QNAP

QNAP TVS-672XT-i3-8G-68S 40TB 6-Bay Thunderbolt 3 NAS RAID 5

40TB RAID 5 pre-configured on Thunderbolt 3 with a 10GbE port — this NAS ships ready to ingest 4K video at wire speed.

$4,598.00*
In Stock on Amazon.com
View on Amazon

*Price sourced from Amazon.com. Last updated:Jun 20, 2026.Price and availability are subject to change.

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

The QNAP TVS-672XT-i3-8G-68S is a 6-bay NAS engineered around two interface technologies that fundamentally change what network-attached storage can do: Thunderbolt 3 at 40Gbps and 10GBase-T Ethernet at 10Gbps. The unit ships pre-loaded with six Seagate IronWolf 8TB drives in a RAID 5 configuration, delivering approximately 40TB of usable, fault-tolerant storage ready to deploy. The Intel Core i3-8100T quad-core processor at 3.1 GHz handles QNAP's QTS operating system, RAID parity calculations, and hardware video transcoding through its UHD Graphics 630 engine. The 8GB DDR4 SODIMM baseline is functional for initial deployment but the platform's 64GB maximum capacity signals that this hardware was designed for memory-intensive caching and virtualization use cases.

This NAS is built for content creators, post-production facilities, and small creative studios where storage throughput — not just capacity — is the limiting factor in daily workflow. A video editor connected via Thunderbolt 3 sees the TVS-672XT effectively as a directly attached RAID array, bypassing the latency and bandwidth ceiling of conventional GbE networking entirely. Simultaneously, the 10GBase-T port allows the rest of the network — render nodes, backup clients, collaboration tools — to access the same storage pool at 10x standard Ethernet speed. The included Seagate Rescue Data Recovery plan on all six IronWolf drives adds a meaningful insurance layer for production environments where data replacement cost far exceeds hardware cost.

Key Features

Six 8TB Seagate IronWolf drives pre-installed and pre-configured with RAID 5. Hassle Free!

Hassle-free plug and play setup

IronWolf drives include a robust three- year Rescue Data Recovery Services plan

Intel Core i3-8100t 4-Core 3. 1 GHz Processor architecture: 64-bit Graphics: Intel UHD Graphics 630

8 GB SODIMM DDR4 (Max 64GB)

2 x Thunderbolt 3 ports

1 x 10GBase-T RJ45, supporting 10G/5G/2. 5G/1G/100M

Specifications

Model
TVS-672XT-i3-8G-68S
Processor
Intel Core i3-8100T, 4-Core, 3.1 GHz
Graphics
Intel UHD Graphics 630
Memory
8GB SODIMM DDR4 (expandable to 64GB)
Drive Bays
6
Installed Drives
6 x 8TB Seagate IronWolf
Raw Capacity
48TB
Usable Capacity (RAID 5)
~40TB
RAID Configuration
RAID 5 (pre-configured)
Thunderbolt Ports
2 x Thunderbolt 3
Network Port
1 x 10GBase-T RJ45 (10G/5G/2.5G/1G/100M)

Similar Products

Other products from the same family that visitors often consider:

Pros & Cons

👍 Pros

  • Thunderbolt 3 at 40Gbps eliminates network-layer bottlenecks, delivering near-direct-attached performance for connected workstations.
  • Pre-configured RAID 5 with six 8TB IronWolf drives provides approximately 40TB usable storage and single-drive fault tolerance out of the box.
  • 10GBase-T with auto-negotiation (10G/5G/2.5G/1G/100M) supports multi-speed network environments without additional hardware.
  • Intel Core i3-8100T enables hardware video transcoding via UHD Graphics 630, reducing CPU overhead during streaming workloads.
  • DDR4 expandable to 64GB provides significant headroom for caching and virtualization workloads as demands grow.

👎 Cons

  • Intel Core i3-8100T is a 35W TDP mobile variant — under sustained parallel Thunderbolt + 10GbE + transcoding load, the CPU may become the throughput ceiling before storage or network are saturated.
  • 8GB DDR4 baseline RAM is insufficient for workloads combining heavy caching, multiple simultaneous streams, and VM storage — expansion is a near-immediate requirement for power users.
  • RAID 5 with six HDDs carries a non-trivial rebuild window after a drive failure; during rebuild, the array operates in degraded mode with elevated second-failure risk.
  • The 10GBase-T port requires a 10GbE-capable switch or NIC in the connected infrastructure — a cost most users do not already have in place.
  • Two Thunderbolt 3 ports limit direct simultaneous host connections to two workstations without a Thunderbolt switch or daisy-chain topology.

Frequently Asked Questions

RAID 5 across six drives sacrifices one drive's worth of capacity for parity, yielding approximately 40TB usable from 48TB raw. One drive can fail completely without data loss; recovery time after a failed drive replacement will depend on drive rebuild speed across the remaining five IronWolf spindles.
Thunderbolt 3 provides up to 40Gbps of bidirectional bandwidth per port, compared to 1Gbps for standard GbE. In practice, NAS sequential read/write performance will be bottlenecked by the RAID array throughput before saturating Thunderbolt 3, but the interface eliminates the network stack as a bottleneck entirely — it appears as a direct-attached device to the connected host.
Yes — the TVS-672XT supports up to 64GB via its SODIMM slots. The pre-installed 8GB is adequate for basic file-sharing operations, but heavy simultaneous Thunderbolt + 10GbE throughput, VM storage, or SSD caching workloads benefit from additional memory. Cache hit rates improve measurably with more RAM allocated to QNAP's internal caching engine.
The 10GBase-T RJ45 port and the two Thunderbolt 3 ports are independent interfaces on this platform. The 10GbE port supports auto-negotiation down to 100M, making it compatible with legacy switches while delivering full 10G throughput on appropriate infrastructure. Both Thunderbolt and 10GbE can be active simultaneously.
The integrated GPU enables QNAP's hardware transcoding features — real-time on-the-fly video transcoding for Plex, QNAP's own multimedia station, and 4K HDMI output for direct display connection. It does not contribute to storage throughput but significantly reduces CPU load during video streaming workloads.