QNAP TS-433-4G-US 4 Bay NAS (Diskless)
The QNAP TS-433-4G NAS is a powerful 4-bay diskless network storage solution designed for home and small business users. This QNAP TS-433-4G NAS delivers high-performance data access, supports flexible RAID configurations, and works with HDDs or SSDs to provide secure and reliable storage.
Equipped with Gigabit Ethernet connectivity and a quad-core ARM processor, the QNAP TS-433-4G NAS allows seamless file sharing, efficient backups, and smooth media streaming. Its intuitive QTS OS provides advanced features such as snapshot protection, hybrid cloud backup, and easy network integration.
Ideal for a home file server, multimedia storage, or a small business backup solution, the QNAP TS-433-4G NAS combines speed, security, and simplicity in one compact 4-bay NAS enclosure.
Run your own personal cloud storage and enjoy easy file access, sharing, and syncing with the TS-433. Designed with a 2.5GbE port to enhance collaboration and increase remote work productivity, the TS-433 also features rich multimedia applications and provides a complete home entertainment portal
Centralized multimedia management
Centrally store photos, music, and videos; easily browse, organize, and share multimedia files.
AI-powered image recognition
With a built-in NPU (Neural network Processing Unit) processor, the TS-433 boosts performance for high-speed face and object recognition.
Home entertainment center
Supports ARM NEON technology that accelerates video processing for a greater entertainment experience.
Secure remote access
myQNAPcloud allows you to easily access, manage, and share NAS files via the Internet
Snapshot protection against Ransomware
Protect your files and data from accidental deletion and malware attacks by using advanced snapshot protection.
Comprehensive security management
Serves as a secure private cloud and supports user account protection, IP blocking, 2-step verification, encryption access, and more.
Available Models
TS-433-4G
ARM 4-core Cortex-A55 2.0GHz processor, 4 GB on board (non-expandable)
Minimalist design
The compact and slim TS-433 prioritizes a clean and essential design, and perfectly blends into your home or office. The design extends to the hard drives, which can be installed without needing a screwdriver.
Effective cooling fan for heat flow
The TS-433 is small in size and remains high-performance, cool, and quiet with an effective cooling fan.
64-bit Cortex-A55 quad-core 2.0 GHz CPU NAS for everyday use and collaboration
Powered by a ARM® Cortex-A55 quad-core 2 GHz processor, built-in 4 GB RAM, one Gigabit LAN port, one 2.5 Gigabit LAN port, and supports four SATA 6Gb/s hard drives, the TS-433 provides dependable read/write performance for running various home and business NAS applications. The TS-433 features AES-NI 256 hardware-accelerated encryption for both full NAS volumes and shared folders, boosting system performance while securing sensitive data.
| Windows File Transfer (1 x 2.5 GbE) | Download 280 MB/s | Upload 202 MB/s |
|---|---|---|
| Windows File Transfer with Encryption (1 x 2.5 GbE) | Download 279 MB/s | Upload 198 MB/s |
Tested in QNAP Labs. Figures may vary by environment.
Test Environment:
NAS: TS-433
OS: QTS 5.0.0
Volume type:
Samsung 860 PRO 512GB SATA*4, RAID 5
Client PC: Windows Server 2016, Intel i7-6700 3.40GHz, 64GB RAM, NIC Intel X550
Build a High-Speed 2.5GbE Network Environment
QNAP offers comprehensive, budget-friendly storage and networking solutions that provide an array of connectivity possibilities. Easily and flexibly upgrade your workplace or home network now to handle bandwidth-hungry applications.
A fast 2.5GbE NAS
The TS-433 features one 2.5GbE ports.
Upgrade computers and servers
Servers and desktops can install PCIe-based that support 10G/5G/2.5G/1G/100M Multi-Gig.
Add a 5GbE port to laptops
Laptops and upgrade-limited computers can use that allows you to connect to 5G/2.5G/1G/100M networks via USB.
A switch that supports 2.5GbE+
support 10G/5G/2.5G/1G/100M and allow connecting multiple workstations and devices for high-speed collaboration in device-dense environments.
NPU accelerates on-device AI performance. 6x faster face recognition
NPU (Neural-network Processing Unit), designed to speed up AI tasks, not only accelerates organization and classification in QuMagie smart album, but also reduces CPU workloads when fulfilling AI-driven requests. When uploading a large number of photos to the TS-433, you will enjoy high-speed AI performance of photo processing brought by NPU.
QTS 5, Fast, smooth, and easy-to-use!
The TS-433 comes with the QTS 5 operating system as standard, providing a next-generation usage experience with an updated system kernel, optimized user interface, and advanced security features.
Brighter. Smoother. You’ll like it.
