SKU: 20534329061

QNAP TR-004U 4-bay Rackmount USB 3.0 RAID Expansion Enclosure

Sale price$180.95 Regular price$201.06
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Description

QNAP TR-004U 4-bay Rackmount USB 3.0 RAID Expansion EnclosureThe QNAP TR 004U 4 bay Rackmount USB 3. 0 RAID Expansion Enclosure is your essential solution for expanding storage capacity, boosting data security, and optimizing performance in professional environments. Designed for IT professionals, media teams, and power users, this versatile DAS (Direct Attached Storage) unit can function as a standalone expansion or as part of a larger NAS strategy. With a robust 1U rackmount chassis, four hot swappable bays,

The QNAP TR-004U 4-bay Rackmount USB 3.0 RAID Expansion Enclosure is your essential solution for expanding storage capacity, boosting data security, and optimizing performance in professional environments. Designed for IT professionals, media teams, and power users, this versatile DAS (Direct-Attached Storage) unit can function as a standalone expansion or as part of a larger NAS strategy. With a robust 1U rackmount chassis, four hot-swappable bays, and flexible RAID options, the TR-004U blends enterprise-grade reliability with easy-to-use management, making it an ideal companion for growing data needs, video editing workflows, backups, and archival storage. Whether you’re expanding a NAS array or creating a high-capacity DAS that plugs directly into your workstation, the TR-004U delivers fast USB 3.0 performance, solid data protection, and a compact footprint that fits into standard data-center racks or on a workbench in your studio.

  • Expand storage with four hot-swappable bays: The TR-004U provides four 3.5-inch drive bays in a 1U rackmount chassis, allowing you to scale your storage rapidly. Swap drives without powering down the enclosure, keeping your workflow uninterrupted while you upgrade capacity or replace failing drives.
  • USB 3.0 connectivity for speedy transfers: Take advantage of the high-bandwidth USB 3.0 interface to move large media files, backups, and datasets quickly. With up to multi-gigabit transfer speeds, you’ll experience shorter asset transfer times and more productive work sessions.
  • Flexible RAID and data protection options: The TR-004U supports multiple RAID configurations (0, 1, 5, 6, 10) plus JBOD and single-disk mode, giving you excellent control over performance and redundancy. Configure RAID to balance speed and fault tolerance according to your workflow and tolerance for risk.
  • Rackmount design for professional environments: Engineered as a 1U rackmount enclosure, the TR-004U integrates smoothly into data centers, media production suites, or IT closets. Durable metal construction and included rails help you install it securely in standard racks, saving floor space while maintaining accessibility.
  • Versatile use as DAS or NAS extension: Use the TR-004U as a Direct-Attached Storage enclosure to extend a workstation or server, or pair it with compatible NAS solutions to create a scalable, centralized storage pool. Its USB 3.0 interface ensures broad compatibility across Windows, macOS, and Linux environments.

Technical Details of [product]

  • Drive Bays: 4 x 3.5" SATA drive bays (hot-swappable)
  • Interface: USB 3.0 (up to 5 Gbps) for host connection
  • RAID Support: RAID 0, 1, 5, 6, 10, JBOD, Single Disk
  • Form Factor: 1U rackmount chassis with rack ears and drive trays
  • Drive Notification: Drive activity and status indicators for quick health checks
  • Power: External power supply solution suitable for 24/7 operation
  • Compatibility: Designed for Windows, macOS, and Linux environments in DAS configurations
  • Build: Durable metal enclosure optimized for reliability in demanding work settings

How to Install QNAP TR-004U

Installing the QNAP TR-004U is a straightforward process designed for reliability and minimal downtime. Follow these general steps to get the enclosure up and running in your environment:

  • Prepare your drives by ensuring they are compatible 3.5-inch SATA drives with sufficient power and rotational speed for your workload. Use high-quality drives designed for continuous operation when deploying in a professional setting.
  • Mount the TR-004U into a compatible 19-inch rack using the included rails. Secure the enclosure firmly to prevent vibration and movement that could affect drive performance.
  • Install drives into the four hot-swappable bays. Slide each drive tray fully into its bay until it seats with a click, then ensure drive LEDs indicate proper activity.
  • Connect the enclosure to your host system with a USB 3.0 cable. Use a direct USB connection to the computer or server, ensuring the cable supports USB 3.0 speeds to maximize performance.
  • Power on the enclosure and boot your host. Initialize the drives if required and configure your preferred RAID level (0/1/5/6/10, JBOD, or Single Disk) using your operating system’s disk utility, or an appropriate RAID management tool if you are integrating with a NAS or server environment.
  • Format the RAID array or volumes as needed, assign drive letters or mount points on your host, and begin transferring data. For NAS integration, follow your NAS vendor’s guidelines to add the TR-004U as an external storage volume within your storage pool.
  • Verify drive health and performance with a few test transfers to confirm everything is functioning as expected. Regularly monitor drive SMART status and RAID health indicators to maintain reliability.

