The QNAP 639 Pro Exterior
When the box arrived in our offices we were immediately aware this was a substantial piece of equipment due to the weight of the package. With a weight of almost 8kg with no hard drives and a metal casing you are immediately aware of the build quality. It is an aspect of QNAP products we always appreciate, especially when most manufacturers are releasing products with basically no more than reinforced plastic components.
The box is securely packed with foam and above the main chassis is a box containing a power plug, two 1 meter cat 5e cables, hard drive mounting screws and a glossy presentation pack. The CD is not really needed but proves to help people who are unaware of how to setup the system by issuing prompts via a software application.
The unit is very similar in design to the 409 Pro we previously reviewed and is built of the same high quality steel and brushed aluminium metal. It measures in at 257x175x235 mm (WxHxD).
On the front lower left of the chassis there is a power button as well as a USB2 port for front mounted USB drive backups.
On the right of the unit there are the six Sata 3.0 GB capable hard drive slots which can support up to 2GB 3.5inch drive units for a total of 12GB of storage (before formatting). The supplied key system (K Lock Security slot) can lock the individual bays for security and to ensure no movement takes place - the locking mechanism of the drives is very well engineered and works flawlessly - you simply pull up on the lip and pull out. If the key has the bay locked then the lip will not pull up at all.
The rear of the unit is populated with two large 9cm, slow spinning fans to keep the considerable chassis running cool.
At the top of the rear we can see the internal PSU which expels hot air outside the chassis. There is a very capable power supply inside and we will look more closely at it when we open up the case to look inside.
On the rear we are presented with two esata ports as well as 4 USB 2 ports. In between are two gigabit lan connections which can either connect to seperate networks or offer load balancing. Later we will look at the options available when we address the software package implementation. There is also a tiny reset button which resets the passwords and network settings in case you forget them. The VGA output (just out of shot) is not usable and is included for maintenance diagnostic work by QNAP if ever needed.