Affordable high-end AMD RX-421ND quad-core NAS with PCIe slots for adding M.2 SSD, 10GbE connectivity, and a graphics card
The TS-873 is powered by a high-performance and energy-efficient AMD R-Series CPU and provides two PCIe slots for greater functionality. You can install a QNAP QM2 expansion card to add M.2 SSD caching/10GbE connectivity; a compatible wireless card to use the TS-873 as a wireless access point; and an entry-level graphics card to boost system performance for 4K video performance. The TS-873 allows you to flexibly deploy a wide range of applications with a more affordable budget.
Two PCIe Gen3 x4 slots support QM2 cards, 10GbE adapters, or wireless network cards.
Supports entry-level graphics card, allowing for 4K video transcoding and output.
Dual M.2 SATA 6 Gb/s SSD slots allow for setting up caching or storage pools, improving file access efficiency.
Qtier™ auto-tiering technology and SSD caching enable 24/7 optimized storage efficiency.
Scalable storage supporting virtualization, containerized apps, centralized storage, backup, sharing, and disaster recovery.
Snapshots fully record system status and data. If files are accidentally deleted or modified, you can quickly restore the data from a snapshot.
AMD R-Series RX-421ND quad-core 2.1 GHz processor (Turbo Core up to 3.4 GHz)
Greater NAS potential with two PCIe slots
The TS-873 features two PCIe (Gen3 x4) slots, allowing for installing single/dual-port 10GbE NICs to accelerate applications that demand higher bandwidth such as virtualization, media workflows, and backup/restoration tasks for an ever-growing amount of data; or a USB 3.1 Gen2 (10Gb/s) expansion card for transferring large media files to and from USB storage. You can also install QM2 cards, wireless network cards or an entry-level graphics card to extend NAS functionality.
Note: USB 3.1 performance may vary depending on hardware/software limitations and usage environment.
AMD R-Series quad-core CPU
Equipped with a next-gen AMD R-Series RX-421ND quad-core 2.1 GHz CPU (Turbo Core up to 3.4 GHz) with up to 64GB dual-channel DDR4 RAM, the TS-873 enables lightning-fast multi-tasking with low power consumption for up to 2347 MB/s throughput with a 10GbE configuration. With a hardware-accelerated AES-NI encryption engine, the TS-873 also provides unmatched encryption performance in its class (up to 2310 MB/s with AES 256-bit full NAS volume encryption) to boost system performance while ensuring the safety of sensitive business data stored on the NAS.
Top-class hardware engineering
The strong and feature-packed hardware bolsters overall system performance. Coupled with a flexible and expandable architecture, the TS-873 can fulfill diverse application needs.
SSD caching and 10GbE connectivity
The TS-873 supports the innovative QM2 PCIe card that allows for adding up to two M.2 SSDs. You can configure SSD caching, or create a RAID 5 tiered storage along with the two M.2 SSDs in the NAS*. As these M.2 SSDs will not occupy any 3.5-inch drive bays, the QM2 card allows you to maximize both your storage capacity and performance. There are also QM2 cards that include 10GbE 10GBASE-T connectivity to provide SSD caching with high-speed network connectivity on a single card.
*Note: M.2 SSDs for NAS and QM2 cards are sold separately.
SSD cache with Qtier™ optimization for around-the-clock acceleration
The TS-873 features SSD caching, and also supports optional M.2 SATA 6Gb/s SSDs (sold separately). Using an SSD cache boosts overall system performance, and is perfect for improving the overall workflow of random IOPS demanding applications such as virtualization. QNAP’s Qtier™ technology also continuously optimizes storage efficiency by tiering files and data across M.2 SSD, 2.5-inch SSD, and high-capacity SATA drives based on access frequency. The new Qtier™ 2.0 features IO-awareness that empowers SSD-tiered storage with a cache-like reserved space to handle burst I/O in real time, greatly maximizing the advantages of SSD.