Frequently asked questions

  • Is the TR-004U hot-swappable? Yes. Each of the four drive bays is hot-swappable, allowing you to replace or upgrade drives without powering down the enclosure.
  • What RAID levels does it support? It supports multiple RAID configurations (0, 1, 5, 6, 10), plus JBOD and Single Disk mode, giving you a balance of performance and redundancy based on your needs.
  • What interfaces are available? The TR-004U uses USB 3.0 for host connectivity, delivering high data-transfer speeds suitable for large media files and backups.
  • Can I use it with a NAS or as a standalone DAS? Both. It can function as a standalone DAS connected to a PC or server, and it can complement NAS deployments by expanding storage pools or providing dedicated backup storage.
  • What kind of drives should I use? Use reliable 3.5-inch SATA hard drives (and SSDs if appropriate) designed for continuous operation in a rackmount environment. Always ensure drives are rated for your workload and backed by a suitable warranty.
  • Is it compatible with Windows, macOS, and Linux? Yes. As a USB 3.0 DAS device, it is generally compatible across major operating systems. For NAS integration, follow the specific OS and software instructions of your NAS or server.
  • What is the form factor and mounting requirement? It is a 1U rackmount enclosure designed to fit standard 19-inch racks, with included mounting rails for secure installation in data centers or studio racks.
  • Do I need special software to manage RAID? In many setups, you can configure RAID at the host level or via the connected NAS. Some configurations may benefit from the enclosure’s built-in management tools if provided by your system.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20534329061

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4.8 ★★★★★
Based on 11 reviews
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Verified Purchase
sicario
Phoenix, US
★★★★★ 5
Excellent Product and Exceptional Quality and Service – Highly Recommend!
I recently purchased the LISEN Car Phone Holder Mount [Military Stable] and couldn’t be more impressed! From the moment I unboxed it, I could tell it was built to last. The design is sleek and modern, and it holds my iPhone 15 Pro Max securely without any wobbling, even during bumpy rides. The military-grade stability lives up to its promise—this mount stays firmly in place, and the adjustable clamps fit my phone perfectly. What really stood out to me was the ease of installation. It attaches to my car vent effortlessly, with no tools required, and doesn’t block any air flow, which is a huge plus. It’s also compatible with various phone models, including the latest iPhone 16, so I know it will be a long-term solution for my future upgrades. In addition to the great product, the customer service from Linsen was outstanding. They provided timely and clear communication, answering all my questions before I made the purchase. It’s rare to experience such excellent support these days, and it made my buying experience even better. If you’re looking for a reliable, sturdy, and easy-to-use car phone holder, this is the one to get! https://www.amazon.com/dp/B0CXLQDY5B Highly recommend!
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Reviewed in the United States on August 10, 2024
O
Verified Purchase
OBSSD
Grantham, US
★★★★★ 4
Well made, but not a good fit for Volvo XC40
One issue with this style of holder, is that the swing arm and holder add a fair amount of weight and extends that weight away from the vent, applying quite a bit more leverage on the vent. It may not be as much of an issue on horizontal vents, but the vertical vents on an XC40 will want to swing side-to-side with all that weight. As for the build of this particular holder, my only real gripe is the adjustment for the swing arm - after tightening the knob, there will still be some play in the arm...you have to jiggle it while tightening it down to fully secure it. The position of the release button allows one-handed removal of the phone, but really only works by pinching with your thumb on the screen. The clip for the vent accommodates relatively wide fins and the tabs can be rotated to help with stability or removed to provide more clearance (though rubberized tabs would be much more helpful).
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Reviewed in the United States on January 9, 2024
M
Verified Purchase
MRF
Birmingham, US
★★★★★ 5
Good solid product
Purchased in February of 2025. Very solid item. Use it constantly in our 2011 4Runner and 2017 CX5. This unit attaches firmly to vent fins in both cars. I use iPhone for maps programs and streaming music. When traveling I'm constantly rotating device 90 degrees to use phone in portrait and landscape positions. Unit has shown no signs of losing ability to firmly hold desired position despite frequent rotations. It holds firmly where you place it. Initially I had concerns about placement on dash and blocking view of radio face, clock, MPG indicator, and other displays. Didn't take too long to realize the flexibility of this thing and the many, many positions you can place it due to multiple rotational joints. Pricing was fair. If this ever wears out, I will want to buy another.
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Reviewed in the United States on December 8, 2025
B
Verified Purchase
bspeakes
Chelsea, US
★★★★★ 5
Happy with purchase, easy to install, exactly what I needed
For many years, I'd been using a similar item with a wedge-type vent mount that finally stretched out and became unusable. When searching for a replacement, I wanted to try one with a different type of mount and I looked at many brands/types of holders. This one seemed to be the best item for the price ($8.99 at the time). So far, I'm very happy with it. I got it in a timely manner, and it was exactly as advertised. I had no problems attaching the hook to the vent fin and securing it. I use it for a GPS, and since the holder is designed to stand out away from the vent a bit, my device is easier to see than previously and details are easier to read. It wobbles, occasionally, but the holder's not loose, at all, and it doesn't affect my ability to read the device. The frame is barely just big enough to hold my GPS, but so far that hasn't been a problem. The device slides into the frame easily, locks securely, and stays put. The holder pops open at the touch of a button on the back, and the device can be removed easily, without issue.
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Reviewed in the United States on December 19, 2023
M
Verified Purchase
Marooned
Carnegie, US
★★★★★ 3
Prevents me from adjusting the air vent up or down
It's true that it doesn't block the air flow. I had to put it on the left passenger side vent to retain the ability to point the driver's air vents where I want. With it over there, I have to turn my head too far to the right when I'm driving to see my phone, and the passenger can't adjust the vent up or down. Also, phone can't tilt as far left and right as other ones. Good price, unique design, easy to install, feels sturdy, holds iPhone SE fine, and doesn't block my view of the entertainment system.
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Reviewed in the United States on March 27, 2026

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