QNAP TS-853BUIntel® Celeron® quad-core rackmount NAS with PCIe slot for diverse storage applications
The TS-853BU is a 1U rackmount NAS that easily fits into a standard 19-inch rack, providing an ideal storage solution in the server room for small and medium businesses. The TS-853BU comes with a PCIe slot for boosting potential applications: the QNAP QM2 expansion card can be installed to add an M.2 SSD cache/10GbE connectivity, a compatible wireless card can be installed to use the TS-853BU as a wireless access point, and a USB 3.1 10Gbps card can be added for easier backup to/from multiple external storage. The TS-853BU also provides a wide range of value-added features: 4K video playback and real-time transcoding; deployment of virtual environments through Virtualization Station and Container Station; centralized management of remote Windows®, Linux® and IPMI-compatible devices with QRM+; and web automation services with IFTTT Agent.
Intel® Celeron® J3455 quad-core 1.5GHz CPU with AES-NI Encryption
- PCIe slot supports installing a QNAP QM2 dual-port M.2 SSD/10GbE card, a compatible wireless adapter, or a USB 3.1 10Gbps card.
- Supports dual-channel 4K H.265/H.265 hardware decoding and on-the-fly or offline transcoding
- Qfiling automates file organization and Qsirch provides full-text search for easier file management
- QRM+ enables centralized management of remote Windows®, Linux® and IPMI-compatible devices.
- A hybrid approach to virtualization in one NAS: Virtualization Station and Container Station
- Scalable storage space with VJBOD and UX-1200U-RP/UX-800U-RP expansion enclosures
Powered by the latest 14 nm Intel® Celeron® J3455 quad-core 1.5GHz processor (burst up to 2.3 GHz), up to 8GB DDR3L RAM, four Gigabit LAN ports, and SATA 6Gb/s, the TS-853BU runs tasks smoothly and quickly with up to 369 MB/s read/ write speeds. The TS-853BU features Intel® AES-NI accelerated encryption to drive transfer speeds of up to 336 MB/s with AES 256-bit encryption for both full NAS volumes and shared folders, boosting system performance while ensuring the confidentiality of sensitive business data stored in the NAS. QM2 expansion card redeﬁnes NAS function
QNAP's QM2 is a PCIe expansion card that features dual M.2 SSD slots and 10GbE connectivity* (individual cards may vary in functionality). This allows users to easily set up SSD caching or to enable Qtier auto-tiering technology to optimize NAS performance. 10GbE-compatible models can also future proof the TS-853BU for use with 10GbE networks. Equipped with a dedicated cooling module, the QM2 can maintain its high performance even when tasked with the highest workloads.
*Selected models with 10GbE connectivity is backward compatible with 5GbE/2.5GbE/1GbE/100MbE network. SSD cache acceleration
The TS-853BU supports SSD caching. Users can install an SSD in drive bay 1 and bay 2 to boost IOPS performance of storage volumes. It is perfect for improving the overall workflow of IOPS-demanding applications and allows the best of both cost and performance by combining SSDs with HDDs. Coupled with Qtier™ auto-tiering technology (which now supports “On Demand Allocation Priority”), users can customize storage allocation to best suit their system environment and application demands.QRM+: Centralized management solution for networked computing devices
QRM+ is QNAP’s Centralized Management Solution, designed for IT teams, for networked computing devices. It provides a single-point solution to discover, map, monitor and manage all of the critical computing devices (including servers, PCs, and thin clients) in your network, and facilitates device discovery with the graphical topology diagram. QRM+ supports IPMI 2.0, provides remote KVM (Keyboard, Video, Mouse) for certain IPMI devices, and supports tracking every action using KVM recording and playback. Simply install QRMAgent on your Windows® and Linux® devices and you will see their system status on the QRM+ management interface. With centralized management using QRM+ on the NAS, IT infrastructure and device security is enhanced while troubleshooting and network resource performance analysis is greatly simplified.Data backup, recovery, and synchronization
Hybrid Backup Sync provides a well-rounded solution for data backup, file synchronization and disaster recovery for you to easily and securely backup data from your NAS to several local, remote and cloud storage spaces. In the event of system crashes or critical hardware failure, you can quickly restore data from these storage spaces, minimizing downtime and reducing overall loss. Hybrid Backup Sync also takes advantage of cloud storage for one-way sync of your data to cloud storage through RTRR, rsync, FTP, SMB protocol, or two-way sync your NAS with remote NAS/cloud services.QTS-Linux dual systems, geared for the IoT era
