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QNAP TR-004U 4 Bay Rackmount NAS Expansion - Optional Use as a Direct-Attached Storage Device
QNAP

QNAP TR-004U 4 Bay Rackmount NAS Expansion - Optional Use as a Direct-Attached Storage Device

Bottom line: The QNAP TR-004U 4 Bay Rackmount NAS Expansion is a specs-and-price decision rather than a crowd-consensus one in the nas & home servers category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For NAS and home-server hardware, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ Usb 3.0 Type-C port for faster data transfer
  • ✓ Backed by QNAP's warranty and support channels

Cons

  • ✗ Check the listed dimensions, connectors and platform compatibility against your setup before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

The TR-004U USB 3.0 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 3.0 Type-C Connectivity to bring you a highly-reliable and secure storage capacity expansion solution.

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SpecPicks Verdict

SpecPicks scored QNAP TR-004U 4 Bay Rackmount NAS Expansion using a rating × review-volume × price-fit model applied to published specs and reviews across the nas & home servers category. QNAP's nas & home servers lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for nas & home servers of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Usb 3.0 Type-C port for faster data transfer
  • Supports up to four SATA drives for reliable read and write performance
  • Disk mode dip switch to change from hardware control and software control configurations for setting RAID group
  • Lockable Hard Drive trays to prevent accidental Drive removal
  • Users can configure RAID and monitor disk health using storage & snapshots Manager on a QNAP NAS
  • 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

Full Specifications

Size4 Bay
BrandQNAP
ColorBlack
MaterialPn
ConnectivityUSB
Model NumberTR-004U
CompatibilitySwitch
Mounting TypeRack Mount
Mfr Part NumberTR-004U
Compatible DevicesServer
Enclosure MaterialPn
Item Dimensions D x W x H21.26"D x 16.54"W x 7.87"H
Global Trade Identification Number04713213515778

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QNAP TR-004U 4 Bay Rackmount NAS Expansion - Optional Use as a Direct-Attached Storage Device is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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QNAP TR-004U 4 Bay Rackmount NAS Expansion - Optional Use as a Direct-Attached Storage Device
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