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QNAP TVS-h674T-i5-32G NAS Buying Guide

Product facts and dated cost

QNAP TVS-h674T-i5-32G · Exact identity: TVS-h674T-i5-32G-US

6 primary bays · 12th-gen Core i5 · 32GB · dual Thunderbolt 4 · dual 2.5GbE · Diskless: hard drives cost extra

Catalog amount: $2,489.99 · historical · Price record: 2026-09-27T04:06:39.948321+00:00. Tax and shipping excluded.

Historical price observation. Recheck the price and availability before buying; this is not a current offer.

TVS-h674T-i5-32G: specifications and dated store comparison →

Six-bay i5-12400 Thunderbolt 4 NAS for creators who will sit next to it and add fast SSDs.

Exact US MPN TVS-h674T-i5-32G-US; official hardware table TVS-h674T-i5-32G; 32 GB SODIMM DDR4; 6 x 3.5-inch SATA 6Gb/s, 3Gb/s.

Based on the official TVS-h674T hardware/software tables (OS rows labelled QTS 5.2.9 / QuTS hero h5.2.9), a separately sourced QuTS hero h6.0.2.3591 (2026-08-24) applicable-models list, and 2 applicable original review record(s). We have not tested this NAS. Related other-SKU tests stay labelled related. See the review evidence ↓

QNAP TVS-h674T-i5-32G network attached storage system

Is the TVS-h674T-i5-32G right for you?

Thunderbolt creative workgroups

Official dual Thunderbolt 4 plus i5-12400/32 GB for local creative clients.[1]

Good fit

Six-bay ZFS media storage

TechRadar ~600/1700 MB/s needed SSD cache and did not hit 40 Gbps; LSA mixed-folder writes fell to ~800 MB/s.[1]

Good with planning

You do not need Thunderbolt

Slot 2 is pre-filled with the TB4 card; desk noise and a missing TB4 cable are recurring complaints.[1]

Look elsewhere

Key specifications

Full specifications ↗

Follow any specification for its full conditions and sources.

Living with it

Hardware, storage and network planning

01

The exact factory configuration matters

This page covers TVS-h674T-i5-32G-US, mapped to official table TVS-h674T (i5-12400 / 32 GB column). CPU: Intel® Core™ i5-12400 6-core/12-thread Processor, burst up to 4.4 GHz. Factory memory: 32 GB SODIMM DDR4. Drive bays: 6 x 3.5-inch SATA 6Gb/s, 3Gb/s. US store SKU TVS-h674T-i5-32G-US matched the opened manufacturer PDP.[1][2]

02

Spec-table OS rows are not the newest firmware claim

The hardware spec page still publishes QTS 5.2.9 and QuTS hero h5.2.9 feature tables; those rows stay version-bound. QuTS hero h6.0.2.3591 (build 20260819, notes dated 2026-08-24) lists TVS-h474/TVS-h674/TVS-h874/TVS-h874X/TVS-h674T/TVS-h874T as applicable. TVS-h674T is in that family string. Exact -i3/-i5/-i7/-i9/-R5 RAM SKUs are not itemized. This page does not claim every 5.2.9 table feature is unchanged on h6.0.2.[1][6]

03

Plan storage and networking together

Advertised port speed is not one-file throughput. Drive count, RAID, protocol, client NICs and the switch each cap the result. Independent 9 Gbit/s-class numbers in this family used add-in 10GbE, not the stock 2.5GbE pair.[1]

04

Read measured results with their setup

Applicable original testing exists for this exact factory configuration. Read drives, RAID, network, client and OS with every figure. These are not ChooseCompute measurements.[4][5]

What original testing found

Our buying advice combines official specifications with the original reviews below. We have not tested this product ourselves. Expand a review for its setup, measurements and limitations.

TechRadar

Nick RossJan 4, 2024

Thunderbolt 4 with SSD cache, not 40 Gbps

Nick Ross measured about 600 MB/s write and 1,700 MB/s read over Thunderbolt 4 with SSD cache on the i5/32GB TVS-h674T. Drives were unnamed.

Read the original review
Test setup, measurements & limitations

QNAP TVS-h674T NAS review

Tested: TVS-h674T with Intel Core i5-12400, 32 GB DDR4 (2x16 GB non-ECC), QuTS hero 5.1.4, Thunderbolt 4 with SSD cache. Drive models not named in the opened extract.

