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High-performance Turbo vNAS
At a glance
ProductQNAP High-performance Turbo vNAS (TVS-471-i3-4G)   [Website]
SummaryFour-bay dual-core Intel Core i3 powered SATA NAS with quad Gigabit LAN, USB 3.0 and HDMI ports. 10GbE & 4x1GbE PCIe expansion options via two PCIe slots
Pros• SSD Cache option
• 4 built-in Gigabit Ethernet Ports
• Two PCIe Expansion ports for additional 4 GB or 4 10GbE ports
• Supports hardware accelerated transcoding and playback of 4K videos
• Compatible with Citrix, Microsoft and VMWare virtualization
Cons• Mucho buckos

Typical Price: $799  Buy From Amazon


In January, QNAP launched the TVS-x71 Series Turbo vNAS. Aimed at the top end of the SMB market, the TVS-x71 series consists of four, six and eight bay models available with numerous options with processors including Pentium, Core i3, Core i5 and core i7 processors.

These high-end NASes are designed to operate multiple virtual machines using QNAP's Virtualization Station, and can transcode videos either on the fly or offline. With built-in Intel HD graphics, the TVS-x71 NASes are 4K UHD ready and can stream video from the built-in HDMI port.

To ensure the network interfaces aren't a performance bottleneck, each TVS-x71 is equipped with 4 Gigabit Ethernet ports. There are also two expansion slots that can expand network capacity up to an additional four Gigabit or four 10 Gigabit Ethernet ports. Each of the models uses DDR3 RAM and supports up to 16 GB. The table below summarizes the three TVS-x71 models and processor/memory options.

QNAP TVS-x71 Product and Model comparison

QNAP TVS-x71 Product and Model comparison

This review will focus on the TVS-471-i3-4G four bay NAS with an i3 processor and 4 GB of RAM, currently priced at $1089. The Pentium G3250-based TVS-471-PT-4G model is priced $100 less at $989. In this review, I'll be using the ASUSTOR AS7004T for comparison. Like our TVS-471-i3-4G review unit, the ASUSTOR AS7004T also uses an Intel i3 3.5 GHz processor. However, ASUSTOR uses a Core i3-4330, and the QNAP uses a Core i3-4150. Also, in this review I'll be presenting 10 Gigabit Ethernet results.

The callouts below show the front and rear panel of the TVS-471. The front panel has LED indicators for status, USB, LAN activity and individual indicators for each drive. The front panel features key-lockable disk trays, LCD information display panel, USB 3.0 port and One Touch copy button.

QNAP TVS-471 callouts

QNAP TVS-471 callouts

The rear panel has four Gigabit Ethernet ports, 2 USB 2.0 ports, 2 USB 3.0 ports and 4 Gigabit LAN ports. As you can tell from the AC power connector, the power supply is built into the TVS-471. Of special note are two PCIe expansion ports. We used one of the ports for an optional dual-port copper 10 Gigabit Network Expansion card QNAP supplied. The expansion card, model LAN-10G2T-D has a list price of $429. If you need only one 10GbE port, other options are the single copper port LAN-10G1T-D at $220 and SFP+ port LAN-10G1SR-D at $170.

The TVS-471 proved to be difficult to disassemble, so we weren't able to detail individual component part numbers as we normally do. However, to summarize the key components, the TVS-471 uses an Intel Core i3-4150 processor running at 3.5 GHz and has 4 GB of DDR3 RAM. The spec sheet indicates that there's 512MB USB DoM Flash. Most likely, the 4 Gigabit Ethernet ports are provided by a pair Intel WG1210AT dual port Gigabit PHYs.


QNAP uses a single operating system for all of its NASes. The current version of QTS is 4.1 (Version 4.1.4 tested). Last year, we published a full review of QTS 4.1. In addition, while browsing the QNAP site, I found an extensive (64 pages) datasheet on the TVS-x71 series. It's well worth downloading. To give you a feel for the user interface, below is the landing page from my review of QTS 4.1.

QNAP QTS 4.1 Menu

QNAP QTS 4.1 Menu

Power consumption with four 3 TB WD Red drives we supplied drives was 39W (active) and 26 W (power save). RAID 10 rebuild time was a 7 hours and 10 minutes for a 4 X 3TB configuration. Fan and drive noise was rated as medium low; mostly drive noise. It was noted that there was a fan spinup to high during RAID 10 formatting due to high drive 3 temperature.

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