Note: The M.2 SSD is optional. As M.2 SSD operations can easily generate excessive heat, it is recommended to install a heatsink (from QNAP or a third-party provider) on the M.2 SSD.
Optimal computing power and 4K video playback with a graphics card
The TS-873 allows for installing a low-power graphics card (powered solely by the PCIe slot) to boost system performance. With a graphics card installed, the TS-873 also enables smoother video editing workflows and supports 4K UHD transcoding to deliver an exceptional multimedia experience. You can also use the QNAP remote control (sold separately) or the Qremote mobile app to use the NAS as a home theater PC.
1. Supported video formats depend on the hardware and software specifications of the devices. Playback capability and quality may vary due to factors including the original file formats/quality, hardware and software limitations, and output devices.
2. Consult the QNAP Compatibility List before purchasing the graphics card.
3. Graphics card will be supported in QTS 4.3.5 (or later) version.
Use your NAS as a wireless base station
Install a compatible PCIe wireless network card (for example: QNAP QWA-AC2600) on the TS-873 and use with the WirelessAP Station app to use your NAS as a convenient wireless base station. Your mobile devices and PCs can directly connect to your NAS for easy access to its services and Internet connection.
QTS – The intelligent, intuitive and creative NAS operating system
With modularized multiple applications and functions, QTS enhances management efficiency, personal productivity, multimedia, and much more, making your NAS experience easier, efficient, and more flexible! The built-in App Center with hundreds of install-on-demand apps realizes near-limitless NAS functionality. The new Qboost provides a NAS optimization tool that helps accelerate applications, recover system resources, and schedule applications. QTS breaks the barriers of devices, platforms, and geography to bring you optimized cloud experiences and incorporates advanced features.
Multiply your productivity
The app-driven QTS operating system provides solutions for simplifying file backup, management, search, and more. With File Station you can view and manage your files not only from NAS but also from multiple storage devices; the OCR Converter allows you to extract text from images; Qfiling helps automate file organization, and Qsirch helps find files quickly.
Centralized File Management
Use File Station to directly access files on USB devices - including optical disc drives. Files from different devices can be easily viewed and managed on a single interface.
OCR Converter extracts text from images, helping to boost productivity and making it easier to find files.
Qfiling automates file organization. Files are automatically archived into folders based on your settings.
Qsirch quickly finds images, music, videos, documents, emails, and other files.
Optimized collaboration with seamless file sharing and sync
The TS-873 centrally stores data and various files, and supports SMB/CIFS, AFP and NFS protocols for file sharing across Windows®, Mac®, Linux®/UNIX® networks. Coupled with Qsync - a utility that turns a QNAP NAS into a safe, high-capacity data center for file synchronization - any file uploaded to the TS-873 will be made available for all linked devices, such as computers, laptops and mobile devices. You can sync shared folders and team folders for group file sharing, greatly enhancing the flexibility of team projects and collaboration. Files can be centrally managed using File Station, including files from mobile devices and optical disc drives. File Station also allows you to mount a remote NAS, and transfer files between your NAS and public cloud services for greater convenience.
NAS as a Multi-OS Platform
Virtualization Station and Container Station provide comprehensive solutions for creating virtualized environments to improve business IT infrastructure, workflows, and productivity.
Virtualization Station allows you to run multiple Windows®, Linux®, UNIX® and Android™ virtual machines on the TS-873. You can use Virtual Network Computing (VNC) through a browser to manage the VMs. Virtualization Station is ideal for organizations to run multiple applications on a single NAS.
Container Station integrates LXC and Docker® lightweight virtualization technologies. You can download apps from the built-in Docker Hub® to easily import/export container apps and manage access control, enjoying the benefit of easy installation, transferability and high-efficiency.
Extensive backup solutions for complete disaster recovery planning
QNAP provides flexible backup and disaster recovery solutions to assist organizations in routine backup jobs with greater cost-efficiency and productivity.
