Best QNAP TS-1655 NAS Tower Ethernet LAN Black C5125 for Business

Balance performance and cost with hybrid storage. Designed for diversified business IT environments, the high-capacity TS-1655 has twelve 3.5-inch SATA drive bays (for HDDs) and four 2.5-inch SATA drive bays (for SSDs) with 2.5GbE high-speed connectivity. Fueled by an immense 8-core Intel Processor, the TS-1655 presents a secure, scalable, and complete business-ready storage solution for cross-team file sharing, collaboration, backup & disaster recovery, virtualization, and intensive data transmission. The TS-1655 will be available and supported by QNAP for an extended period (up to 2027), ideal for businesses requiring matching NAS models deployed in multiple locations.

Eight cores up to 2.8 GHz, Intel® QuickAssist Technology, and up to 128 GB memory
The TS-1655 adopts the Intel® Atom® C5125 8-core processor (Burst up to 2.8 GHz) that supports Intel® QuickAssist Technology (QAT), offloading computationally-intensive compression and improving IPsec/SSL cryptography performance. The TS-1655 comes with four UDIMM DDR4 slots (8 GB preinstalled) that can be upgraded to 128 GB for higher workloads. Error-Correcting Code memory is also supported to deliver server-grade performance and reliability for rugged enterprise IT environments as a cost-efficient NAS solution.

Affordable, faster 2.5GbE meets today’s high-bandwidth demands
Featuring two native 2.5GbE RJ45 LAN ports (backwards compatible with 1G/100M), the TS-1655 allows you to upgrade network speeds from 1 Gigabit to 2.5 Gigabit using existing CAT5e cables. Port Trunking and failover support further satisfies bandwidth and reliability demanding applications including virtualization, large file transfers, high-speed backup/restoration, and real-time applications. QNAP also offers numerous managed/unmanaged 2.5GbE/10GbE switches, assisting organizations in implementing high-speed, secure, and scalable network environments without going over budget.

M.2 slots for SSD caching and accelerated AI-powered image recognition
The TS-1655 is equipped with two M.2 PCIe Gen 3 slots that allow for installing NVMe PCIe Gen 3 SSDs with 2280 form factors or Edge TPU (sold separately) to boost NAS performance.
SSD caching
Configure SSD caching with M.2 SSDs to obtain optimal I/O and reduced latency without occupying any 3.5-inch drive bays.
Auto Tiering
Qtier™ technology empowers the TS-1655 with auto tiering to continuously optimize storage efficiency across all installed storage devices.
Faster image recognition with Edge TPU
Coral M.2 Accelerator with Edge TPU provides an affordable solution to leverage AI acceleration for faster image recognition in your NAS applications.

5/10/25GbE network card
Enable lightning-fast throughput for bandwidth-demanding tasks (virtualization, mass data transmission, fast backup/restore.)
QM2 card
Adds M.2 SSD or 2.5GbE/10GbE connectivity to the NAS for optimized performance and bandwidth.
SAS / SATA storage expansion cards
Designed for connecting the NAS to SAS 12Gb/s or SATA 6Gb/s expansion units for petabyte-scale storage capacity.

Direct 2.5GbE connectivity for up to 14 PC/workstations
Your team needs a high-speed environment and productivity boost, and the TS-1655 delivers with two 2.5GbE ports. By installing three 4-port PCIe network cards (QXG-2G4T-I225) the TS-1655 can directly connect to up to 14 PC/workstations - no switch required – for faster large file transfer/backup, video editing, and much more.

Comprehensive backup and disaster recovery solution
The TS-1655 supports various apps that cover all your backup needs. Practice safe IT habits by regularly backing up files and device content, allowing them to be easily restored when needed.
PC/Laptop backup
For Windows®, install NetBak Replicator to back up your PC to QNAP NAS. In macOS®, just set up the built-in Time Machine® to secure your data.
Remote backup for NAS
Hybrid Backup Sync makes it easy to back up data from a TS-1655 to another QNAP NAS or remote server to fulfill your 3-2-1 backup strategy.
VM backup
Enjoy license-free VMware® and Hyper-V VM backup with source-side incremental backup, global deduplication, and recovery compression.
SaaS backup
Safeguard enterprise cloud data by backing up/syncing files, emails, calendars, and contacts from Google™ Workspace and Microsoft® Office 365® to the NAS.
Cloud backup for NAS
Hybrid Backup Sync supports mainstream cloud storage for NAS data backup. For backup to object cloud storage, VJBOD Cloud is especially useful to reduce bandwidth usage and backup time.
QuDedup technology
Hybrid Backup Sync eliminates redundant data at the source and then backs up the deduplicated data, helping to save time and storage costs while providing efficient multi-version backups.

