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All stock codes associated to this product
TR004U, TR-004U, QN15232, TR004U1, TR-004U-1, BAQNTR004U11, BAQN-TR-004U1-1, 4713213515778

QNAP TR-004U 4-bay Rackmount USB 3.2 Gen 1 RAID Expansion Enclosure



The TR-004U USB 3.2 Gen 1 RAID expansion enclosure allows you to expand the capacity of your QNAP NAS and PC. The TR-004U can also be utilized as a DAS (Direct-attached Storage) device, allowing you to directly access its content by connecting it via USB. The TR-004U features four 3.5-inch SATA drive bays with multiple RAID configuration options and USB 3.2 Gen 1 Type-C connectivity to bring you a highly-reliable and secure storage capacity expansion solution.

1. USB 3.2 Gen 1 Type-C port* for faster data transfer.

*Maximum 1M USB cable is recommended.

2. Supports up to four SATA drives for reliable read and write performance.

3. Disk mode DIP switch to change from Hardware Control and Software Control configurations for setting RAID group.

4. Lockable hard drive trays to prevent accidental drive removal.

5. Users can configure RAID and monitor disk health using Storage & Snapshots Manager on a QNAP NAS.

6. Can be used to add storage space to a QNAP NAS, serve as hardware-based RAID storage, and offers cross-platform file sharing for users.



Micro processor with hardware RAID

Drive Bay

4 x 3.5-inch SATA 3Gb/s

The system is shipped without HDD.

For the HDD compatibility list, please visit

Drive Compatibility

3.5-inch SATA 6Gb/s, 3Gb/s hard disk drives

2.5-inch SATA 6Gb/s, 3Gb/s hard disk drives

2.5-inch SATA 6Gb/s, 3Gb/s solid state drives

You can only use one disk type (HDD or SSD) in a RAID group. Combining different types of disk in one RAID group is not supported.

TR-004U does not support the QDA-A2AR/ QDA-A2MAR.



USB 3.2 Gen 1 port

1 x Type-C USB 3.2 Gen 1 (USB 3.2 Gen 1)

Form Factor

1U Rackmount

Dimensions (HxWxD)

44 439 291 mm

Weight (Net)

4.03 kg

Weight (Gross)

5.66 kg

Max. number of HDDs/SSDs supported


Hard Drive Type

4 x 2.5-inch or 3.5-inch SATA 3Gb/s

Operating Temperature

0 - 40 C (32F - 104F)

Storage Temperature

-20 - 70C (-4F - 158F)

Relative Humidity

5-95% RH non-condensing, wet bulb: 27C (80.6F)

Power Supply Unit

Open-frame 100W, Input: 100V-240V ~ / 3.5A, 50Hz-60Hz

Power Consumption: HDD Sleep Mode

4.79 W

Power Consumption: Operating Mode, Typical

18.9 W

Tested with drives fully populated.


2 x 40mm, 12VDC

System Warning


Kensington Security Slot


No additional files, specification sheets, guides or documentation found for product.

Warranty: 2 year return to base

Full manufacturers warranty details are available at the manufacturers web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

To apply for return of a product just go to our returns page.

These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

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