Note:

• The full product specifications below are from the manufacturer and may contain information related to other package quantities that will not apply to the product that you are reviewing. Please confirm the actual content and/or package quantity from the main product specifications page.
• These specifications may represent the entire product series/model/line to which this product belongs with specific configuration differences between the individual products stated.
• These specifications may have been copied from the same product in other region/country in which case there might be minor differences in region-specific data such as Input Voltage, Terms of Warranty etc.

CPU:  
TVS-671-PT-4G: Dual-core Intel G3250 3.2 GHz Processor
TVS-671-i3-4G: Dual-core Intel Core i3-4150 3.5 GHz Processor
TVS-671-i5-8G: Quad-core Intel Core i5-4590S 3.0 GHz Processor (Turbo boost to 3.7 GHz)

DRAM:
 TVS-671-PT-4G/ TVS-671-i3-4G

    System memory: 4 GB DDR3 RAM
    Memory module pre-installed: 2 GB x2
    Total memory slots: 2
    Memory expandable up to: 16 GB (8GB x2)

TVS-671-i5-8G

    System memory: 8 GB DDR3 RAM
    Memory module pre-installed: 4 GB x2
    Total memory slots: 2
    Memory expandable up to: 16 GB (8GB x2)


NOTE:
1. When upgrading RAM, the original RAM module in the upgradable slot must be removed.
2. For the information of RAM module installation and compatible NAS models, please refer to the QNAP RAM Module Installation Guide.

Flash Memory: 512MB DOM

Hard Drive:
6 x 3.5-inch SATA 6Gb/s, SATA 3Gb/s hard drive or 2.5-inch SATA, SSD hard drive

NOTE:
1. The standard system is shipped without hard drives.
2. For the HDD compatibility list, please visit http://www.qnap.com/i/uk/product_x_grade/

Hard Drive Tray: 6 x hot-swappable and lockable tray

LAN Port:  
4 x Gigabit RJ-45 Ethernet port
(Expandable up to 8 x 1 Gb LAN or 4 x 10 Gb + 4 x 1 Gb LAN by installing optional dual-port 10 Gb and 1 Gb network card)

Note:
1. For the optional network card compatibility list, please visit http://www.qnap.com/i/uk/product_x_grade/cat_intro.php?g_cat=11
2. For the information of network card installation, please refer to chapter 6 in the Turbo NAS Hardware Manual.

LED Indicators: Status, USB, LAN

USB:  
3x USB 3.0 port (front: 1, rear: 2)
2x USB 2.0 port (rear)

Support USB printer, pen drive, USB hub, and USB UPS etc.

Buttons: System: Power button and reset button

Alarm Buzzer: System warning

Form Factor: Tower

Dimensions:
175 (H) x 257 (W) x 235 (D) mm
6.89 (H) x10.12 (W) x 9.25 (D) inch

Weight:
6.18 kg/ 13.62 lbs (Net)
6.9 kg/ 15.21 lbs (Goss)

Sound Level (dB): Sound pressure (LpAm) (by stander positions): 21.0 dB

Power Consumption (W):  

TVS-671-PT-4G:

    HDD Standby: 36.32
    In Operation: 62.25

TVS-671-i3-4G:

    HDD Standby: 38.72
    In Operation: 66.30

TVS-671-i5-8G:

    HDD Standby: 36.4
    In Operation: 62.18

(with 6 x WD WD20EFRX hard drive installed)

Temperature: 0~40˚C

Relative Humidity: 5~95% non-condensing, wet bulb: 27˚C.

Power Supply: Input: 100-240V AC, 50/60Hz Output: 250W

PCIe Slot: 2 (1* PCIe Gen3 x8, 1* PCIe Gen2 x4)

Fan: 2 x quiet cooling fan (9 cm, 12V DC)