Terramaster SMB NAS 04Bay U4-500

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Product details

The TerraMaster U4-500 is a powerful 4-Bay NAS enclosure designed specifically for demanding multimedia and business applications. Powered by an Intel Core i3-1215U processor, this system offers reliable performance for data management, media streaming, and file sharing. It supports up to four 3.5-inch or 2.5-inch hard drives or SSDs, allowing for flexible storage expansion. With two 2.5GbE network ports, the U4-500 ensures fast data transfer speeds optimized for multiple simultaneous users. Its compact design and aluminum alloy construction provide durability and effective heat dissipation, while the system operates quietly with noise levels below 25 dB. The NAS supports various RAID configurations to ensure both data protection and performance optimization. Additionally, the TerraMaster TOS operating system offers comprehensive applications for backup, synchronization, and media management.

  • Intel Core i3-1215U processor for reliable performance
  • Supports up to 80 TB total storage capacity
  • Two 2.5GbE network ports for high data transfer speeds
  • Supports multiple RAID configurations for data protection and performance
  • Quiet operation with noise levels below 25 dB.

Key specifications

NAS HDD assembly
NAS Empty Enclosure
Max. number of hard disks
4
RAID configuration
0, 1, 10, 5, 6
Working memory
8 GB
Total storage capacity
80 TB
Network connections
RJ45 (2x)

General information

Item number
59013317
Manufacturer
Terramaster
Category
NAS
Manufacturer no.
U4-500
Release date
30.5.2025
May include power adapter
No

Colour

Colour
Grey

NAS properties

NAS HDD assembly
NAS Empty Enclosure
Model
19" rack
Max. number of hard disks
4
Hard drive form factor
2.5", 3.5"
RAID configuration
0, 1, 10, 5, 6
Memory type
DDR4-RAM
Working memory
8 GB
Maximum possible memory
64 GB
Add-on packages
Time backup
NAS features – model-specific
4K Ultra HD Video Transcoding

Hard drive slots

Total storage capacity
80 TB
Hard disk additional functions
Hot swapping

Processor

Processor type
Intel Core i3-1215U
Number of processor cores
5 -Core

Network connections

Network connections
RJ45 (2x)

Wireless transmission

Connectivity
Ethernet, USB

Additional connections

USB ports
USB-A

Mains supply properties

Power consumption
45 W
Power consumption (standby)
25 W
Redundant power supply unit
No

Origin

Country of origin
China

Voluntary climate contribution

CO₂ emissions
374.64 kg
Climate contribution
CHF 8.91

Product dimensions

Length
22 cm
Width
23 cm
Height
17 cm

Package dimensions

Length
56 cm
Width
51 cm
Height
10 cm
Weight
6.24 kg

30-day right of return
24 Months Warranty (Bring-in)
1 additional offer

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «NAS» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 2.Ugreen
    0.9 %
  • 4.Asustor
    1.1 %
  • 4.Synology
    1.1 %
  • 6.Terramaster
    1.8 %
  • 7.WD
    2.2 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 1.Ugreen
    1 day
  • 2.Synology
    4 days
  • 2.WD
    4 days
  • 4.QNAP
    10 days
  • Asustor
    Not enough data

Return rate

How often is a product of this brand in the «NAS» category returned?

Source: Digitec Galaxus
  • 2.Ugreen
    2.7 %
  • 3.Synology
    2.8 %
  • 4.Ubiquiti
    3.6 %
  • 5.Terramaster
    5.1 %
  • 6.Asustor
    6.6 %
Source: Digitec Galaxus