When navigating QTS 5, you will notice a finer attention to detail for a superior browsing experience. Enjoy a smoother NAS experience, comfortable visual design, and find your favorite apps quicker.
Get started with the notice board
Smooth and reactive user interface
An easy-to-use, all-in-one backup solution
The TS-433 can do many things, but at its heart is a complete backup solution to protect your files and data. By regularly backing up your files and device content, you can make data loss a thing of the past.
Back up Windows®/Mac® files
For Windows®, install NetBak Replicator to back up your PC files to the TS-433. In macOS®, simply set up the built-in Time Machine® to back up files to NAS.
Back up photos on mobile devices
Install Qfile or QuMagie mobile app and enable the “auto-upload” function. Photos will be automatically uploaded to your TS-433 as soon as they are taken.
Back up USB drives & external hard drives
Simply plug in the storage device to the front USB port of the TS-433 and press the One-Touch Copy button to back up all files to the NAS.
Back up Google Drive™
Hybrid Backup Sync can safely back up files and data from Google Drive™ to the TS-433, helping you save money on cloud storage costs.
Back up NAS files to the cloud
Hybrid Backup Sync supports QNAP-hosted myQNAPcloud Storage and numerous public cloud services, allowing you to effortlessly back up or sync NAS files to cloud storage.
Back up NAS files to remote sites
With Hybrid Backup Sync, you can easily backup or sync files and data from the TS-433 to a remote QNAP NAS or server for multiplied data protection.
Back up WordPress sites
Enjoy efficient WordPress backup/restore and site migration by leveraging the user-friendly Multi-Application Recovery Service (MARS), and easily batch backup WordPress files and database to the TS-433 with backup scheduling.
Protect your data from ransomware threats with Snapshots
Snapshots are an advanced backup method and are normally reserved for high-end business NAS. QNAP provides snapshots as standard for all NAS – including the TS-433. Snapshots work by recording the current state of the system, allowing it to be restored back this state at any time – greatly helping in mitigating the threat of ransomware.
Back up PCs to your NAS
Always remember to back up! You should routinely (or automatically) back up files and data from your computer to your TS-433.
The best storage for your high-resolution multimedia files
High-resolution RAW files eat up phone storage so quickly. Whether you are a photographer enthusiastic, YouTuber, or professional photo/video editors, use the TS-433 with high-capacity hard drives to alleviate your storage anxiety and organize files efficiently as the best storage center.
Storage for music collections
Use Music Station to collect and play lossless music, sing along with lyrics, and share albums, playlists or folders with friends and family. You can also put tons of music right in your pocket using the Qmusic mobile app.
Store high-resolution videos
Centrally collect GoPro diaries, videos of your family, friends, and pets in Video Station, and easily share your favorites. Take all your videos with you on your mobile devices using the Qvideo mobile app.
Enhanced multimedia experience
The TS-433 supports ARM NEON technology to accelerate video processing for a greater entertainment experience. Stream media files from the TS-433 to DLNA® devices and TVs using common media streaming devices including Roku®, Apple TV® , Google Chromecast™, and Amazon Fire TV®.
Playback quality may vary due to factors including playback software, file formats, system usage, and available bandwidth. H.265 hardware transcoding requires installing with Plus license.
File Station
Easily manage files stored in your TS-433 using the web-based File Station. The Qfile companion mobile app also puts all your files at your fingertips, providing a complete personal cloud service that is accessible from anywhere!
Qsync
Qsync is a perfect replacement of Dropbox®, allowing you to synchronize files with computers and mobile devices belonging to your family, friends, colleagues, and clients.
Qfiling
Save time organizing and archiving your files with Qfiling. Simply categorize your files, set a schedule, and Qfiling will automatically organize and archive them.
Access your NAS from anywhere
The myQNAPcloud service enables quick and easy remote access to your TS-433, allowing you to be always connected without needing to configure complex network settings. With myQNAPcloud Link you are provided with a unique domain name for your TS-433, and will automatically connect using the best method based on your network environment.
Protect your data with higher security
The TS-433 provides advanced privacy and security settings but is easy to set up and use. Besides IP blocking and HTTPS connectivity, there are more apps that help ensure an optimal level of NAS protection against threats like malware and hackers.
Enable multi-factor authentication
It is strongly recommended to enable secure login methods such as passwordless login and 2-Step Verification for adding an extra layer of data security.
Advanced folder permissions
Easily manage folder permissions, specifying read, read/write, and deny access of individual users to each folder and subfolder.
QuFirewall protection
Supports IPv6, firewall access lists, and GeoIP filtering to restrict access based on geographical locations for higher NAS network security.