The TS-853BU’s QTS-Linux dual systems are based on QNAP’s advanced virtualization technologies. The revolutionary architecture of the TS-853BU enables users not only to download rich apps from QTS App Center but also to develop or utilize IoT packages for Linux® and display them using HDMI output. With the TS-853BU, you can develop and install various IoT packages on demand and centrally store the data on the TS-853BU, benefiting from a secure private storage and development solution.Datastore for virtualized environments
The TS-853BU is an iSCSI/ IP-SAN storage that supports VMware® and Citrix®, and is compatible with Microsoft® Hyper-V® and Windows Server 2012® R2, fulfilling the need for flexible deployment and management in virtualization environments. The TS-853BU supports VMware VAAI and Microsoft ODX to increase performance by offloading server loading for ESXi server and Hyper-V respectively, and supports QNAP vSphere Client plug-in and QNAP SMI-S provider with enhanced operational efficiency and management in virtualization applications.Storage for hosting virtual machines and containerized applications
Virtualization Station allows you to host virtual machines (VM) on the TS-853BU and access them via a web browser or VNC. Virtualization Station supports multiple operating systems, fast VM creation, VM backup & restoration, VM import/export, snapshot, and Device Management for centrally managing VMs. Virtualization Station allows the TS-853BU, VMs and containers to share the same LAN port. No longer constrained by physical network performance, high-speed virtual switches greatly increases data transfer between VMs, containers and NAS through the internal interface. The TS-853BU also features Container Station, which integrates LXC and Docker® lightweight virtualization technologies. You can operate multiple isolated Linux® systems on the TS-853BU as well as download apps from the built-in Docker Hub Registry®. Containers Station also supports the QIoT Containers platform that helps quickly structure your IoT environment and deployment on your private IoT cloud.Secure access with VPN & Proxy Server
The new QVPN combines VPN server and VPN client functionality. Through QVPN, the TS-853BU can be used as a VPN server with L2TP/ IPsec, OpenVPN, and PPTP support, allowing you to securely access data shared within the private local network. The TS-853BU can also be used as a VPN Client to connect to other VPN servers or virtual private network through PPTP and OpenVPN for secure data transmission. VPN Client also allows your NAS to connect to multiple servers at the same time. You can connect your devices to your NAS and the VPN server at home to access data on the LAN and via VPN Client on your NAS, you can connect to international VPN servers for accessing regionally-restricted services such as Netflix and Hulu in HD Station. The TS-853BU provides you with various VPN options and helps secure your data transmission. QTS – The most intelligent and intuitive NAS operating system
With modularized multiple applications and functions, QTS enhances management efficiency, personal productivity, multimedia, and much more. New intelligent agent services have also been added to simplify system operations and management. The user-friendly QTS features an intelligent desktop that allows you to find desired functions quickly, monitor important system information on a real-time basis, open multiple application windows to run multiple tasks concurrently with greater working efficiency, and provides a built-in App Center with install-on-demand apps to extend NAS functionality. QTS breaks the barriers of devices, platforms, and geography to bring optimized cloud experiences and incorporates advanced features.Qfiling automates your file organization
Qfiling helps automate file organization for sorting files spread through multiple folders, helping to reduce the time needed for finding important files. Users can categorize files and determine filing conditions; and schedule filing tasks to be carried out periodically. The “Recipe” feature allows users to save frequently-used filing conditions as an “exclusive recipe”, then the next Qfiling task can be run with just one click using the recipe.4K HDMI output for an excellent audiovisual experience
Featuring advanced 9th-generation Intel® HD Graphics, the TS-853BU supports dual-channel 4K H.264/H.265 hardware decoding and real-time transcoding, allowing you to convert videos to universal file formats that can be smoothly played on multiple devices*. QNAP Linux Station is integrated with Ubuntu® OS, allowing you to download and install versatile multimedia apps from Ubuntu Software Center, such as Plex Media Server, KMPlayer, LibreOffice and VLC. QNAP's HD Station also allows you to directly enjoy multimedia using HD Player or third-party players such as Plex Home Theater. By connecting the TS-853BU to a HDTV or A/V receiver you can enjoy watching videos with up to 4K resolution. The free QNAP remote control also provides you with convenient control of your multimedia experience.