Applies to: Exact TVS-h674T i5-12400 / 32 GB. Thunderbolt 4 here is QNAP Thunderbolt networking (file share), not a USB/block DAS. SSD-cache path; drive models unnamed. Not native 2.5GbE.

  • With SSD cache, the reviewer reported writes around 600 MB/s and reads reaching 1,700 MB/s. The host, disk set and detailed path were not disclosed.Source location: In use
  • The reviewer found setup straightforward and the chassis quiet under load; no sound-level measurement was supplied.Source location: Verdict / In use
Measurements reported by the reviewer
MeasurementResultConditions & source location
Thunderbolt 4 with SSD cacheWrite ~600 MB/s; read ~1,700 MB/sNot 40 Gbps; file types and network environment limited the result. Drives unnamed.In use

Limits to keep in mind

  • Drive models and RAID not named in the opened extract.
  • Do not copy 'upgradable to 32 GB'; official max is 64 GB.
  • 40Gbps describes the Thunderbolt port link rate, not a guaranteed NAS file-transfer rate. The article also misidentifies the front port; the official specification controls.
Letem svetem Applem

Jiří FilipApr 8, 2024

AJA ~1.7 GB/s; mixed folders much slower to write

Letem svetem Applem's i5/32GB T unit did ~1,760/1,740 MB/s in AJA, ~1,900/2,070 MB/s on a 1GB video, and ~800 MB/s writing mixed folders.

Read the original review
Test setup, measurements & limitations

Thunderbolt 4 NAS Review QNAP TVS-h674T: Mac Pro among NASes

Tested: Review TVS-h674T with i5-12400 and 32 GB SODIMM DDR4; Thunderbolt 4 to Mac/Windows. Storage media not fully named in the extract.

Applies to: Exact TVS-h674T i5-12400 / 32 GB Thunderbolt 4 file-copy/AJA path. Not 2.5GbE. Media/RAID not fully named. Companion YouTube not transcribed.

  • AJA System Test stayed around 1,760 MB/s write and 1,740 MB/s read over Thunderbolt 4.Source location: Testing
  • A 1GB video copy was about 1,900/2,070 MB/s read/write on Windows; mixed folders fell to ~1,700 MB/s read and ~800 MB/s write.Source location: Testing
  • Time Machine and Plex were described as smooth versus the author's TS-233, without named transcode streams.Source location: Testing
Measurements reported by the reviewer
MeasurementResultConditions & source location
AJA System Test Thunderbolt 4~1,760 MB/s write; ~1,740 MB/s readReviewer's TB4 host; media unnamedTesting
1GB video copy Windows~1,900 MB/s read; ~2,070 MB/s writeThunderbolt 4Testing
Mixed-type folder copy~1,700 MB/s read; ~800 MB/s writeMany small/varied files over Thunderbolt 4Testing

Limits to keep in mind

  • RAID/drive set not fully disclosed.
  • Wireless/2.5GbE figures were not the point of the test.
  • Embedded YouTube was not read as ASR/frames this round.
  • The text mixes AJA, disk benchmarks and file-copy descriptions without fully separating their methods; do not interpret the numbers as a reproducible sustained-copy guarantee.
  • The claim that a non-Thunderbolt USB-C computer gets 10Gbps direct NAS access is not adopted. A USB-C connector alone does not establish a supported Thunderbolt host connection.

Common HDD combinations

Examples ordered by recorded drive unit price, which may be historical or an editorial reference. Check capacity, vendor compatibility, included storage and price evidence before choosing. These are component checks, not compatibility certifications.

  • TVS-h674T-i5-32G + 2 × WD Red Plus 2TB (WD20EFPX, 2TB each) →

    Component total: $2,799.97 · historical · Oldest price record: 2026-09-27T04:06:39.948321+00:00 · 4TB raw, before redundancy.

    Historical price estimate. Calculated from separately purchased components, not a complete-system offer. NAS price record: 2026-09-27T04:06:39.948321+00:00; drive price record: 2026-10-09T01:23:41.974420+00:00. Historical price observation. Recheck the price and availability before buying; this is not a current offer. Historical price observation. Recheck the price and availability before buying; this is not a current offer. Recheck component prices, stock, shipping and tax at the stores before purchase; even recent checks do not guarantee live prices.

  • TVS-h674T-i5-32G + 2 × IronWolf 4TB (ST4000VN006, 4TB each) →

    Component total: $2,869.97 · historical · Oldest price record: 2026-09-27T04:06:39.948321+00:00 · 8TB raw, before redundancy.

