The Asustor Xpanstor 4-Bay NAS Storage Expanderfrom Asustor Xpanstor 4-Bay NAS Storage Expandermay be used to expand the capacity of your NAS and grow your workflow, or use it as a DAS (Direct-attached Storage) solution on your PC. It features four 3.5/2.5" SATA III drive bays and connects to your host system or NAS using its 10 Gb/s USB-C 3.2 Gen 2 port, while remaining backward compatible with 5 Gb/s USB 3.2 Gen 1. An internal 120mm fan helps keep things running cool and automatically adjusts itself according to hard drive temperatures, while support for RAID 0, 1, 5, 6, and 10 offers performance, data redundancy, or a combination of both. For those who do not require a RAID, JBOD and Single allow each drive to be utilized individually.

Designed for ASUSTOR NAS Devices    Plug-and-Play Online Expansion    4 x 3.5/2.5" SATA III Drive Bays    10 Gb/s USB-C 3.2 Gen 2 Port    RAID 0, 1, 5, 6, 10, JBOD, and Single    Supports MyArchive Cold Backups    Smart Power Sync Helps Save Power    Smart Fan for Temperature Control    Also Works as a DAS    Windows, Mac, and Linux Compatible

The Xpanstor 4 adopts a USB-C 3.2 Gen 2 interface and transfers files even faster with a bandwidth of up to 10 Gb/s. The Xpanstor is also backward compatible with ASUSTOR NAS devices that support USB 3.2 Gen 1 and will operate at the 5 Gbps maximum those devices support. Use the Xpanstor to expand the capacity of your NAS to grow your workflow as needed.

The Xpanstor 4 supports MyArchive cold storage technology. Directly insert a MyArchive hard drive into an available bay to access data, making data access extremely convenient. Use MyArchive to also set up schedules for backing up with automatic mounting and unmounting, making your backups simpler and more convenient.

When a connected NAS enters sleep mode or shuts down, the Xpanstor will enter sleep mode simultaneously to save energy and hardware longevity. LED brightness in the Xpanstor 4 also synchronizes with your NAS, ensuring no bright lights when your NAS is off.

The internal fan found inside the Xpanstor 4 automatically adjusts its speed according to hard drive temperatures and maintains a balance between sound and performance.

The Xpanstor 4 has a specially designed USB-C connector and cable. The cable included with your Xpanstor 4 locks in with your expansion unit with two screws on each side of the cable to lock it into the expansion unit to prevent it from being accidentally disconnected. The included USB cable is not proprietary and replaceable, ensuring greater longevity and lower e-waste.

The Xpanstor 4 also works well as a DAS solution. Plug an Xpanstor into a computer to access up to four independent drives that can be used by a Windows, Mac, or Linux machine for applications that include, but are not limited to storage, drive cloning, and diagnostics.

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

Related Questions and Answers

Q: 1. How noisy are these units compared to the desktop versions?

A: This product has a noise level of 39.3 dBA.

Q: 2. There is no USB4/USB5 to use the drives as direct attach storage at higher speeds, is there?

A: The Asustor Flashstor FS6712X 12-Bay NAS Enclosure, B&H # ASFS6712X, does not have USB4 or USB 5 ports for use as direct attached storage.

Q: 3. Can you stack it with 4 4TB drives and continually add more 4TB drives to grow the space?

A: Yes, you could start with four 4TB drives in the Asustor Flashstor FS6712X 12-Bay NAS Enclosure, B&H # ASFS6712X, and add more drives as your storage needs grow.

Q: 4. Does this nas support lossless compression for photo/video?

A: Yes, you can store lossless compressed files on the Asustor Drivestor 2 Lite 2-Bay NAS Enclosure.

Q: 5. Can it hold 18tb and above in the box ?

A: Yes. At this time this Asustor DRIVESTOR 4 AS1104T 4-Bay NAS Enclosure BH #AS1104T • MFR #AS1104T would support 18TB and above.

Q: 6. Will this work with Apple computers?

A: You can use the Synology DiskStation DS1821+ 8-Bay NAS Enclosure with PC, Apple, and Linux computers.

Q: 7. Does this come with hard drives?

A: No, the Synology DiskStation DS223j 2-Bay NAS Enclosure does not include hard drives.

Q: 8. Does the cooling fan run continuously and is it loud?

A: the fan will run as needed. The NAS has a noise rating of 19.7 dBA.

Q: 9. As of now the design factor looks like if i want to upgrade this with 10G Ethernet network adapter, i *cannot use four M.2 2280 NVMe* ? please confirm

A: Yes, this is correct. The Installation of 10GbE NIC requires removal of M.2 daughterboard.

Q: 10. is it included pre installed disk drives?

A: The Asustor Drivestor 2 Lite 2-Bay NAS Enclosure does not include pre-installed disk drives.