QNAP 4-bay 1U 12 short-depth rackmount 3.5in SATA HDD USB 3.0 type-C hardware RAID external enclosure

The TR-004U USB 3.2 Gen 1 RAID expansion enclosure allows you to expand the capacity of your QNAP NAS and PCs. The TR-004U can also be used as a DAS (direct-attached storage) device, allowing you to access its contents directly by connecting it via USB. The TR-004U is equipped with four 3.5“ SATA drive bays with multiple RAID configuration options and USB 3.2 Gen 1 Type-C connectivity, providing you with a highly reliable and secure storage expansion solution.

Supports multiple RAID levels
The TR-004U supports a wide range of RAID configurations. You can switch between hardware- or software-controlled RAID modes as needed. Set the DIP switches to the appropriate positions for your ideal RAID mode: Single, JBOD, RAID 0, RAID 1/10, or RAID 5. You can also configure the RAID settings via your QNAP NAS or using the QNAP External RAID Manager utility on your computer.

Single mode
Treats each disk as a separate storage space, allowing you to access each disk independently.

JBOD mode
All disks are recognized as a single drive. This allows for maximum storage utilization but does not provide data protection.

RAID 0 mode
The data is distributed among the drives. RAID 0 offers the fastest performance but does not protect the data from drive failure.

RAID 1/10 mode
Half of the total storage capacity is used for data storage, and the other half retains a copy of that data. This provides high data protection; however, you can only use half of the installed storage space.

RAID 5 mode
RAID 5 requires at least three drives, and parity information is distributed across the drives, providing optimized storage capacity and protection against hard drive failure.

Software Ctrl mode
Use this mode to control the RAID configuration from your NAS or computer.

Flexible storage configuration and management
Compared to other RAID enclosures, the TR-004U offers software-controlled configurations for greater management flexibility. Users can configure RAID and monitor disk health with the Storage & Snapshots Manager on a QNAP NAS or with the QNAP External RAID Manager utility on their computer.

Versatile usage scenarios to meet storage expansion requirements
The TR-004U meets many storage expansion needs for home and work use, including:

Scenario 1: Expanding the capacity of your NAS
The TR-004U provides an alternative method for users to expand the storage capacity of their rackmount NAS. By connecting the TR-004U to their NAS and using the Storage & Snapshots Manager, users can easily configure and manage their storage expansion. The TR-004U supports a variety of QNAP NAS storage and file management features, allowing users to create storage pools, search for files with Qsirch, and organize files with Qfiling.

Using the TR-004U as an alternative to traditional NAS expansion enclosures
As an external hardware RAID device, the TR-004U operates independently and requires no additional NAS system resources. Compared to the UX-500P expansion enclosure, the TR-004U uses fewer NAS system resources.

Scenario 2: External storage for your NAS
Instead of using the TR-004U to expand the capacity of your QNAP NAS, you can use it as an additional storage unit for backup or data transfer. You can also physically migrate large data collections that require significant network bandwidth. While connected to the NAS, you can monitor the status of the TR-004U using the Storage & Snapshots Manager on the NAS.

Scenario 3: Expanding the storage space of your computer and server
The TR-004U can quickly add storage space to your computer and server. You can use the DIP switch to configure a hardware RAID mode or manage it with the QNAP External RAID Manager utility. The status of the TR-004U can also be monitored with the QNAP External RAID Manager utility.
*QNAP External RAID Manager requires Windows 7 (or later), Windows Server 2012 R2 (or later), and macOS 10.13 (or later).

Scenario 4: Cross-platform file sharing
From your NAS to Windows, Mac, and Linux computers, the TR-004U is compatible with a wide range of devices. This makes it ideal for quickly moving large files between different devices. The TR-004U is even compatible with devices that use the exFAT file system*, making accessing and sharing files from a larger number of devices even more convenient.
*To access devices that use the exFAT file system, users must purchase a separate exFAT driver license.