAL VERDICT: 4 out of 5 stars

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