Windows and Mac backup
Use the free QNAP NetBak Replicator utility to backup/restore Windows® files. Time Machine® is also supported for Mac® devices.
Hybrid Backup Sync
Consolidates backup, restoration and synchronization functions (using RTRR, rsync, FTP, CIFS/SMB) for easily transferring data to local, remote and cloud storage spaces as a comprehensive data storage and disaster recovery plan.
Snapshots for Volume & LUN
Snapshots are essential for NAS data protection, and its block-level operation makes it a dependable method for mitigating the growing threat of ransomware. The TS-873 supports up to 256 snapshots per volume or LUN, and maximum 1,024 snapshots per NAS.
With potentially huge storage capacities, high performance, integrated virtualization solutions, and support for snapshots that record the state of the system at any time, the TS-873 is perfect for backing up virtual machines.
The new QVR Pro surveillance solution
QNAP’s new QVR Pro surveillance solution allows you to arrange a dedicated, independent storage space for surveillance data on TS-873 and leverage the advantages of scalability and storage manageability from QTS. With QVR Pro, camera management, storage space allocation, camera live viewing and playback is greatly simplified. You can also use the QVR Pro Client mobile app to monitor your cameras from anywhere, or use a USB webcam as an ONVIF network camera with the QUSBCam2 app.
Note: QVR Pro supports 8 free channels for surveillance monitoring (expandable to 128 channels with additional channel license purchase).
Comprehensive surveillance solution for 24/7 security
The TS-873 provides an intelligent video management system that assists you with real-time monitoring, video & audio recording and playback with a wide range of customizable settings to safeguard your work environment. You can use the Vmobile app to manage monitored channels anytime and anywhere with your mobile devices, or install the Vcam app to turn your mobile device into a network camera to instantly record to your NAS.
3,000+ compatible IP cameras
4 free IP camera channels
72 expandable channels
QUSBCam2 use USB webcams as IP cameras
Flexible and economical storage expansion
You need an easy solution to increase storage capacity when running out of space. QNAP provides several ways to expand your NAS storage as needed to accommodate data and business growth.
Upgrade RAID Capacity
Hot swap lower-capacity drives with larger-capacity drives so that your QNAP NAS can grow with your business.
Attach Expansion Enclosures
Connect 2x UX-800P or UX-500P or 4x REXP-1000 Pro* expansion enclosures.
*Requires the SAS-12G2E PCIe expansion card and Mini SAS cable CAB-SAS10M-8644-8088 (both sold separately)
Use VJBOD (Virtual JBOD) to expand your storage capacity by using the unused storage of other QNAP NAS. Up to 8 QNAP NAS can be mounted as local disks on the TS-873.
Migrate to a New NAS
Install your NAS hard drives into a larger QNAP NAS and retain your existing data and configurations.
More productivity applications
A popular web automation service for combining QNAP NAS and mobile devices/apps to customize NAS applets.
Centrally manage and switch between different email accounts, back up emails to the NAS, and safeguard email security and personal privacy.
Enable remote access through NAS browsers to access local LAN resources without going through complex VPN settings.
QIoT Suite Lite
Provides an IoT solution on a private cloud empowered by the high capacity and security of a QNAP NAS. It only takes three steps to deploy your own IoT application.
Mattermost turns your QNAP NAS into a team communication platform that allows for instant messaging and can centrally store all your conversations and files.
Simplify file access, NAS management, multimedia experience, surveillance, and download tasks with QNAP mobile apps.
Processor: AMD R-Series RX-421ND quad-core 2.1 GHz processor, Turbo Core up to 3.4 GHz
Encryption Engine: AES-NI
4 GB DDR4 (2 x 2 GB)
64 GB (4 x 16 GB)
4 x SODIMM DDR4
(For dual- or quad-DIMM configurations, you must use a pair of identical DDR4 modules.)
