Asustor Nimbustor 4 (AS5304T) NAS Review - Product Gallery

Located at the backside we can see a ventilation hole, the unit is _very_ silent, and it will regulate fan RPM depending on the temperature and/or configurable fan preference. You can configure power saving and fan options in the software suite. There are a few connection options including USB 2.0/3.0/3.1 (one at the back, one in the front). 

• CPU: Quad Core p Celeron rocessor
• Memory: 4GB DDR4
• Memory Expandable up to: 8GB
• HDD: 4 x SATA3 6Gb/s; 3.5"/2.5" HDD/SSD
• Expansion: USB 3.1 Gen-1 x2
• Network: 2.5 Gigabit Ethernet x 2
• Output: HDMI 2.0a
• System Fan: 120mm x 1
• Power Supply Unit / Adapter: 90W x1
• Input Power Voltage: 100V to 240V AC

At the (new) front side, you can see a USB 3.1 connector on the lower left. There are also LED indicators for the operational status of the NAS. To the top left, you'll find the power button and status LEDs. 

A front plate covering the HDD bays, a great option that prevents dust build-up. It's secured with four little magnets, you just pull it out gently, and you can access the four HDD/SSD bays. Yes, pop four 12 TB HDDs in there and you'll have a 48 TB NAS cluster. It looks good with the dark design. Over a single 2.5 Gigabit jack, this unit is capable of read speeds of 250~300 MB/s. We'll show you that in the benchmark results of course. Link aggregation is still possible as well, you can nearly double that to 5 Gbps, albeit I feel that link aggregation is a dying thing in the SOHO and consumer space, I bet most people do not even know of its existence as it is too complicated and expensive to create an infrastructure for it.

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