Ubiquiti UNAS-4 4-Bay 2.5GbE PoE+++ Desktop NAS

Compact Shared Storage with Four Drive Bays

The Ubiquiti UNAS-4 is a desktop network-attached storage system for shared files, backups and personal drives. It brings four 2.5-inch or 3.5-inch drive bays, two M.2 NVMe cache slots and 2.5GbE networking into a compact enclosure. UniFi Drive provides central management, while the included 90W PoE+++ adapter supplies power through Ethernet.

Highlights

Storage and Connectivity

• Four 2.5-inch or 3.5-inch HDD bays with two M.2 NVMe SSD cache slots.
• 2.5GbE RJ45 networking and a 5Gbps USB-C expansion port.

Data Protection

• RAID 5, RAID 6 and RAID 10 support with a single RAID group.
• Snapshots and backups to remote NAS, SMB servers and supported cloud services.

Power and Enclosure

• 90W PoE+++ power adapter included.
• Black and White options with a 1.47-inch colour status display.

Key Features

Storage that fits a desktop

The four drive bays provide room to build a shared storage pool, while the separate NVMe slots support caching. Storage drives are sold separately. Select drives and any required trays for the intended installation; the optional UACC-SSD-Tray supports compatible third-party M.2 NVMe installations.

Faster network access with practical expansion

The 2.5GbE port connects the NAS to a compatible multi-gigabit network. A 5Gbps USB-C port supports USB storage expansion. Actual transfer speeds depend on the drives, network and workload.

Shared files and layered backups

UniFi Drive supports personal and shared drives, SMB and NFS access, user groups and share links. Snapshots, Time Machine backups and remote or cloud backup destinations provide several ways to protect and recover files. RAID availability depends on the installed drive configuration.

Power and setup

The included 90W PoE+++ adapter powers the NAS. Allow for the required Ethernet connections and keep the unit within its specified indoor operating conditions. The front colour display provides a convenient local view of system status.

Summary

The UNAS-4 suits users who want four-bay storage and UniFi Drive management in a desktop format. Choose the Black or White finish, then configure the drives and backup plan for the required capacity and protection.

Ubiquiti UNAS-4 4-Bay 2.5GbE PoE+++ Desktop NAS

The Ubiquiti UNAS-4 is a compact desktop NAS managed through UniFi Drive. Four bays support 2.5-inch or 3.5-inch hard drives, while two M.2 NVMe slots provide SSD caching. It combines 2.5GbE networking with a 5Gbps USB-C expansion port and an included 90W PoE+++ adapter. RAID options, shared drives, snapshots and backup destinations support everyday file management. Black and White finishes share the same hardware specifications. Storage drives are sold separately.