Asustor AS6404T NAS Review - Product Gallery

Located at the backside we can see a ventilation hole, the unit is reasonably silent, and it will regulate fan RPM depending on temperature and/or configurable fan preference. You can configure power saving and fan options in the software suite. There are quite a few connection options including USB 2.0/3.0 (four at the back, one in the front). 

• CPU: Intel Celeron J3455 Quad-Core 1.5 GHz (brust up 2.3GHz) Processor
• Memory: 8GB SO-DIMM DDR3L (4GB x2, Expandable. Max 8GB)
• HDD: 4 x SATA3 6Gb/s; 3.5"/2.5" HDD/SSD Compatibility
• Maximum Internal Raw Capacity: 40 TB  (10 TB HDD X 4, capacity may vary by RAID types)
• Expansion: USB 3.0 x 4 (Type A x3, Type C x1)
• Network: Gigabit Ethernet x 2
• LCD Panel
• Output: HDMI 2.0 x 1, S/PDIF x1
• System Fan: 120mm x 1
• Infrared Receiver
• Audio Output: S/PDIF
• Power Supply Unit / Adapter: 90W x1
• Input Power Voltage: 100V to 240V AC

The unit sports two Gigabit Ethernet ports that can be teamed as well. You will also find an HDMI connector. All the way up top you even can find a S/PDIF output for audio as, yes, this unit could function as home media center as well (KODI is supported). It even comes with an infra red receiver compatible with an optional media remote control from ASUSTOR. Or you could just connect a keyboard / remote / mouse to the USB ports of course.

At the front side, you can see a USB 3.0 connector on the lower left. There are also LED indicators for the operational status of the NAS. There is also an IR sensor as you can use this unit as a media center PC and purchase an optional remote control. You can also connect a wireless keyboard or mouse to the USB ports. To the top left you'll find the power button and status LEDs. If the NAS is in sleep mode it's orange, when enabled and active, green. Up top a status and menu display and control buttons, really handy. 

Yes, pop four 10 TB HDDs in there and you'll have a 40 TB NAS cluster. It's a daunting looking storage unit alright, but the looks alone need some serious hardware and, as such, this unit is powered by a quad-core Celeron that is fast enough to host many applications and provide fast IO delivery. It looks good with the dark design. The unit is capable of read speeds of over 112 MB/s and write speeds of over 110 MB/s on a single Gigabit jack. And with link aggregation you can nearly double that number. If you'd like to take it up a notch, a hardware encryption engine also features read speeds of over 112 MB/s and write speeds for encrypted data providing an optimal combination of file security and system performance. Also to the front left you can see a mesh, which is the air intake. 

Here you are looking at the bottom, the unit rests on four rubber feet to prevent resonating noises from the HDDs.