QNAP TS-473 4-Bay NAS Review 11

QNAP TS-473 4-Bay NAS Review

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QNAP TS-473-4G Specifications
ProcessorAMD R-Series RX-421ND quad-core
(2.1 GHz, Turbo Core up to 3.4 GHz)
Operating SystemEmbedded Linux
Memory4 GB DDR4 (2 x 2 GB)
Maximum Memory64 GB (4 x 16 GB)
PCIe Slots2x PCIe 3.0 x4
IR SensorOptional QNAP RM-IR004 remote control 
Drive Bays4x 3.5"/2.5" SATA II/III
M.2 SSD Slots2x M.2 2260/2280 SATA 6 Gb/s SSDs
RAID Levels:RAID 0, 1, 5, 6, 10, JBOD, Single
Supported File SystemsInternal hard drive: EXT4
External hard drive: EXT3, EXT4, NTFS, FAT32, HFS+, and exFAT (with an extra charge)
iSCSITarget & Initiator
Networking4x 10/100/1000 Mbit Ethernet
USB Ports4x USB 3.0 (Front: 1; Back: 3)
Audio Ports• 2x 3.5 mm dynamic microphone jacks
• 1x 3.5 mm line-out jack
• 1x speakers
Dimensions (H x W x D)188.2 x 199.3 x 279.6 mm
7.41 x 7.85 x 11.01 inch
Weight (Net)4.84 kg (10.67 lbs)
Power ConsumptionHDD standby: 33.24 W
In operation: 56.23 W
(with 4x 2 TB HDDs installed)
Power SupplyInternal, 250 W, 100-240V AC, 50/60Hz
FanSystem: 1x 120 mm (FD121225LB)
CPU: 1x 60 mm (T126010BU)
Warranty2 years
Price excluding VAT
(at the time of the review)


The AMD R-Series RX-421ND quad-core CPU is clocked at 2.1 GHz and features Turbo Core for up to 3.4 GHz. If you decide to replace the pre-installed DIMMs, the server's RAM can be expanded to 64 GB (4 x 16 GB) because of four available RAM slots. This is a lot of memory for a NAS server running a custom-tailored Linux operating system that is light on system resources.

Besides the four bays, there are also two M.2 slots for installing compatible SSDs, which can used as the system's cache for faster network transfers. The two PCIe expansion slots can also take cards that provide additional M.2 slots should you need more. Thanks to those PCIe slots, the TS-473 can also take 10 Gb Ethernet cards or graphics cards (e.g. NVIDIA GT1030). It is nice to see NAS servers capable of upgrading their transcoding and general multimedia capabilities with graphics cards. Lastly, you can also install a compatible wireless network card into the server's PCIe slots, and in combination with the Wireless AP Station application, the TS-473 can even take on the role of a wireless access point.

There our four USB 3.0 ports of which one is conveniently located at the face of the NAS. QNAP also equipped this NAS with two 3.5 mm dynamic microphone ports, a 3.5 mm line-out port, and one more port for connecting external speakers (the NAS already has one). According to QNAP, you cannot use the line-out and speaker port simultaneously.

Internally, there is an IR sensor for compatibility with the optional QNAP RM-IR004 remote control or other smart devices with IR transmitters. At 250 W max power output, the embedded power supply is quite strong for a NAS. Finally, in the cooling section, we find two fans, one with a diameter of 120 mm that cools down the drives and a smaller 60 mm fan for the CPU's heatsink.

With a price close to $680, the TS-473-4G surely is not an affordable NAS. However, it has a rich feature set due to its capable hardware, and we should not forget that the operating system and QNAP applications, along with QNAP's provided support, aren't cheap. If you want good support and a state-of-the-art operating system with constant updates and new capabilities added frequently, you have to pay for it.
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