Asustor AS4004T 4-Bay NAS




The 10GbE NAS Storage Solution. Built with only two speeds, FAST and EXTREME.

  • ASUS motherboard quality
  • Marvell 1.6GHz CPU
  • 2GB of DDR4 RAM at 2400Mhz, fast and efficient.
  • Dual gigabit Ethernet with the addition of a 10gbE port.
  • All new diamond cut exterior
  • Magnetic dust-proof cover
  • Supports two hot-swappable HDDs
  • Screwless, Toolfree installation
  • Hot-swappable
  • 3 year warranty, best in class



A New Look!

Enhanced dust prevention, cooling and stability.

A New Look!<br/> <small>Enhanced dust prevention, cooling and stability.</small>

The AS40 series diamond-cut exterior has a magnetic cover for easy access to hard drives within. Its front panel hexagonal design creates a lightweight, yet strong frame for added durability and protection. The AS40 series also comes with a better cooling design, allowing for better airflow, allowing for higher longevity and lower failure rates.

Its front panel hexagonal design creates a lightweight, yet strong frame for added durability and protection.


The AS40 series diamond-cut exterior has a magnetic cover for easy access to hard drives within.


The AS40 series also comes with a better cooling design, allowing for better airflow, allowing for higher longevity and lower failure rates.


Toolfree Installation

Toolfree Installation

ASUSTORs AS40 series introduces its new tool-free caddies as a way to simplify installation of hard drives. Each NAS comes included with brackets to install the drive easily. On the AS4000 series, hot-swapping of hard drives is supported, allowing you to change hard drives easily without powering down the NAS.

PC-less Software Installation

PC-less Software Installation

Mobile installation with AiMaster takes only 3 steps! Finding your NAS, system initialization and installation, power management, ADM firmware updates, system information and more are all available from the convenience of your mobile device at any time.

Dual Core 64bit CPU and DDR4 RAM

Dual Core 64bit CPU and DDR4 RAM

The Marvell 64bit CPU found inside the AS40 series contains two cores clocked at 1.6Ghz powered by the ARM Cortex A72 microarchitecture. Compared with the Cortex-A15 core, the Cortex-A72 is three and a half times faster while providing seventy-five percent reduced power. The 64bit architecture supports up to 16TB on a single volume. The AS40 series also supports DDR4 RAM soldered onto the motherboard, providing even faster bandwidth and lower power consumption than DDR3.

Unlimited potential 10gbps speeds

Unlimited potential<br/><small>10gbps speeds </small>

ASUSTORs AS40 series of NAS are the first line of consumer NAS made by ASUSTOR to feature 10gbps of bandwidth over Ethernet. Our 10gbps Ethernet port uses RJ45 which are different from SFP+ as it is more accessible to consumers, and flexible with different Ethernet speeds and standards.

Up to 3gbps of aggregated performance

<small>Up to 3gbps of aggregated performance</small>

The AS40 series of NAS can provide up to 3gbps of aggregated performance. Even without 10gbps switch or router, connecting all Ethernet ports (two gigabit, one 10gb) of the AS40 series simultaneously and enabling Link Aggregation feature can combines 3 gigabit network connections into one.

Brand New Interface Design Elements and Flexible Use of Desktop Space

Brand New Interface Design Elements and Flexible Use of Desktop Space

ADM 3.0 provides a flexibly designed desktop layout that can provide an optimal configuration based on the display resolution. Furthermore, convenient App organization provided by the grouping function allows users to experience management that is very much like a tablet device.

Ultra-quiet operation

Ultra-quiet operation

The AS40 series devices produce only 19 decibels of noise during system standby, equivalent to the almost inaudible sound of a pin drop. During system operation, only 32 decibels of noise is produced, equivalent to the hushed tones of a quiet library, allowing the AS40 series devices to seamlessly and comfortably integrate into any living environment.