    Historical price estimate. Calculated from separately purchased components, not a complete-system offer. NAS price record: 2026-09-27T04:06:39.948321+00:00; drive price record: 2026-10-09T03:58:24.994342+00:00. Historical price observation. Recheck the price and availability before buying; this is not a current offer. Price observed at the store on the shown date. Confirm the current price and availability at the store. Recheck component prices, stock, shipping and tax at the stores before purchase; even recent checks do not guarantee live prices.

  • TVS-h674T-i5-32G + 2 × WD Red Plus 4TB (WD40EFZZ, 4TB each) →

    Component total: $2,879.97 · historical · Oldest price record: 2026-09-27T04:06:39.948321+00:00 · 8TB raw, before redundancy.

    Historical price estimate. Calculated from separately purchased components, not a complete-system offer. NAS price record: 2026-09-27T04:06:39.948321+00:00; drive price record: 2026-09-27T13:58:17.239646+00:00. Historical price observation. Recheck the price and availability before buying; this is not a current offer. Historical price observation. Recheck the price and availability before buying; this is not a current offer. Recheck component prices, stock, shipping and tax at the stores before purchase; even recent checks do not guarantee live prices.

  • TVS-h674T-i5-32G + 6 × WD Red Plus 2TB (WD20EFPX, 2TB each) →

    Component total: $3,419.93 · historical · Oldest price record: 2026-09-27T04:06:39.948321+00:00 · 12TB raw, before redundancy.

    Historical price estimate. Calculated from separately purchased components, not a complete-system offer. NAS price record: 2026-09-27T04:06:39.948321+00:00; drive price record: 2026-10-09T01:23:41.974420+00:00. Historical price observation. Recheck the price and availability before buying; this is not a current offer. Historical price observation. Recheck the price and availability before buying; this is not a current offer. Recheck component prices, stock, shipping and tax at the stores before purchase; even recent checks do not guarantee live prices.

  • TVS-h674T-i5-32G + 6 × IronWolf 4TB (ST4000VN006, 4TB each) →

    Component total: $3,629.93 · historical · Oldest price record: 2026-09-27T04:06:39.948321+00:00 · 24TB raw, before redundancy.

    Historical price estimate. Calculated from separately purchased components, not a complete-system offer. NAS price record: 2026-09-27T04:06:39.948321+00:00; drive price record: 2026-10-09T03:58:24.994342+00:00. Historical price observation. Recheck the price and availability before buying; this is not a current offer. Price observed at the store on the shown date. Confirm the current price and availability at the store. Recheck component prices, stock, shipping and tax at the stores before purchase; even recent checks do not guarantee live prices.

Before you buy

US listings and ownership costs

Budget the complete storage system

Budget for drives, a UPS and a separate backup target. Faster Ethernet requires compatible network hardware; Thunderbolt models also need a suitable host and cable. The reviewed Thunderbolt packages did not include a cable.[1]

Treat listings as dated evidence

Prices and stock are dated observations. QNAP Store listings retain an earlier identity check with price and availability unconfirmed; check the linked retailer for the exact configuration, current total and delivery terms.[2][3]

Compare stores for this exact model

Exact US MPN TVS-h674T-i5-32G-US; official hardware table TVS-h674T-i5-32G; 32 GB SODIMM DDR4; 6 x 3.5-inch SATA 6Gb/s, 3Gb/s. Check the total delivered price at the store.

Lowest observed price

$2,499

In stock at observation

Currency not confirmed

4 stores · 1 recent price observation

QNAP Store

Sold by QNAP Inc.

$2,499

Observed price

Currency not confirmed

In stock at observation · Condition not recorded

Observed Oct 9, 2026, 3:55:24 AM UTC[7]

View exact product at QNAP Store

Adorama

Seller not recorded

$2,489.99

Historical price

Currency not confirmed

Stock not confirmed · Condition not recorded

Observed Sep 27, 2026, 4:06:39 AM UTC[8]

View exact product at Adorama

B&H Photo

Sold by B&H Photo

Check price

Stock not confirmed · New

Diskless 6-bay Thunderbolt 4; i5-12400; 32 GB

B&H showed Free 2-Day Shipping on in-stock pages in the extract; confirm destination at checkout. US retailer. Confirm MPN, diskless contents, tax and returns on the live page. Do not copy merchant GPU/power fields that conflict with the official table.