Host container applications
If you are curious about Docker or are a hobbyist developer, Container Station on the TS-433 integrates Docker® lightweight virtualization technology, allowing you to run all kinds of self-contained applications. You can download apps from the built-in Docker Hub®, including popular and fully-configured applications, and deploy them with just one click. From smart homes to multimedia applications, you can explore your creativity and bring containerized applications to life.
Besides Container Station, more apps (including tools for backup/sync, content management, communications, download, and entertainment) are available from the App Center. Simply click and install on-demand to further extend the functionality of your TS-433.
Flexible and economical storage expansion
QNAP provides easy and affordable solutions to expand your NAS storage capacity.
QNAP TS‑433‑4G
4‑Bay NAS • ARM Cortex‑A55 2.0GHz • 4GB RAM • Dual‑Boot OS Protection • 2.5GbE + 1GbE • USB 3.2 Gen 1
Operating System & Client Support
| Operating System | QTS 5.2.5 |
|---|---|
| Supported Client OS | macOS 10.10+, Linux (Ubuntu 14.04, CentOS 7, RHEL 6.6, SUSE 12+), UNIX (IBM AIX 7, Solaris 10+), Windows 7/8/10/11, Windows Server 2008 R2–2022 |
| Supported Browsers | Safari, Chrome, Edge, Firefox (latest versions) |
| Supported Languages | Chinese (Traditional & Simplified), Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese (Brazil), Romanian, Russian, Spanish, Swedish, Thai, Turkish |
Storage Management
| Storage Pool | Yes (SED supported) |
|---|---|
| Max Pool Size | 308 TB |
| Max Pools | 128 |
| Volume Type | Thick, Thin, Static |
| Max Volume Size | 250 TB (requires ≥4GB RAM) |
| Max Volumes | 128 |
| Max Shared Folder Size | 250 TB |
| Max Shared Folders | 512 |
| Expansion | JBOD Expansion, VJBOD, VJBOD Cloud |
iSCSI Service
| LUN Type | Thick, Thin |
|---|---|
| iSCSI LUN | File-based, Block-based |
| Max LUN Size | 250 TB (requires ≥4GB RAM) |
| Max LUN Targets | 128 |
| LUN Features | LUN Mapping, LUN Masking, WWPN Aliases, Multipath IO (MPIO) |
RAID Management
| Supported RAID | 4‑bay: JBOD, Single, RAID 0/1/5/6/10 6‑bay: RAID 0/1/5/6/10/50 8‑bay+: RAID 0/1/5/6/10/50/60 |
|---|---|
| RAID Group Limit | 16 drives per group (new groups only) |
| Features | RAID Level Migration, Expansion (add/replace disks), Pool Expansion, Hot Spare (Global/Local), Sync/Rebuild/Scrubbing |
File Systems
| Internal Drive | EXT4 |
|---|---|
| External Drive | EXT3, EXT4, NTFS, FAT32, HFS+, exFAT (license required on ARM) |
Data Protection & Snapshots
| Volume Snapshot | Yes |
|---|---|
| LUN Snapshot | Yes |
| Min Snapshot Interval | 5 minutes |
| Features | Retention Policy, Recovery, Consistency, Clone, Replica/Vault |
Networking & Security
| Protocols | IPv4, IPv6, VLAN, Virtual Switch, DHCP, DDNS |
|---|---|
| Security | Firewall, Access Protection, 2-step Verification, AES 256-bit Encryption (FIPS 140-2 validated), Malware Remover, Security Counselor |
| Connections | HTTP/HTTPS (TLS 1.0–1.3), SSH, Telnet, WebDAV |
| Directory Services | LDAP, RADIUS, Domain Controller, Domain Security |
Applications & Features
| Qsync | Central/User modes, max 64 versions, supports Win/macOS/Ubuntu/Android/iOS |
|---|---|
| HybridMount | Cloud Gateway, 2 free sessions, 20 concurrent connections |
| Hybrid Backup Sync (HBS) | NAS-NAS, Cloud, 2-way, Time Machine, External drives, 400 jobs |
| Boxafe | Office 365 & Google Workspace backup (≥4GB RAM) |
| Qsirch | Full-text & multimedia search with filters |
| QuMagie | AI-assisted photo management |
| QVPN | PPTP, L2TP/IPSec, OpenVPN, WireGuard, QBelt; up to 100 clients |
| Container Station | LXC/LXD, Docker, registry support |
| QVR Elite | MP4-based, H.264, 2 free camera channels, subscription licenses |
This table summarizes the supplied specifications. Some features require minimum RAM as noted.
QNAP TS-433-4G-US 4 Bay NAS (Diskless) delivers reliable storage with quad-core performance, secure file sharing, and scalable cloud backup for home or office.
QNAP TS-433-4G-US 4 Bay NAS (Diskless) – High-Performance Storage Solution
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