24/7 reliability and durability

24/7 reliability and durability

All ASUSTOR NAS are designed for and are suitable for 24/7 use. ASUSTOR NAS devices have also undergone rigorous tests, such as drop tests and burn tests to test durability in extreme conditions. Heatsinks were added to sensitive components to dissipate heat, helping to maintain the longevity of the device.

Save power to save money

Save power to save money

ASUSTOR NAS products are designed and developed around ecologically friendly concepts. When in use, our devices consume far less power than the average computer or server. Furthermore, our advanced power control features allow you to more efficiently manage your NAS device and hard drives. This lowers your electric bill and prolongs the lifespan of your hard drives all at the same time. While in disk hibernation, the AS4002T consumes only 12.7 W of power. Under normal operating conditions it still only consumes 19.5 W of power.

Cross-Platform Multi-User Access

The ASUSTOR NAS provides seamless cross-platform and multi-user access, allowing you to easily connect to your NAS from Windows, Mac OS X or Unix-like operating systems no matter if you are using a PC, notebook, tablet or smartphone.

Comprehensive Backup Solutions

Comprehensive Backup Solutions

The AS40 provides over 12 different backup options and is connected to a variety of public cloud storage services including Amazon S3, Dropbox, Google Drive, OneDrive,, HiDrive, Ralus, WonderBox, xCloud and CrashPlan. You can also use FTP Explorer, USB external hard drive enclosures, external hard drives and local backup to ensure proper backup for your data. No matter if you are using Windows, Mac or Linux, ASUSTOR provides the proper tools for your backup needs. MyArchive cold backup technology turns NAS hard disks into removable storage archives. Directly insert a MyArchive hard disk into the NAS to easily access, backup and share terabytes of content.

Exclusive MyArchive Cold Backup Technology Unlimited Capacity Expansion

Exclusive MyArchive Cold Backup Technology<br/>Unlimited Capacity Expansion

MyArchive cold backup technology turns NAS hard disks into removable storage archives. Directly insert a MyArchive hard disk into the NAS to easily access, backup and share terabytes of content.

Effortless Connections to Your NAS

Effortless Connections to Your NAS

ADM 3.0 provides easy connections by supporting a new Internet Passthrough function that helps users to simplify previously complex router configurations. Even if users with mobile devices are under local network or multi-router environments, all they need to do is upgrade their apps to the latest version supporting ADM 3.0 and they will be able to easily connect to their NAS to access their data from anywhere and at any time. For computer users, they only need to install the new ASUSTOR EZ Connect (AEC) utility to utilize the Internet Passthrough function and conveniently connect to their NAS at home. Furthermore, they will also be use AEC to map their NAS to their computer as a network drive for convenient access.

Multi-Layered Protection from the Outside in

Multi-Layered Protection from the Outside in

ASUSTOR NAS ensures data security by creating an in-depth data protection plan that protects your data from the outside in. Utilization of a multi-layered deployment scheme allows for the achievement of active network, system and data protection.

Mobile Apps

Mobile Apps

ASUSTORs exclusive Cloud Connect technology allows you to connect to your NAS from anywhere with your Mobile device in order to access and share your files. ASUSTOR mobile apps provide pass code lock functions in order to protect your privacy and data. You can also make use of HTTPS connections for even more added security.

App Central

App Central

Unleash the unlimited potential of ASUSTOR NAS. The applications that come pre-installed with each ASUSTOR NAS device are just the beginning. At your convenience, you can browse through and download any applications that pique your interest from App Central. Whether your interests lie in business, website construction or even digital home entertainment, App Central has got you covered. With over 200 unique Apps, App Central provides you with the boundless variety of applications that you require to satisfy your digital lifestyle needs. Explore the unlimited potential of ASUSTOR NAS devices while creating a personalized NAS device for yourself.

First-Class Product Warranty

First-Class Product Warranty

All ASUSTOR NAS products come with a 3-year warranty. ASUSTOR continues to make customer service a priority in providing the highest standard of after-sales service and technical support.


