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QNAP TS-433-4G-48WD-US 24TB 4-Bay NAS WD Red RAID — main product image
QNAP TS-433-4G-48WD-US 24TB 4-Bay NAS WD Red RAID
QNAP TS-433-4G-48WD-US 24TB 4-Bay NAS WD Red RAID
QNAP TS-433-4G-48WD-US 24TB 4-Bay NAS WD Red RAID
QNAP TS-433-4G-48WD-US 24TB 4-Bay NAS WD Red RAID
QNAP TS-433-4G-48WD-US 24TB 4-Bay NAS WD Red RAID
QNAP TS-433-4G-48WD-US 24TB 4-Bay NAS WD Red RAID
QNAP

QNAP TS-433-4G-48WD-US 24TB 4-Bay NAS WD Red RAID

★★★★★4.1 (204 reviews)
2GB DDR4USB 2.0USB 3.2

Ready-to-go 24TB NAS with RAID 5 protection — just plug in and start storing.

$1,099.00*
Check availability

*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The QNAP TS-433-4G-48WD-US is a preconfigured 4-bay NAS bundle that pairs QNAP's TS-433 enclosure with four 8TB Western Digital Red Plus hard drives, all set up in RAID 5 out of the box. This means you get roughly 21–22TB of usable storage with single-drive fault tolerance from the moment you plug it in and connect it to your network. The ARM quad-core Cortex-A55 processor running at 2.0GHz handles everyday NAS duties — file sharing, automated backups, and lightweight app hosting — without drawing excessive power or generating much noise.

Where the TS-433 shows its budget-friendly positioning is in its fixed 2GB DDR4 RAM and single Gigabit Ethernet port. You won't be running memory-intensive containers or saturating a 2.5GbE network link on this unit. However, for small offices, home labs, or creative professionals who need a centralized, always-on repository for project files, media libraries, or Time Machine backups, the combination of proven NAS-rated drives and QNAP's mature QTS operating system delivers a dependable storage appliance that requires minimal ongoing maintenance.

Key Features

Four 8TB WD Red Plus Pre-Installed and Pre-Configured with RAID 5

ARM 4-core Cortex-A55 2.0GHz processor; 2GB DDR4 (not expandable)

1 x Gigabit Ethernet Port (RJ45); 2 x 3. 5-inch SATA 6Gb/s, 3Gb/s; 1 x USB 2.0 port; 2 x USB 3.2 Gen 1 port

Specifications

Brand
QNAP
Model
TS-433-4G-48WD-US
Drive Bays
4 x 3.5-inch SATA 6Gb/s
Included Drives
4 x 8TB WD Red Plus HDD
Total Raw Capacity
24TB
RAID Configuration
Preconfigured RAID 5
Processor
ARM Quad-Core Cortex-A55, 2.0GHz
Memory
2GB DDR4 (not expandable)
Network
1 x Gigabit Ethernet
USB Ports
2 x USB 3.2 Gen 1, 1 x USB 2.0

Pros & Cons

👍 Pros

  • Ships fully assembled with four WD Red Plus NAS-rated drives and RAID 5 already configured, eliminating setup guesswork.
  • WD Red Plus drives are specifically designed for always-on NAS environments with vibration tolerance and low power draw.
  • RAID 5 provides a good balance of usable capacity and data protection against a single drive failure.
  • Compact 4-bay form factor keeps the footprint small for home offices and small businesses.
  • Two USB 3.2 Gen 1 ports allow direct backup from external drives without network overhead.

👎 Cons

  • The 2GB non-expandable RAM limits multitasking and rules out memory-hungry apps like large-scale virtual machines or heavy Docker workloads.
  • Only a single Gigabit Ethernet port with no 2.5GbE or 10GbE option caps network throughput at around 110 MB/s.
  • The ARM Cortex-A55 processor cannot handle real-time media transcoding for services like Plex.
  • No HDMI output means you cannot connect a display directly for local media playback.
  • At 24TB raw in RAID 5, usable space is roughly 21–22TB with no room to add more bays.

Frequently Asked Questions

It ships preconfigured in RAID 5 across four 8TB WD Red Plus drives, giving you approximately 24TB raw (around 21–22TB usable) with single-drive fault tolerance.
No. The TS-433 comes with 2GB of DDR4 RAM that is soldered and not user-expandable.
It has a single Gigabit Ethernet port, so throughput is limited to roughly 110–120 MB/s shared across all connected clients. There is no link aggregation or multi-gig option on this model.
Because it's configured in RAID 5, the NAS will continue operating normally with a degraded array. You can replace the failed drive and the array will rebuild automatically.
Yes, QNAP's QTS operating system supports a wide range of apps through its App Center, including media servers and surveillance station, though the ARM processor and 2GB RAM will limit heavy transcoding workloads.

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