Ubiquiti UniFi NAS 4 (UNAS-4-W) – Desktop Network Attached Storage with NVMe Cache

The Ubiquiti UniFi NAS 4 (UNAS-4-W) is a compact desktop network attached storage solution designed for high-performance file storage, sharing, and backup within the UniFi ecosystem. Featuring (4) 2.5"/3.5" drive bays and (2) M.2 NVMe SSD cache slots, it provides faster data access, improved responsiveness, and reliable storage performance for home offices and small businesses.

Equipped with 2.5 GbE networking, USB-C expansion, and powered via PoE+++ with an included adapter, the UNAS 4 offers flexible deployment while maintaining a compact footprint. Integration with UniFi Drive enables advanced data management, backups, and secure file sharing across multiple devices.

Key Features

• Compact Desktop NAS: Small footprint design for home or office environments
• 4 Drive Bays: Supports (4) 2.5" or 3.5" HDDs
• NVMe SSD Cache: (2) M.2 NVMe slots for improved storage performance
• 2.5 GbE Networking: High-speed Ethernet connectivity
• USB-C Expansion Port: 5 Gbps USB-C interface for additional storage devices
• PoE+++ Powered: Includes 90W PoE+++ power adapter
• Integrated Display: 1.47" color LCM status display
• NDAA Compliant: Suitable for regulated deployments

Hardware Specifications

Software & Data Management

• Supported Protocols: NFS, SMB
• RAID Types: RAID 5, RAID 6, RAID 10
• SSD Cache Support: Yes (Max NVMe capacity supported: 2 TiB)
• File Encryption & Snapshots: Built-in security and versioning
• Backup Options: Remote UNAS, CIFS/SMB servers, or cloud services
• Cloud Backup Support: Google Drive, OneDrive, Dropbox, Amazon S3, Backblaze B2, Wasabi
• Time Machine Support: Yes
• Personal & Shared Drives: Multi-user storage management
• Client App Support: UniFi Drive desktop and mobile apps

The Ubiquiti UniFi NAS 4 combines compact desktop design, high-speed networking, NVMe acceleration, and flexible backup capabilities—making it a powerful storage solution for modern home labs, small businesses, and UniFi-powered environments.