8 x SATA 6 Gbps
• 3.5-inch SATA hard disk drives
• 2.5-inch SATA hard disk drives
• 2.5-inch SATA solid state drives
M.2 SSD Slot
2 x M.2 2260/2280 SATA 6Gb/s SSDs (Sold separately)
1. The M.2 SSD is not included as standard.
2. M.2 SSD operations can easily generate excessive heat. It is recommended to install a heatsink (from QNAP or a third-party provider) on the M.2 SSD.
SSD Cache Acceleration Support
• Drive bays 1 to 8
• M.2 slots 1 to 2
• Optional: M.2 SSD using QNAP QM2 PCIe expansion card
The following are not hot-swappable: M.2 SSDs, SSD cache drives, SSDs using PCIe expansion slots.
Gigabit Ethernet Port
4 x RJ45
2 x PCIe 3.0 x4
Note: Support full-height 10GbE LAN card, USB 3.1 Gen2 (10Gb/s) expansion card, QM2 card, PCIe wireless network card or a bus-powered graphics card.
4 x USB 3.0 (Front: 1; Back: 3)
• 2 x 3.5 mm dynamic microphone jacks
• 1 x 3.5 mm line-out jack
• 1 x speakers
Note: You cannot use the speakers and the line-out jack simultaneously.
USB One Touch Copy
Front: USB 3.0
Optional QNAP RM-IR004 remote control (MCE compatible)
Dimensions (H x W x D)
188.2 x 329.3 x 279.6 mm
7.41 x 12.96 x 11.01 inch
Power Consumption (W)
HDD standby: 36.43 W
In operation: 70.26 W
(with 8 x 2TB HDDs installed)
Sound pressure (LpAm): 23.4 dB(A)
6.59 kg (14.53 lbs)
Power Supply Unit
250W, 100-240V AC, 50/60Hz
System: 2 x 120 mm
CPU: 1 x 60 mm
Operating Temperature & Relative Humidity
0 ~ 40˚C ( 32˚F ~ 104˚F ), 5 ~ 95% RH non-condensing, wet bulb: 27˚C (80.6˚F)
Kensington security slot
Note: Use only QNAP memory modules to maintain system performance and stability. For NAS devices with more than one memory slot, use QNAP modules with identical specifications. Warning: Using unsupported modules may degrade performance, cause errors, or prevent the operating system from starting.
* Sound Level Test Environment: Refer to ISO 7779; Maximum HDD loaded; Bystander Position; Average data from 1 meter in front of operating NAS.
Designs and specifications are subject to change without notice.
| Stock code || IBQ-873S-4G|
| Brand || Qnap|
| Series || Desktop NAS|
| Model || TS-873-4G|
| Type || 8-Bay, RAID 0/1/5/6 (4GB RAM) - no HDMI or GPU|
| ROHS || Y|
| Date added || 16/03/2018|
TS-873-4G Spec Information
| Form Factor / Drive Height || 279.6 mm x 329.3 x 188.2 mm|
| Platter size || 3.5"|
| Platter (alternate) || 2.5"|
| RAM/Cache || 4GB|
| Guarantee || 2yr|
| Processor || AMD R Series RX-421ND Quad Core 2.1 GHz, Turbo to 3.4 GHz|
| CPU Mark (cpubenchmark.net) || 4740|
| Total Drives || 8|
| Total Drives (alternate) || 8|
| RAID || 0:1:5:6:JBOD:|
| RAID Levels || Single Disk, JBOD, RAID 0, 1, 5, 6, 10|
TS-873-4G Spec Connections
|SATA||SATA 7-pin Discrete with Power||Internal||8|
|PCIe||PCIe v3 x4||Internal||2|
|USB3||USB3.0 type A (host)||External||4|
| Speed/RPM || 6Gb/s to Gigabit Ethernet (1,000 Mbit/s)|
| Colour || Black|
| Weight (kg) || 10kg|
| Weight (bare) || 6.59kg|
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