Multi-version snapshots mitigate ransomware threats
The TS-1655 supports block-based snapshots that record the state of the system at any time. It helps protect data, which can be restored back to a specific point of time, greatly helping in mitigating the threat of ransomware.
Volume and LUN snapshots
Take snapshots in seconds and revert the entire volume/LUN back to a specific point in time to prevent loss of important data.
Instantly restore snapshots
Snapshot content can be quickly restored to a local NAS, or restored on a folder/file basis to a local/remote NAS or cloud storage. You can also conveniently view and restore snapshots from the client side.
Back up snapshots
Multiply data protection by backing up snapshot files! Replicate volume/LUN snapshots in the TS-1655 to a remote NAS (Snapshot Replica) by copying only the changes made. This helps save time & bandwidth, and can be run manually or on a scheduled basis.

All-in-one solution for hosting virtual machines and containers
By running multiple virtual machines and containers on the TS-1655, you can deploy multi-tenant environments and applications to increase management efficiency and save hardware costs. Coupled with the Network & Virtual Switch app that boosts interoperability between virtual machines, containers, QNAP NAS, and other physical devices on the network, you can flexibly allocate physical and virtual network resources to simplify network deployment.
Virtualization Station
Run multiple Windows®, Linux®, UNIX®, Android™, and QuTScloud virtual machines and access them via a web browser or Virtual Network Computing (VNC). Businesses can run virtualized server applications on a single NAS without needing additional physical servers.
Conainer Station
Experience Docker®, LXD, and Kata Containers lightweight virtualization technologies, download apps from the built-in Docker Hub Registry®, import/export containers, and create abundant microservices.
Linux Station
Run Linux® applications (including apps from the Software Center) directly on the NAS and remotely access the Linux® desktop from a web browser. The open-source Linux® platform is also ideal for Internet of Things development.
Single Root I/O Virtualization (SR-IOV)
By installing an SR-IOV compatible PCIe SmartNIC in the TS-1655, you can allocate bandwidth resources from a physical network card directly to VMs, increasing network efficiency and reduced CPU overheads.
QuTScloud virtual NAS
QuTScloud is a virtual appliance based on the QTS operating system. Enterprises can quickly launch QuTScloud on hypervisors including Linux® KVM, Microsoft® Hyper-V, and VMware ESXi™ to acquire advanced NAS features without requiring additional NAS hardware.

Comprehensive security and privilege settings
The TS-1655 is loaded with flexible privilege settings and security measures. Besides IP blocking, 2-step verification, HTTPS connection, there are more apps that help ensure optimal NAS protection against threats like malware and hackers.
myQNAPcloud secures remote access
myQNAPcloud allows convenient connection to the TS-1655 through the Internet without any complex DDNS settings. To ensure your remote access service is secure, myQNAPcloud strengthens keys on SSL Certificates to 2048-bits.
Simplified privilege settings
The TS-1655 supports comprehensive access right settings for shared folders, Azure Active Directory Domain Services (Azure AD DS), LDAP, and Windows ACL to help IT staff efficiently manage user accounts and access rights for multiple NAS systems.
QuFirewall protection
Supports IPv6, firewall access lists, and GeoIP filtering to restrict access based on geographical locations for higher NAS network security.
Superior security with QVPN
A virtual private network (VPN) allows secure access to network resources and services across public networks. QVPN supports creating a VPN client, using the TS-1655 as a VPN server, and WireGuard® VPN service with an easy-to-use interface for setting up a secure connection.
Security Counselor
A security portal for the TS-1655 to check for weaknesses and offer recommendations for enhancing NAS security. It also integrates anti-virus and anti-malware scanning software.
Malware Remover
Regularly scan your TS-1655 using the latest malware definitions. If infected files are detected, they will be immediately removed to ensure NAS data security.

The best file storage and collaboration center
The TS-1655 integrates rich apps for storing, managing, synchronizing, searching, and archiving files. It supports SMB/CIFS, AFP, and NFS protocols for streamlined file sharing across Windows®, Mac®, and Linux®/UNIX®, and provides the smartest NAS solution for professionally managing your files.
File Station
Manage, access, and share all the files in the TS-1655 and view snapshots files – all from your web browser. You can also easily mount remote NAS folders and cloud storage.
Qsync
Make any file uploaded to a TS-1655 available to linked devices, such as computers, laptops and mobile devices. You can sync shared folders and team folders for group file sharing to enhance the flexibility of team projects and collaboration.
Qsirch
QNAP’s powerful, Google-like search tool helps you quickly find images, music, videos, documents, and emails by keywords, color, and more search conditions. It also supports Qfiling to perform one-time or automatic archival tasks based on your search criteria.
Qfiling
Automate your file organization ─ all you need to do is categorize files, set a schedule, and Qfiling will do the rest. Qfiling also enables smart recycling that instantly moves filtered files to the Recycle Bin.