Hardware & Packaging

Hardware Specifications


Intel Celeron 1.6GHz Dual-Core (burst up to 2.48GHz) Processor

AES-NI hardware encryption engine integrated

Hardware acceleration engine supported format

H.264 (AVC), H.265 (HEVC), MPEG-4 Part 2, MPEG-2, VC-1



Memory Expandable up to

not expandable

Flash Memory



2 x SATA3 6Gb/s; 3.5" HDD Compatibility

Maximum Internal Raw Capacity

28 TB (14 TB HDD X 2, Capacity may vary by RAID types)

Maximum Drive Bays with Expansion Unit


Maximum Raw Capacity with Expansion Units

140 TB (14 TB HDD X 14, Capacity may vary by RAID types)


USB 3.1 Gen-1 x 3


Gigabit Ethernet x 2


HDMI 1.4b x 1

System Fan

120mm x 1

Infrared Receiver

Power Supply Unit / Adapter

90W x1

Input Power Voltage

100V to 240V AC




Power Consumption: 19.5W (Operation);

8.1W (Disk Hibernation);

0.89W (Sleep Mode) ²

Noise Level: 18.6dB (HDD idle)

Operation Temperature: 0°C~40°C (32°F~104°F)

Humidity: 5% to 95% RH

ASUSTOR Hightlight

System Migration

EZ Connect


2-way Backup

Task Monitor

Eco-Friendly Design

System Automatically Enters Sleep Mode (Schedule S3)

Auto-Standby for Both Internal and External Disks

Auto Fan Control

LED Night Mode

Power Schedule: On, Off, Restart, and Sleep.

Size and Weight

Size: 165(H) x 102(W) x 218(D) mm

Weight: 2.2 kg / 4.85 lbsPackage Contents

Software & Features

Operating System

ADM 3.1 Onwards

Supports Online Firmware Updates

Supported OS

Windows XP, Vista, 7, 8, 10, Server 2003, Server 2008, Server 2012

Mac OS X 10.6 Onwards

UNIX, Linux, and BSD

Supported Languages

Supported Browsers

Internet Explore 11 Onwards




Microsoft Edge

Network Protocols

CIFS / SMB, SMB 2.0 / 3.0, AFP, NFS, FTP (Unicode Supported), TFTP, WebDAV, Rsync, SSH, SFTP, iSCSI/IP-SAN, HTTP, HTTPS, Proxy, SNMP, Syslog

File System

Internal Disk: EXT4

External Disk: FAT32, NTFS, EXT3, EXT4, HFS+, exFAT

File Explorer

Web-based File Management

ISO File Mounting

Share Links

Task Monitor

Browse Files on Local PC

Thumbnail Previews

Data Access via External Optical Drive

Supports video playback¹⁰

Storage Management

Support Multiple Volumes with Spare Disks

Volume Type: Single disk, JBOD, RAID 0, RAID 1

Support for Online RAID Level Migration

iSCSI Read/Write (5GB file, 1GbE x 1)/IP-SAN

Maximum Targets: 256

Maximum LUNs: 256

Maximum Snapshot Versions of a Single LUN: 256

Target Masking

LUN Mapping

ISO File Mounting

Supports MPIO

Persistent (SCSI-3) Reservations

Customized Sign In Page

2 Different Template Choices

Customizable Title, Imageand Background

Image Import Function

Disk Management

Scheduled Bad Block Scans

Scheduled S.M.A.R.T Scans

Energy Control

Configurable Disk Hibernation and Sleep Mode Wait Time

Configurable Time Period for Sleep Mode Activation

Automatic Sleep


TCP/IP (IPv4 & IPv6)

Jumbo Frame (MTU)


EZ Connect

Wireless Network³

DDNS and EZ-RouterCompatibility

Supports Wake-on-LAN (WOL)

Backup Solutions

Rsync (Remote Sync) Backup

Cloud Backup

FTP Backup

External Backup

System Administration

Log Type: System Log, Connection Log, File Access Log

Real-time Online User Monitor

Real-time System Monitor

User Quota

Virtual Drive (ISO Mounting, Maximum 16)

