QNAP

QNAP TS-433EU 4-Bay 1U Rackmount NAS with 4GB RAM & Dual 2.5GbE

Processor manufacturerARM
Internal memory4 GB
Storage drive size2.5/3.5
Power consumption (typical)23.74 W
Operating temperature (T-T)0 – 40 °C
Operating system installedQNAP Turbo System

The QNAP TS-433EU is a 4-bay rackmount NAS built for edge deployments where space is at a premium. Its 1U short-depth form factor slots into compact media cabinets or wall-mounted network racks, bringing your network attached storage closer to where it's actually needed.

Description

Efficient ARM Performance with Dual 2.5GbE Connectivity

4-bay, diskless design — populate with up to four drives of your choice for flexible capacity planning
ARM Cortex-A quad-core CPU with 4 GB RAM — capable processing with significantly lower power draw than comparable x86 NAS units
Two 2.5GbE LAN ports — enables Port Trunking or SMB Multichannel for faster transfers and redundancy
1U short-depth rackmount chassis — fits tight server rooms, small offices, or wall-mounted racks
Docker and smart backup support — run containerised applications and centralise snapshots against ransomware

The TS-433EU suits small businesses, branch offices, and IT teams looking for an energy-efficient, space-saving NAS for edge storage, file management, and secure centralised backups.

Specifications

General

Brand	QNAP
Model name	TS-433eU
Product colour	Black
Type	NAS
Buzzer	Yes
Hot spare	Yes
Chassis type	Rack (1U)
Device class	Small & Medium Business
Fan diameter	40
Share folder	CIFS/SMB
Number of fans	3
Built-in FTP server	Yes
Operating relative humidity (H-H)	5 - 95
Warranty	3 years
EAN	4711103085943

Processor

Processor manufacturer	ARM
Processor family	Cortex-A
Processor model	Cortex-A55
Processor cores	4
Processor frequency	2 GHz
Processor architecture	ARM Cortex-A55

Memory

Internal memory	4 GB

Storage

Storage drive size	2.5/3.5
Hot-swap drive bays	Yes
Storage drive interface	Serial ATA
Storage drives installed	No
Storage temperature (T-T)	-20 - 70
Installed storage drive type	No
Supported storage drive types	HDD & SSD
Total installed storage capacity	0
Number of storage drives supported	4

Ports

USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
USB port	Yes
Ethernet LAN	Yes
Ethernet LAN (RJ-45) ports	2
Ethernet LAN data rates	1000/2500
Cable lock slot	Yes
Cable lock slot type	Kensington
Wake-on-LAN ready	Yes

Software & security

Operating system installed	QNAP Turbo System
Operating system version	4.1
Mac operating systems supported	Yes
Linux operating systems supported	Yes
Windows operating systems supported	Yes

Keyboard & controls

On/off switch	Yes
Reset button	Yes

Battery & power

Power consumption (typical)	23.74 W
AC input voltage	100 – 240 V
Fan voltage	12
Power supply location	Built-in
Power consumption (sleep)	9.32
Number of power supply units	1
Power supply unit (PSU) capacity	60

Performance & capacities

Operating temperature (T-T)	0 – 40 °C
Cooling type	Active

Features

LED indicators	HDD/LAN/Status/USB
Package type	Box
RAID support	No
Browser supported	Microsoft Internet Explorer 10+, Mozilla Firefox 8+, Apple Safari 4+, Google Chrome