TVS-h1677AX

Enterprise ZFS Hybrid Desktop NAS — Accelerate Creative & Virtualization Workflows

QuTS hero Operating System

Honored with 2026 MSP Today Product of the Year Award

AMD Ryzen™ 7000 & DDR5: Driving Multitasking Limits

Adopting the latest Zen 4 architecture, the TVS-h1677AX provides a significant IPC uplift. Combined with DDR5 memory (expandable up to 192 GB), it effortlessly handles heavy workloads, including multiple virtual machines (VMs), containers, and high-resolution video transcoding.

Fuse U.2 NVMe Speed with HDD Capacity. Qtier is Coming.

Maximize your storage efficiency without compromise. The TVS-h1677AX features hybrid bays that support both U.2 NVMe SSDs and traditional HDDs, allowing you to combine the speed of NVMe with the capacity of hard drives.

TVS-h877AX: 2 x U.2 NVMe PCIe 4.0 x4 slots
TVS-h1277AX: 4 x U.2 NVMe PCIe 4.0 x2 slots
TVS-h1677AX: 4 x U.2 NVMe PCIe 4.0 x2 slots

Powerful AMD Ryzen™ PRO 7000 Series processor with 6 cores

The TVS-h1677AX is powered by the AMD Ryzen™ 5 PRO 7645 processor (Zen 4 architecture), delivering exceptional multitasking performance and energy efficiency. Combined with 64 GB DDR5 memory and 3 x 25GbE SmartNIC, it achieves outstanding sequential throughput and random IOPS for demanding enterprise workloads.

CPU

AMD Ryzen™ 5 PRO 7645 6-core/12-thread processor (Zen 4, up to 5.1 GHz)

Memory

64 GB DDR5-4800 (32 GB × 2), supports up to 192 GB (optional ECC supported)

Transfer speed with U.2 NVMe SSDs

6 x 25GbE SMB Sequential Throughput (1M)	Read 12,174 MB/s	Write 11,065 MB/s
6 x 25GbE iSCSI Random IOPS (4KB)	Read 1,140,212 IOPS	Write 782,483 IOPS

Tested in QNAP Labs. Figures may vary by environment.

Test Environment:
NAS: TVS-h1677AX (AMD Ryzen™ 5 PRO 7645) with RAM upgrade to 64GB DDR5-4800 (32GB×2) and 3 x QXG-25G2SF-CX6
OS: QuTS hero h5.2.9.3380
Volume Type: Samsung 4 x PM9A3 1.92TB U.2 NVMe SSD, 12 x Samsung 870 EVO 1TB SATA SSD, RAID 5, thick volume
Client PC: 5 x Intel Core i3-8100, 4G, QNAP QXG-25G2SF-CX4, Windows Server 2019 + 1 x Intel Core i7-7700, 32G
IOmeter: RAM×4, 30-sec ramp up time, 3-min seq. run time, 1 workers, 32-outstanding

Qtier for QuTS hero

Maximize storage efficiency. Move active data to high-performance SSDs and cold data to high-capacity HDDs.

Hot Tier NVMe SSD

Warm Tier SAS/SATA SSD

Cold Tier SATA HDD

Intelligent Data Movement

Supported Drive	Hot	Warm	Cold
PCIe NVMe SSD		—	—
SAS/SATA SSD	—		—
SAS/SATA HDD	—	—

*Requires QuTS hero h6.0 or later.

NFS over RDMA | Unleash the True Potential of 25GbE

Eliminate CPU bottlenecks. NFS over RDMA transfers data directly between memory, delivering local NVMe-like responsiveness to your workstation.

Editing PC / Workstation TVS-h1677AX

Standard NFS (TCP/IP) HIGH LATENCY

CPU Wait

⚠ Data must pass through CPU

NFS over RDMA Enabled ZERO COPY

✓ Direct Memory Access (Bypassing CPU)

Professional Collaboration Configuration

• Core Architecture TVS-h1677AX
• Network Interface
  QXG-25G2SF-BCM

  25GbE Smart NIC
• Transfer Protocol NFS over RDMA

*This configuration tested supporting 5+ simultaneous ProRes 4444 4K stream playback.

Minimum System Requirements: QTS 5.2.6 / QuTS hero h5.2.6 or later. Pairing with RoCE-supported network cards is recommended. Compatibility List.

PCIe Gen 4 Expandability for Future-Proof Upgrades

The TVS-h1677AX is equipped with three PCIe Gen 4 slots, enabling you to install 25GbE network cards or dedicated NVIDIA RTX™ GPU cards for AI inference and virtual machine GPU passthrough.

*Note: Slot 2 provides PCIe Gen 4 x8 width when Slot 1 is not in use.

Slot 1: PCIe Gen 4 x4
Slot 2: PCIe Gen 4 x8 (or x4)*
Slot 3: PCIe Gen 4 x4

Run VMs and Containers

With no additional fees, you can run multiple VMs of different OS on TVS-h1677AX. This allows you to deploy multi-tenant environments and applications to increase management efficiency and save hardware costs.

• 

  VMs

  Securely run Windows®, Linux®, UNIX®, QuTScloud VMs using Virtualization Station Simply plug in a keyboard, mouse, and HDMI™ display to use the VM like a normal PC.

  Learn more about QuTScloud Virtual NAS

• 

  Containers

  Run Docker®, LXD, Kata Containers and download Container Apps using Container Station.

• 

  VM High Availability

  VM Live Migration and HA (High Availability) guarantee continuous operation and minimal downtime.

• 

  Network & Virtual Switch

  Flexibly allocate virtual network resources and configure VLANs to ensure virtual services via the virtual network topology in Network & Virtual Switch.

High availability (HA) and failover with dual-NAS architecture

Avoid unplanned downtime and data loss. Dive into details

Note: High Availability (HA) will be supported starting with QuTS hero h6.

Create a HA cluster with two TVS-h1677AX — one as the active server, and the other as the passive server. If an unexpected failure or issue with the active server occurs, the passive server provides immediate protection with automatic failover. This ensures continuous storage service and system availability.

• Easy management and monitoring

  Use the High Availability Manager app to easily configure, remove, or rebuild clusters.

• Guaranteed data consistency

  Real-time data sync between active and passive servers minimizes the risk of data loss (RPO).

• Ensured continuity of critical business

  The passive server takes over within 1 minute if the active server fails (RTO < 60 secs).

AI-powered enterprise search

• Build a smart knowledge hub with RAG Search

  TVS-h1677AX integrates the Qsirch search engine with RAG technology, cloud-based large language models (LLMs), and generative AI. This enables precise natural language searches across vast NAS file content, while generating summaries and actionable insights.

  Discover enterprise search solution

• Full-text search

  Searches for files based on file name, content, title, metadata, email title and body text, file path, and more.

  Explore Qsirch search engine

• Document preview

  Preview the content of unopened documents, view keyword-relevant paragraphs, and check out a few relevant sentences related to the file subject.

• Image search

  Search for images by color or object. AI OCR recognizes and enables capturing text from images.

• At-a-glance file distribution

  Stay informed of storage utilization and distribution of data and files stored on the TVS-h1677AX via charts and analytics.

5-year warranty as standard

The TVS-h1677AX is backed by a 5-year warranty at no extra cost – providing your business organization with greater peace of mind.

QNAP Warranty Service

NAS Recovery Guide