UPS SupportCompatibility

Network Recycle Bin

Share folder-based

Maintains original directory structure and file permission

On-click restore

Supports scheduled emptying

Filtering rules

File size

File extension

Access Control

Maximum Number of Users: 4096

Maximum Number of Groups: 512

Maximum Number of Shared Folders: 512

Maximum Number of Concurrent Connections: 512

Supports Windows Active Directory

Supports Windows Active Directory / LDAP


Provides both Windows ACL and Linux ACL permission configuration methods

Can enable Windows ACL for specific shared folders

Comprehensive support for Windows’ 13 types of advanced permission settings

Can view Windows ACL permission settings from within ADM

Supports local users and groups

Exclusive permission reset function allows users to quickly restore default permissions

SSD Cache

SSD-like performance with traditional hard drives

supports read-only access and read-write cache mode

Supported Models: AS31/32/50/51/61/62/63/64/70 series


AES 256-Bit Encryption

Firewall: Prevent Unauthorized Access

Alert Notifications: E-mail, SMS

Encrypted Connections: HTTPS, FTP over SSL/TLS, SSH, SFTP, Rsync over SSH

Built-in Hardware Encryption Engine: AS70/64/63//62/61/31/32/10 Series

Network Defender

Auto black list

Trusted list

Black/White list

Supports IP/IP range/geolocation

External Devices Compatibility

Supports USB External Storage Devices

USB Wi-Fi Dongle Support

Bluetooth Dongle/Speaker Support

USB Printer Support

USB DAC/IR Receiver/Keyboard/Mouse Support

CD ROM Drive/DVD ROM Drive/Blu-Ray ROM

Featured Apps


Scheduled Scans

Automatic Virus Definition Updates

Quarantine Infected Files

ASUSTOR Portal(HDMI Local Output)⁶

Supports Output for 4 Channels of Megapixel IP Camera Video Feeds

Support Chrome / Chromium browsers.

Downloads from Chrome/Chromium Automatically Saved to the NAS

Power Control Settings: Power on, Sleep, Restart and Wake via Remote

Customizable ASUSTOR Portal Desktop Wallpaper

Add Shortcuts to Favorite Websites

Increased TV Compatibility via Overscan and Resolution Settings

Max. Resolution: 1080p(HD)/2160p(4k)⁷

ASUSTOR Portal comes preloaded with Netflix and Youtube. Users can install the supplementary URL-Pack to get access to even more popular video streaming sites such as Plex, Vimeo and Youku.

After installing URL-Pack-Social, users will be able to choose between social media sites such as Facebook, Google+, Hangouts, Pinterest, Twitter, Linkedin, WhatsApp and Instagram.


Virtual Machines are Able to run the Following Operating Systems: Windows, Linux, Solaris, Mac OS X

Virtual Machine Import Format: OVF

Virtual Machine Export Format: OVF 0.9, OVF 1.0, OVF 2.0

Virtual Machine Snapshots

Virtual Machine HDMI Audio Output

Physical NAS Network Port can be Designated for use by Specific Virtual Machine

Linux Center

Integrate NAS operating system with Linux

Easy installation with just one touch

HDMI output on command

Download Center

Supports BT(Torrent & Magnet Link), HTTP and FTP Downloads

Torrent Search

Choose Files Before a BT Task Starts

Customizable Download Schedule

Bandwidth Control

RSS Subscription and Automatic Downloading (Broadcatching)

ASUSTOR Download Assistant for Windows & Mac

AiDownload for iOS & Android with Push Notification

Smart Download Function

DataSync for Microsoft OneDrive

Each ADM account is able to individually log into a OneDrive account

Supports file filter and bandwidth limitation

Supported backup methods:


Directly upload files to OneDrive from NAS

Directly download files from OneDrive to NAS


Each ADM Account is Able to Individually Log in to One Dropbox Account

Supported Backup Methods:


Dropbox to NAS

NAS to Dropbox

FTP Explorer

Directory Structure View with Drag & Drop Transfers

Task Monitor

Stopping of Transmission Task & Resumption of Connection

Encrypted Connections: Explicit over TLS, Implicit over TLS

FTP Site Manager

Bandwidth Control

Maximum Simultaneous Transfer Control

Google Drive

Each ADM Account is Able to Individually Log in to One Google Account

Supported Backup Methods:


Directly Upload Files to Google Drive from NAS

Directly Download Files from Google Drive to NAS


Support OneDrive and OneDrive Business

Each ADM Account is Able to Individually Log in to One HiDrive Account

Supported Backup Methods:

Directly Upload Files to HiDrive from NAS

Directly Download Files from HiDrive to NAS

Supported Protocols:





Rsync + SSH


Each ADM Account is Able to Individually Log in to One hubiC Account

Supported Backup Methods:


Directly Upload Files to hubiC from NAS

Directly Download Files from hubiC to NAS


Each ADM Account is Able to Individually Log in to One Yandex Account

Supported Backup Methods:


Directly Upload Files to Yandex from NAS

Directly Download Files from Yandex to NAS

LooksGood Transcoding Capabilities

Built-in three main video library categories (Movies, TV Shows, Home Movies) and smart video sorting management

Efficient Global Search function allows for searches by keywords followed by the execution of more detailed searches according to the Movies, TV Shows, Home Movies categories and parameters such as actors, director, year, genre, writer, and title

Attractive poster wall and thumbnail display

Automatic production of video poster thumbnails

Centralized management and ability t o configure order of favorites and playlist history

System administrator can configur e video library and editing permissions according to user

Can configure access permissions to share with

friends and family

Multimedia conversion function

Self-defined smart folder for video conversions

Supports digital TV recordings via digital TV dongles

Easy streaming with Chromecast and DLNA

Support to watch videos in Apple TV via AiVideos tvOS version

Supported browsers

Windows Edge / Chrome / Firefox, Mac Safari

Supported video formats


Supported video codec

H.264 (AVC), H.265 (HEVC), MPEG-2, VC-1

Supported external subtitle formats

srt, ass, ssa, vtt

Supported photo formats

jpg, jpeg, bmp, png, gif, tif

Supported TV stick TV standards


Series supporting hardware transcoding


iTunes Server

For iTunes on Mac & Windows

Supports AirPlay

Supports iOS Remote Pairing

Supported Audio Formats: AIF⁵, M4A (AAC & Apple Loseless), M4P, M4R, MP3, WAV⁵

Supported Video Formats: M4V, MOV, MP4

Supported Playlist Formats: M3U, WPL

Mail Server

Each ADM Account can Become an Independent Email Account

Email Activity Monitor (Over 1 Week, 1/3/6 Months)

Provides SMTP, IMAP and POP3 Mail Protocols

Supports SMTP Relay and Verification

SMTP-SSL Secure Connections

Spam Filter and Black List Settings

Antivirus Scanning for Emails

Email Alias Creation and Mapping

Monitoring of Mail Queue

Mail Service Activity Log

Exclusive Email Backup Mechanism

Auto-Forwarding and Auto-Response Protocols

Photo Gallery

“Album” and “Browse” Viewing Modes

Manage Photo Album Access Rights: Public Access, Restricted to Certain Accounts, Album Password

Multi-level Folder Structure Support

Supports Tagging of Photos

Intuitive Sorting and Comprehensive Search Function

Adjustable Photo Wall Browsing Scales

Automatic Image Rotation

One-click Sharing to Social Media (Facebook, Google+, Twitter, Plurk, email)

Intuitive Drag and Drop Management

Slideshow Viewing Mode

Provides Comment Function for Users to Interact with Each Other.