*The TS-853BU’s hardware provides H.264 /H.265 hardware decoding, encoding and transcoding capabilities. However, playback quality may vary due to factors including playback software, file formats, system usage, and available bandwidth.IFTTT Agent automates your workflow
IFTTT (If This Then That) is currently one of the most popular web automation services, and with QNAP IFTTT Agent you can create a near-unlimited number of NAS-related applets on the IFTTT website for greater automation and to boost your productivity. For example, if you set a trigger as “Any new photo (using Android Photos service)” and the action as "Download the URL to QNAP NAS (using QNAP service)," then all the photos taken using your Android device will be automatically downloaded to TS-853BU. With IFTTT Agent, you can make your TS-853BU smarter than ever.Centralized email and contact management for improved communication workflows
It can be hard to manage emails and contact information that are scattered across multiple computers, devices, and accounts - not to mention if important emails or contact information are lost or become inaccessible due to account closure or device malfunction/loss. QNAP QmailAgent and Qcontactz helps you centrally store and manage emails and contact information, making them accessible to all of your devices at any time - and with the powerful Qsirch search engine, you can easily find specific contacts and emails whenever needed.Comprehensive surveillance solution providing 24/7 security
Surveillance Station is a professional network surveillance Video Management System (VMS) that offers a user-friendly management interface, over 3,000 compatible IP camera models, and expandable IP camera channel licenses. It supports real-time monitoring, video & audio recording and playback with a wide range of customizable settings. You can also install the Vmobile app on your iOS® or Android™ devices to manage the monitored channels anytime and anywhere, or install the Vcam mobile app to turn your device into a network camera to instantly record to your TS-853BU. The TS-853BU offers 4 free IP camera channels and you can expand up to 40 channels by purchasing additional licenses. Whole new QVR Pro surveillance solution
The TS-853BU supports QVR Pro (Beta) that integrates QNAP’s professional QVR system into the QTS operating system. You can arrange a dedicated, independent storage space for surveillance data on the NAS and leverage the advantages of scalability and storage manageability from QTS. QVR Pro features a flexible monitoring interface that allows adjusting the proportion and monitor view of IP cameras, supports an upgraded timeline feature that provides instant video search and quick view identification in live monitoring mode, and allows for monitoring views and playing back images without switching between windows. Additional functions like batch adding and editing cameras and searching for cameras across different LANs further save the cost and time in deploying and maintaining a complete surveillance system. With the newly-developed QUSBCam2 App, you can use a USB camera as an ONVIF network camera. Simply connect it to your TS-853BU, and you can view real-time images without installing any software. Through QVR Pro, you can even store recordings for playback, allowing you to build a surveillance system with minimum budget.Easily expand storage capacity
Besides attaching a QNAP expansion enclosure, the TS-853BU’s storage capacity can also be increased by using VJBOD. With VJBOD, the storage capacity of other QNAP NAS* can be used as virtual disks that can be mounted as local disks on the TS-853BU for shares, applications, or even creating another LUN. You can use the QTS Storage Manager to easily handle NAS capacity expansion and storage expansion enclosure management. With the support of QJBOD Express (JBOD enclosures roaming)**, you can migrate data to another QNAP NAS through a JBOD enclosure without network connectivity.
||Intel Apollo Lake J3455 4-core 1.5GHz
||4 GB DDR3L 2 x 2GB
||8 GB DDR3L 2 x 4GB
||SODIMM x 2 (MAX. 8GB)
||1 x PCIe gen 2 x 2 slot
|Hard Drive Tray
||SATA 6Gb/s, 3Gb/s HDD or SSD; Hot-swappable
||4 x USB 3.0 (Rear)
||4 x GbE
||1 x HDMI 1.4b
||System Status, HDD,USB, LAN
||2U, rack mountable
||89 x 482 x 534 mm
3.5 x 18.98 x 21.02 inch
||Net: 11.02 kg (24.29 lbs.)
Gross: 19.26 kg (42.46 lbs.)
|Power consumption (W)
||HDD sleep: 30.9W
Typical Operation: 52.1W
|Sound Level (dB)*
||Operating low speed: 28.2 dB(A)
||2 x 70mm, 12V DC
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.
If you buy this Qnap 19"Rack NAS and hard drives we do free build and test for the unit and hard drives. So you can use this device straight out of the box. All free of charge in TS-853BU-4G price.
Same Day and Next Day Delivery available in UK and fast WorldWide delivery for products in stock.
FREE Business Quotes available for products with specific requirements or quantities. Often cheaper than Amazon.
provides an easy way to immediately scale capacity up to 64TB by additional 8 hard drives. The RAID volume on the Qnap 19"Rack NAS can be expanded directly without having to reformat the existing hard drives, ensuring it continues its service during the capacity expansion.
provides an easy way to immediately scale capacity up to 96TB by additional 12 hard drives. The RAID volume on the Qnap 19"Rack NAS can be expanded directly without having to reformat the existing hard drives, ensuring it continues its service during the capacity expansion.
Add two Gigabit Ethernet ports and a USB 3.0 pass-through port to your laptop through a single USB 3.0 port