QNAP

QNAP TS-433-4G-US 4 Bay NAS with Quad-core Processor, 4 GB DDR4 RAM and 2.5GbE Network (Diskless)

Name: QNAP TS-433-4G-US 4 Bay NAS with Quad-core Processor, 4 GB DDR4 RAM and 2.5GbE Network (Diskless)
Brand: QNAP
SKU: B0B8M5WQ1Y

Status: QNAP TS-433-4G-US 4 Bay NAS with Quad-core…: Unavailable on Amazon as of 2026-10-18 04:22 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

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Bottom line: The QNAP TS-433-4G-US 4 Bay NAS with Quad-core Processor: 2.5GbE LAN port plus a 1GbE port for faster-than-Gigabit transfers; main trade-off: ARM Cortex-A55 trails Intel NAS chips for transcoding and VMs.

Unavailable on Amazon as of 2026-10-18 04:22 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: Asustor Flashstor 6 FS6706T - 6 Bay All-SSD NAS… — $494.99 on Amazon as of 2026-10-21 16:13 UTC (price may vary).

View Current Price — $494.99

Similar: Asustor Flashstor 12 Pro FS6712X - 12 Bay Pure… — $879.99 on Amazon as of 2026-10-21 04:13 UTC (price may vary).

View Current Price — $879.99

Similar: QNAP TS-216G-US 2-Bay 2.5GbE Desktop NAS — $299.00 on Amazon as of 2026-10-21 12:20 UTC (price may vary).

View Current Price — $299.00

Original listing (currently unavailable) → Compare to similar nas & home servers

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-18

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. About the author →

Pros & Cons

Pros

✓ 2.5GbE LAN port plus a 1GbE port for faster-than-Gigabit transfers
✓ Quad-core ARM Cortex-A55 at 2.0GHz paired with 4GB DDR4
✓ Four SATA 6Gb/s bays for scalable multi-drive storage
✓ AES-NI 256 hardware encryption for volumes and shared folders
✓ NetBak Replicator plus Time Machine backups for Windows and Mac

Cons

✗ ARM Cortex-A55 trails Intel NAS chips for transcoding and VMs
✗ 4GB DDR4 is fixed with no user RAM upgrade path
✗ Only one 2.5GbE port; the second LAN caps at 1GbE

Manufacturer description

The TS-433 is small in size and remains high-performance, cool, and quiet with an effective cooling fan. Powered by a ARM® Cortex-A55 quad-core 2 GHz processor, built-in 4 GB RAM, one Gigabit LAN port, one 2.5 Gigabit LAN port, and supports four SATA 6Gb/s hard drives, the TS-433 provides dependable read/write performance for running various home and business NAS applications. The TS-433 features AES-NI 256 hardware-accelerated encryption for both full NAS volumes and shared folders, boosting system performance while securing sensitive data.

SpecPicks Verdict

SpecPicks scored QNAP TS-433-4G-US 4 Bay NAS with Quad-core Processor 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

ARM Cortex-A55 quad-core 2.0GHz processor with 4 GB DDR4 RAM
Future-proof high speed 2.5GbE port x 1, 1GbE port x 1
Budget-friendly home NAS for file storage and multimedia streaming
Centrally store and organize personal or family photos, music, and videos
Effortlessly backup your Windows Computers with QNAP’s NetBak Replicator software and Mac computers with Time Machine

Full Specifications

Size	4 Bay
Brand	QNAP
Color	black
Weight	4g
Material	Metal
Unit Count	4.0 Count
Model Number	TS-433-4G-US
Compatibility	Mac
Mounting Type	Rack Mount
Built-In Media	AC Adapter, Drive tray keys x 2, Ethernet Cable x 1, Flat head screw (for 2.5" HDD) x12, Flat head screw (for 3.5" HDD) x16, Power Cord, TS-433
Mfr Part Number	TS-433-4G-US
Compatible Devices	Server, Desktop
Enclosure Material	Metal
Is Assembly Required	No
Warranty Description	2 year warranty
Item Dimensions D x W x H	6.3"D x 8.62"W x 6.65"H

Ready to buy?

Amazon shows no buyable offer for QNAP TS-433-4G-US 4 Bay NAS with Quad-core… at the last check. A similar in-stock product is Asustor Flashstor 6 FS6706T - 6 Bay All-SSD NAS…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Similar — $494.99