Supports a Wide Range of Image Formats: JPG/JPEG, GIF, PNG, BMP, TIFF, RAW

Supports Video Playback

Surveillance Center Compatibility

Up to 25 channels in 720p on single live view display

On-screen camera controls including camera PTZ, manual recordings, take snapshots, configure camera settings and open Maps

Up to 4 channels of synchronous and non-synchronous playback with audio

Intelligent video analytics including motion detection and foreign object detection

Supported Browsers: Windows Internet Explorer, Microsoft Edge, Firefox, Mac Safari, Mac Firefox ESR

Event notification supports SMS, E-mail, and mobile push notification

Automated event action rules

Role-based access control

RTSP streaming server (video and audio)

AiSecure mobile app for iOS and Android with Push notification

ONVIF™ 2.4, Profile S certified

CMS Lite supports connect up to 128 IP Cameras from 32 NAS

Two different camera license packages are offered: single channel and 4 channels.

Maximum IP Cam (4 Free Licenses; Additional Licenses to be Purchased)

Minimum PC Client Requirements

CPU: i5/i7 or above

RAM: DDR3 4G or above

Operating system Windows 7 and onward, Mac OS X

Windows browsers: Internet Explorer, Microsoft Edge, Chrome, FireFox

Mac browsers: Safari 7.0, Firefox

Display resolution: 1280x800 pixels or higher for best user experience

Network interface: Gigabit x1

Independent graphics card is highly recommend


Import Personal/Public Music Collection

Personal/Public Music Collection Permission Control

Playlist Editor

ID3 Tag Editor

Local Speaker Support: HDMI, USB, Audio Jack

Supported Audio Formats for Browser: MP3, WAV, Ogg

Supported Audio Formats for Transcoding Through Browser: AIFF, Flac

Supported Audio Formats for Local Speaker: MP3, WAV, Ogg, AIFF, Flac

ASUS DAC Support


Download from YouTube, Vimeo, YouKu, Tudou and More

Selectable the Video Type and Quality

Automatic Downloads with YouTube Subscriptions

Preview Downloads in Progress

Online Playback

UPnP Media Server

Supports PS3 and other Digital Media Player Capable Devices

Supports On-The-Fly Transcoding for Most RAW Images and Audio(OGG, FLAC)

Supported Image Formats: BMP, GIF, ICO, JPG, PNG, PSD, TIF, RAW Image⁴ (3FR, ARW, CR2, CRW, DCR, DNG, ERF, KDC, MEF, MOS, MRW, NEF, NRW, ORF, PEF, RAF, RAW, RW2, SR2, X3F)

VPN Client

Supported VPN Protocols: PPTP, OpenVPN

Transmission Package Monitor

PPTP Authentication: PAP, CHAP, MS CHAP, MS CHAP2

PPTP Encryption: No MPPE, MPPE (40, 128 bit), Maximum MPPE (128 bit)

OpenVPN Port Control

OpenVPN Link Compression

VPN Server

Supported VPN Protocols: PPTP, OpenVPN, and IPsec

View Current Connections & Ability to Disconnect Suspicious Connections

Comprehensive Connection Log


Centralized management of wireless network certification

Using WPA-Enterprise or WPA2-Enterprise encryption

Must be combined with a wireless router that supports RADIUS authentication

SNMP Server

Supports SNMP v1, v2c, v3 and trap


Syslog server

Supports standard syslog protocol

Graphical log monitoring by time and device

Supports TCP and UDP

Auto log archiving

User-defined email notification

No additional files, specification sheets, guides or documentation found for product.


You can finance this product via Flexirent! For more information regarding flexirent, and to use the flexirent finance calculator, please click here.

The calculator provides an indicative rental cost only. Flexirent prices quoted include GST and stamp duty. Subject to credit approval. To obtain full quote and pre-approval please contact Flexirent Customer Service on 1800 240 102. Rental is payable monthly.

Warranty: 36

Full manufacturers warranty details are available at the manufacturers web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

To apply for return of a product just go to our returns page.

These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

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