Observed Sep 11, 2026[3]

View exact product at B&H Photo

Prices are dated observations. Confirm the model, seller, condition, stock and delivered total at the store. Older prices remain visible as history. Links may earn a commission.

Questions before buying

Which TVS-h674T-i5-32G-US configuration does this page cover?

Exact US MPN TVS-h674T-i5-32G-US. Official hardware-table heading used: TVS-h674T (i5-12400 / 32 GB column).[1][2]

Are drives included?

These offers cover the enclosure. Confirm the exact drive and accessory contents on the retailer page, especially if it lists a bundle.[2]

What network or Thunderbolt plan should I make?

Official dual Thunderbolt 4 (Slot 2 occupied) plus two 2.5GbE. Independent TB4 figures needed SSD cache or unnamed fast media and did not hit 40 Gbps.[1]

Has ChooseCompute tested this NAS?

No. This guide synthesizes QNAP tables and 2 applicable original review record(s). Related SKUs are labelled related.[1]

Is the listed price current?

Treat the displayed price and availability as dated observations. QNAP Store price and stock remain unconfirmed; open the retailer listing to confirm the exact model and current total.[2]

Is QTS 5.2.9 / QuTS hero h5.2.9 the latest firmware?

No. Those strings are the OS rows on the current hardware spec tables. A later published branch, QuTS hero h6.0.2.3591 build 20260819 (2026-08-24), lists TVS-h474/TVS-h674/TVS-h874/TVS-h874X/TVS-h674T/TVS-h874T. TVS-h674T appears there. That is applicability of that release note, not a recrawl of every feature cell, and not a promise every optional NIC still works (LAN-10G1SR cards are called out as h5-only).[1][6]

Sources

Research updated Sep 11, 2026. Individual source check dates are listed below. Measurements belong to the named reviewers; tested configurations and software versions may differ from the product you buy.

  1. [1] QNAP TVS-h674T (i5-12400 / 32 GB column) hardware/software tables ↗

    Checked Sep 11, 2026 · Hardware column TVS-h674T (i5-12400 / 32 GB column); QTS 5.2.9 and QuTS hero h5.2.9 tabs on the same opened page. Footnotes on memory modules and WD10EFRX power tests retained.

  2. [2] QNAP Store TVS-h674T-i5-32G-US product page ↗

    Checked Sep 10, 2026 · Page title 'TVS-h674T-i5-32G-US'; exact MPN present in the opened response. Exact US MPN in the opened manufacturer-store PDP; current price and stock were not asserted.

  3. [3] B&H QNAP TVS-h674T-i5-32G US PDP ↗

    Checked Sep 11, 2026 · In Stock; TVS-H674T; i5-12400; 32 GB; dual Thunderbolt 4. Numeric price not in extract.

  4. [4] TechRadar QNAP TVS-h674T NAS review ↗

    Checked Sep 11, 2026 · Nick Ross 2024-01-04; i5-12400/32GB; TB4 ~600/1700 MB/s with SSD cache.

  5. [5] Letem svetem Applem TVS-h674T Thunderbolt 4 review ↗

    Checked Sep 11, 2026 · 2024-04-08; AJA ~1760/1740 MB/s; mixed-folder write ~800 MB/s.

  6. [6] QuTS hero h6.0.2.3591 build 20260819 release notes ↗

    Checked Sep 11, 2026 · Title/date 2026-08-24; Applicable Models family strings (not per-RAM SKUs). Hardware-page OS rows remain QTS 5.2.9 / QuTS hero h5.2.9 table labels.

  7. [7] QNAP product price observation ↗

    Checked Oct 9, 2026 · Captured observation; sha256:1027517a2236dffcbed187db536bc1b7ed049fe83a5528c8ce5784a579cf6134

  8. [8] Adorama product price observation ↗

    Checked Sep 27, 2026 · Captured observation; sha256:a22d74e79bb6e4f62427c528bc1384141fba507fb436326fc7ef3b42002c14ff

Research and review record

  • Research: Grok 4.6 · Source research and data update
  • Self-check: Grok 4.6 · Researcher self-check
  • Independent review: GPT-6 (Codex) · Independent full available original article review, recorded chart readings and exact core hardware-column verification. Software tables remain bound to their captured versions; unavailable original videos and detailed method gaps remain disclosed. Historical store quotes are not refreshed from generic wrappers.
  • Editorial integration: GPT-6 (Codex) · Editorial integration and validation

Independent review completed for the scope recorded in the audit.

Source evidence and review history (JSON)

How we research products·Affiliate disclosure