Ubiquiti UniFi UNAS 4
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UniFi UNAS 4 – Compact High-Performance NAS with NVMe Cache
The UniFi UNAS 4 is a compact, high-performance network-attached storage system designed for efficient file storage, sharing, and data management within UniFi networks. Featuring four 2.5"/3.5" HDD bays, it provides scalable storage capacity suited to small businesses and professional environments that require flexibility and reliability.
To enhance performance, the UNAS 4 includes two M.2 NVMe SSD cache slots, helping accelerate data access, reduce latency, and improve overall responsiveness for frequently accessed files. With 2.5 GbE networking and USB-C connectivity, it delivers fast and consistent data transfer across modern networks.
An included PoE+++ adapter provides flexible power options while maintaining a clean and compact installation. Designed to integrate seamlessly with the UniFi ecosystem, the UNAS 4 offers centralised storage performance in a space-saving form factor, making it ideal for edge deployments and professional storage environments.
Any EU products are supplied with the appropriate UK power method at no extra cost.
Tech Specs
| Device Specifications | |
|---|---|
| Overview | |
| Dimensions | 246 x 129 x 224.5 mm (9.7 x 5.1 x 8.8") |
| Storage Capacity | (4) 3.5" drive bays (2) M.2 NVMe bays |
| Networking Interface | (1) 2.5 GbE RJ45 (2.5G/1G/100M/10M) |
| Expansion Port | (1) 5 Gbps USB-C |
| Form Factor | Desktop |
| Hardware | |
| Hard Drive Capacity | (4) 2.5" / 3.5" HDD support (2) M.2 NVMe SSD support |
| USB Drive | ✓ |
| Max. Power Budget for Drives | 80W |
| Max. Power Consumption | 90W |
| Power Method | PoE+++ |
| Power Supply | 90W PoE+++ adapter (Included) |
| Processor | Quad-Core ARM® Cortex®-A55 at 1.7 GHz |
| Memory | 4 GB |
| Management | Ethernet |
| RF Interface | Bluetooth 4.1 |
| Display | 1.47" color LCM |
| Weight | 2.6 kg (5.7 lb) |
| Enclosure Material | Polycarbonate |
| LEDs | System ✓ |
| Operating Temperature | -5 to 40° C (23 to 104° F) |
| Operating Humidity | 10 to 90% noncondensing |
| NDAA Compliant | ✓ |
| Certifications | FCC, CE, IC |
| Software | |
| Supported File Protocols | NFS ✓ SMB ✓ |
| RAID Type | RAID 5 RAID 6 RAID 10 |
| RAID Group | Single |
| Personal Drive & Shared Drive | ✓ |
| SSD Cache | ✓ |
| Max. NVMe SSD Capacity Supported | 2 TiB |
| File Encryption | ✓ |
| Backup to Remote UNAS | ✓ |
| Backup to CIFS/SMB Server | ✓ |
| Backup to Cloud Services | Google Drive, OneDrive, Dropbox, Amazon S3, Backblaze B2, Wasabi ✓ |
| Snapshots | ✓ |
| Share Links | ✓ |
| Time Machine Backup | ✓ |
| Client App Support | ✓ |
| User Groups | ✓ |
FAQs
Q1: What is the Ubiquiti UNAS‑4 and what is it used for?
A: The Ubiquiti UNAS‑4 is a network‑attached storage (NAS) enclosure designed to provide scalable storage for UniFi Protect and UniFi network ecosystems. It allows centralised management of video, backups, and shared files on your network.
Q2: How many hard drives can the Ubiquiti UNAS‑4 hold and what storage configurations are possible?
A: The UNAS‑4 features four drive bays, enabling installation of multiple SATA hard drives or SSDs. It supports flexible storage configurations such as RAID for redundancy or performance, depending on user needs.
Q3: How does the Ubiquiti UNAS‑4 connect to a network?
A: The NAS enclosure connects to your network using Gigabit Ethernet, delivering high‑speed data access and efficient sharing of video, backups, and files across connected UniFi devices and clients.
Q4: What applications is the Ubiquiti UNAS‑4 suitable for?
A: The UNAS‑4 is ideal for large UniFi Protect deployments, enterprise data storage, network backups, and small to medium business storage needs where scalable and reliable network storage is required.
Q5: What physical and installation features does the Ubiquiti UNAS‑4 offer?
A: It has a robust chassis with easy‑access drive bays for straightforward installation and maintenance. The enclosure fits into network racks or cabinets and provides a compact yet expandable storage solution.