QNAP
QNAP TR-004U 4-Bay USB 3.0 Hardware RAID Enclosure
★★★★★
5 inchUSB 3.0
Rackmount 4-bay USB 3.0 DAS enclosure with hardware RAID for fast, flexible storage expansion in a compact 1U form factor.
$329.00*
Check availability
*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.
Notice a mistake? Let Us Know
Overview
Key Features
High-speed direct-attached storage Device via USB Type-C for Windows, macOS and Linux
Use the TR-004U As external storage for NAS backup
Expand the capacity of your QNAP NAS
Supports up to 4 2. 5/3. 5 inch SATA drives at Gpbs
Hardware RAID supports RAID 0, 1, 5, JBOD, and individual disks
Lockable drive Bays
Specifications
Enclosure Type
Direct Attached Storage (DAS)
Number of Bays
4
Drive Compatibility
2.5" / 3.5" SATA
RAID Support
Hardware RAID 0, 1, 5, JBOD, Individual
Interface
USB 3.0 Type-C
Form Factor
1U Rackmount
OS Compatibility
Windows, macOS, Linux
Drive Bay Security
Lockable
Brand
QNAP
Model
TR-004U
Pros & Cons
👍 Pros
- Hardware RAID controller handles RAID processing independently, reducing CPU load on the host system
- 1U rackmount form factor fits standard server racks for organized, professional deployments
- Lockable drive bays provide physical security against unauthorized drive removal
- Broad OS compatibility with Windows, macOS, and Linux via standard USB 3.0 Type-C connection
👎 Cons
- Limited to four drive bays, which may be insufficient for rapidly growing storage needs
- USB 3.0 interface is slower than dedicated SAS or 10GbE NAS connections for large data transfers
- Does not support hot-swapping drives during RAID rebuild without risk of data loss
- No network connectivity means it cannot function as a standalone NAS without a host device
Frequently Asked Questions
What RAID levels does the TR-004U support?
The TR-004U supports hardware RAID 0, RAID 1, RAID 5, JBOD, and individual disk mode, all managed by its built-in hardware RAID controller without requiring host software.
Can the TR-004U be used as a standalone DAS with a regular computer?
Yes, it connects via USB 3.0 Type-C to any Windows, macOS, or Linux computer and functions as a standard direct-attached storage device, independent of any NAS.
What size and type of drives are compatible with this enclosure?
The TR-004U accepts both 2.5-inch and 3.5-inch SATA hard drives or SSDs, supporting up to four drives total.
Does the TR-004U require software to configure RAID?
No, RAID configuration is handled via hardware switches on the enclosure itself, making setup straightforward without needing to install any software on the host system.
Can this enclosure expand the storage of a QNAP NAS?
Yes, when connected to a compatible QNAP NAS, the TR-004U can serve as a storage expansion unit, adding its bays directly to the NAS storage pool.
Related Products
