The UniFi Network Attached Storage 2 (UNAS-2) is a compact NAS appliance with two drive bays designed for use within the UniFi ecosystem, providing shared network storage managed alongside other UniFi devices through UniFi OS. It supports local and cloud backup integration with other UniFi services. Part of Ubiquiti's UniFi storage product line.
Product released: June 1, 2023
Latest firmware version
Version 5.1.33, released September 10, 2026
Last checked for updates: Sep 16, 2026 15:31 UTC
firmware version history
LatestUpdate has tracked 9 versions of UniFi Network Attached Storage 2 firmware, released between February 16, 2026 and September 10, 2026.
Version 5.1.33 - September 10, 2026
Version 5.1.32 - August 25, 2026
Version 5.1.25 - July 27, 2026
Version 5.1.19 - June 19, 2026
Version 5.1.16 - June 10, 2026
Version 5.1.10 - May 21, 2026
Version 5.1.8 - May 11, 2026
Version 5.0.17 - April 2, 2026
Version 5.0.12 - February 16, 2026
Update prediction
This product was recently updated. The next firmware update is expected between September 28, 2026 and October 22, 2026.
Ubiquiti typically releases firmware updates for this product approximately every 23 days.
The UniFi Network Attached Storage 2 (UNAS-2) is a compact NAS appliance with two drive bays designed for use within the UniFi ecosystem, providing shared network storage managed alongside other UniFi devices through UniFi OS. It supports local and cloud backup integration with other UniFi services. Part of Ubiquiti's UniFi storage product line. It was originally released on June 1, 2023.
What is the latest firmware version of UniFi Network Attached Storage 2?
The latest firmware version of UniFi Network Attached Storage 2 is 5.1.33. It was released on September 10, 2026.
How do I update the UniFi Network Attached Storage 2 firmware?
To update the UniFi Network Attached Storage 2 firmware, download the latest version (5.1.33) from Ubiquiti's website. Follow Ubiquiti's installation instructions, which typically involve copying the firmware file to a memory card or connecting via USB. You can download the latest firmware from Ubiquiti's support page.
How do I check for UniFi Network Attached Storage 2 firmware updates?
You can track UniFi Network Attached Storage 2 firmware updates automatically on LatestUpdate.io. We monitor Ubiquiti's releases and notify you when new firmware versions are available, so you never miss an update.
How often does Ubiquiti release firmware updates for UniFi Network Attached Storage 2?
We have tracked 9 firmware versions of UniFi Network Attached Storage 2. Based on historical patterns, updates are released approximately every 23 days. Ubiquiti releases updates to fix bugs, improve performance, and add new features. Track this product on LatestUpdate.io to be notified of future releases.
When is the next UniFi Network Attached Storage 2 firmware update expected?
UniFi Network Attached Storage 2 was recently updated. Based on this product's update history, the next firmware update is expected between September 28, 2026 and October 22, 2026.
Is UniFi Network Attached Storage 2 still receiving firmware updates?
Yes, UniFi Network Attached Storage 2 received a firmware update within the last month. The most recent version is 5.1.33.
Who makes UniFi Network Attached Storage 2?
UniFi Network Attached Storage 2 is manufactured by Ubiquiti. Visit the official product page for more information.