Build an affordable Fibre Channel SAN environment
Common Fibre Channel Storage Area Networks (SAN) devices are often costly. By installing QNAP dual-port 16Gb Fibre Channel expansion cards in the TS-1655, you have more budget-friendly options to add a NAS to a SAN environment. You can set a Fibre Channel Target using the iSCSI & Fibre Channel app. Moreover, the LUN Masking and Port Binding features provide an additional layer of data security.

Smart surveillance solution for 24/7 security
QVR Elite is QNAP’s subscription-based smart surveillance solution, allowing you to easily build a surveillance system with lower TCO and higher scalability. Recordings are saved as MP4 files, allowing playback on nearly every device. QVR Elite also integrates QNAP AI-based solutions to build smart facial recognition for retail and door access systems with QNAP NAS. You can arrange a dedicated, independent storage space for surveillance data on the TS-1655 and enjoy simplified camera management, storage space allocation, camera live viewing and playback.

Flexible and economical storage expansion
QNAP provides easy ways to expand your storage capacity. Here are several ways to expand your TS-1655 storage as needed to accommodate data and business growth.
Attach QNAP expansion enclosures
Connect expansion enclosures to the TS-1655, and manage NAS storage expansion with the user-friendly Storage & Snapshots Manager app.
Mount cloud storage or remote file servers
Mount cloud storage or remote file servers to expand the capacity of the TS-1655 while also centrally managing files on the NAS, cloud storage, and remote devices.
Migrate to a new NAS
Install your NAS hard drives into a larger QNAP NAS and retain all your existing data and configurations.
Upgrade RAID capacity
Hot-swap lower-capacity drives with larger-capacity drives to expand your NAS capacity so it can grow with your business.

More productivity-boosting applications
The TS-1655 provides an App Center that includes feature-rich apps to expand your NAS potential!
QuMagie
An AI-powered photo management app, supporting automated photo categorization with AI Albums, iOS® Live Photo display, and powerful search tools for the ultimate photo management and sharing solution.
QuObjects
Run a high-performance S3 compatible development environment on your TS-1655 to simplify service development workflows from testing to production. You can also move cold data from the cloud to an on-premises QuObjects to save cloud storage costs.
Notification Center
Consolidates all system events, alerts, and notifications for smooth and easy NAS management, keeping you always informed of your NAS status.
Qmiix
An Integration Platform as a Service (iPaaS) solution that enables you to connect apps and devices with QNAP NAS for automating daily tasks for greater productivity.
QmailAgent
The best email backup solution that allows you to easily backup/recover and manage multiple email accounts in their native format with strong security and data integrity.
QuFTP
The TS-1655 can perform as an FTP server featuring SSL/TLS encryption, QoS bandwidth controls, and permission settings for efficiently and securely transferring large amounts of data. FTP Client is also supported.

A health check for your hard drives
Hard drives are at the heart of your NAS, and ensuring their long-term health and reliability is absolutely crucial. QNAP provides various methods and tools to help you monitor hard drive health, ensuring that you can take proactive decisions to safeguard your data and files.
S.M.A.R.T. and back block scanning
If any of the S.M.A.R.T. values are reported as abnormal, or bad blocks are detected, you can take early action and replace drives before potential data loss occurs.
DA Drive Analyzer
The DA Drive Analyzer leverages ULINK cloud-based AI to predict the expected lifespan of drives, assisting you in planning future drive replacements to protect against NAS downtime and data loss.
Seagate® IronWolf™ Health Management
When using supported IronWolf™ or IronWolf Pro™ hard drives, overall system reliability is improved by providing you with actionable prevention, intervention, and recovery options.

Switch to QuTS hero operating system for optimal data integrity and reliability
The TS-1655 also supports QuTS hero - QNAP’s ZFS-based NAS operating system. Providing end-to-end data integrity, data reduction (inline data deduplication, compression, and compaction), and much more, QuTS hero uses additional system resources to ensure an optimal environment for protecting business data.
QTS
Suited for performance-demanding tasks, cross-teams file sync, and HDD-SSD hybrid storage applications
QuTS hero
Featuring highly reliable data protection and data reduction, and optimized for SSD-based applications