High performance technology

An Intel Celeron 2.0GHz dual-core processor and 1GB DDR3L memory, provide premium, energy efficient processing power. With read/write speeds of up to 112 MB/s, the AS51 series’ excellent performance is sure to satisfy your storage application needs. Furthermore, when AS51 series devices need more computing power, they can increase the CPU computing power from the original 2.0 GHz to 2.41 GHz, providing a smooth and seamless experience.

*Performance results may differ depending on the testing environment.

Metallic design

Different from other NAS devices on the market which feature plastic cases and suboptimal cooling, the AS50/51 devices feature aluminum casing along with a rust and corrosion resistant coating which combines with the metallic hard disk trays to fully make use of the natural cooling properties of metal. This significantly enhances the entire cooling ability of the system.

Secure Disk Tray Lock Design

In order to help users avoid accidentally pushing disk tray buttons and releasing hard disks during operation, ASUSTOR has added a new lock mechanism to its hard disk trays. The lock's flat-head design ensures that users will not need any special keys or tools to unlock it, only a simple flat-head screw driver. The new disks trays can be used with all ASUSTOR NAS devices, providing an additional layer of security for applications requiring the frequent swapping of hard disks (e.g., MyArchive).

Expand your storage space

A professional grade NAS needs to be equipped with a diverse array of expansion functionality. In addition to the 4 drive bays, we have also included 2 USB 2.0 ports, 3 USB 3.0 ports and 2 eSATA ports, allowing you to create a tailored storage space for both your work and entertainment needs.
AS50/51 devices emphasize the flexibility of expandable capacity, providing more expansion slots than any other devices in their class. With this many expansion slots, the only question that remains is how you are going to fill up all that storage space!

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 AS5102T consumes only 8.7 W of power. Under normal operating conditions it still only consumes 17.7 W of power. Combined with the S3 instant wake function, this allows for a large degree of flexibility when configuring power schedules for your NAS, allowing you to significantly decrease the amount of power you use.

*Performance results may differ depending on the testing environment.

Increased reliability and speed

The built-in dual Ethernet ports combined with the link aggregation function, allows your NAS to maintain its connection even if one of your Ethernet connections fail, significantly decreasing the likelihood of unexpected disconnections.Additionally, link aggregation provides faster transfer speeds than a single connection could, along with load balancing which automatically balances network traffic load across the two connections, making it the optimal choice for users who require high speed reliability.

Even More Reliable After-Sales Service

ASUSTOR has extended the warranty period on all of its products to three years, continuing to make customer service a huge priority. It is ASUSTOR's mission to continue to provide its customers with products of the highest quality along with only the most reliable and attentive after-sales service and technical support.

Cross-platform File Sharing

ASUSTOR NAS devices provide seamless cross-platform file sharing, allowing you to easily connect to your NAS device no matter if you are using Windows, Mac OS, or Unix-like operating systems. The transfer protocols that you may use to connect to an ASUSTOR NAS device are as follows:

Windows: CIFS/SMB, FTP and WebDAV
Mac OS X: AFP, SMB, NFS, FTP and WebDAV
Linux: NFS, SMB, FTP and WebDAV

Additionally, ASUSTOR NAS devices feature our Network Recycle Bin. Any files you delete will be moved to the Recycle Bin, allowing you to restore any accidentally deleted files. Transfer protocols supported by the Recycle Bin include: CIFS/SMB, AFP, FTP and File Explorer.