
QNAP
QNAP TS-233-24W-US 2-Bay NAS 4TB WD Red Bundle
2GB DDR424WUSB 2.0USB 3.2
A ready-to-go 2-bay NAS with pre-installed WD Red Plus drives in RAID 1 for effortless home data protection.
$409.00*
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*Price sourced from Amazon.com. Last updated:Aug 28, 2026.Price and availability are subject to change — details.
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Overview
Key Features
Two 4TB WD Red Plus Drives Pre-Installed and Pre-Configured with RAID 1. Hassle-free!
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
Processor
ARM 4-core Cortex-A55, 2.0GHz
Memory
2GB DDR4 (not expandable)
Pre-Installed Storage
2 x 4TB WD Red Plus (RAID 1)
Drive Bays
2 x 3.5-inch SATA 6Gb/s / 3Gb/s
Ethernet
1 x Gigabit RJ45
USB Ports
2 x USB 3.2 Gen 1, 1 x USB 2.0
ASIN
B0CGW2DD4Z
Frequently Asked Questions
What does the RAID 1 configuration mean for my storage capacity?
RAID 1 mirrors data across both drives, so while two 4TB drives are installed, your usable storage is 2TB. The benefit is that if one drive fails, your data remains intact on the other.
Can I upgrade the RAM beyond the included 2GB?
No. The TS-233 comes with 2GB of DDR4 memory that is soldered and not expandable.
Does this NAS require any setup or drive installation out of the box?
No. The two WD Red Plus drives come pre-installed and pre-configured in RAID 1, so you can connect the NAS to your network and start using it immediately.
What operating system does this NAS run?
It runs QNAP's QTS operating system, which provides a web-based interface for file management, multimedia streaming, backups, and app installation.
Can I replace the included drives with larger ones later?
Yes. The two 3.5-inch SATA bays support standard SATA drives, so you can swap in larger-capacity drives when needed.