QNAP TS-855eU-RP Specifications

Hardware

CPU
Intel Atom C5125 8-core processor, 2.8GHz

CPU Architecture
64-bit x86

Floating Point Unit
Yes

Encryption Engine
Yes (AES-NI)

System Memory
8GB non-ECC SODIMM DDR4 (1x 8GB)

Maximum Memory
64GB (2x 32GB)

Memory Slot
2x SODIMM DDR4
Support ECC memory

Flash Memory
5GB (Dual boot OS protection)

Drive Bay
8x 3.5″ SATA 6Gb/s, 3Gb/s

Drive Compatibility
3.5″ SATA hard disk drives
2.5″ SATA hard disk drives
2.5″ SATA solid state drives

Hot-swappable
Yes

M.2 Slot
2x M.2 2280 (PCIe Gen 3 x4)

SSD Cache Acceleration Support
Yes

SR-IOV
Yes

2.5 Gigabit Ethernet Port
2 (2.5G/1G/100M/10M) (2.5G/1G/100M)

5 Gigabit Ethernet Port
Optional via a network adapter (5G/2.5G/1G/100M)

10 Gigabit Ethernet Port
Optional via a network adapter

25 Gigabit Ethernet Port
Optional via a network adapter

Wake on LAN (WOL)
Yes

Jumbo Frame
Yes

PCIe Slot
2x PCIe Gen3 (x4)
Slot 1: PCIe Gen 3 (x4)
Slot 2: PCIe Gen 3 (x4)

USB 3.2 Gen 1 Port
4

HDMI Output
Optional via a PCIe graphics card

Form Factor
2U Short Depth Rackmount

LED Indicators
HDD 1-8, Status, LAN, USB, Power

Buttons
Power, Reset

Operating Temperature
32 Degree F – 104 Degree F (0 – 40 Degree C)

Storage Temperature
-4 Degree F – 158 Degree F (-20 – 70 Degree C)

Relative Humidity
5-95% RH non-condensing, wet bulb: 80.6 Degree F (27 Degree C)

Power Supply Unit
2x 300W PSU, 100 – 240V

Power Consumption
54.331W (HDD Sleep Mode)
78.73W (Operating Mode, Typical)

Fan
3x 60mm, 12VDC

System Warning
Buzzer

Max. Number of Concurrent Connections
With Max. Memory: 2500 (CIFS)

Dimensions (H x W x D)
3.49 x 17.01 x 11.71″ (8.8 x 43.2 x 29.7mm)

Weight
17.97 lbs (8.15kg)

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Software

Operating System
QuTS hero h5.1.0
QTS 5.1.0

Supported Client Operating Systems
Apple Mac OS 10.10 or later
Ubuntu 14.04, CentOS 7, RHEL 6.6, SUSE 12 or later Linux
IBM AIX 7, Solaris 10 or later UNIX
Microsoft Windows 7, 8, 10 and 11
Microsoft Windows Server 2008 R2, 2012, 2012 R2, 2016, 2019 and 2022

Supported Browsers
Apple Safari
Google Chrome
Microsoft Edge
Mozilla Firefox (latest version)

Supported Languages
Chinese (Traditional & Simplified), Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese (Brazil), Romanian, Russian, Spanish, Swedish, Thai, and Turkish

Storage

Storage Pool
Yes

SED Storage Pool
Yes

Maximum Pool size
QuTS hero h5.1.0: 5PB
QTS 5.1.0: 308TB

Maximum number of storage pool
128

Volume Type
Thick, Thin, Static (Only in QTS 5.1.0)

Maximum volume size
250TB (Only in QTS 5.1.0)

Maximum number of volume
128 (Only in QTS 5.1.0)

Shared Folder Type
Thick, Thin (Only in QuTS hero h5.1.0)

Maximum shared folder size
QuTS hero h5.1.0: 5PB
QTS 5.1.0: 250TB

Maximum number of shared folder
QuTS hero h5.1.0: 128
QTS 5.1.0: 512

JBOD Expansion
Yes

VJBOD / VJBOD Cloud
Yes

iSCSI Service
Yes

Fiber Channel Service
Yes

LUN Type
Thick, Thin

File-based
iSCSI LUN (Only in QTS 5.1.0)

Block-based iSCSI LUN
Yes

Maximum LUN size
QuTS hero h5.1.0: 1024TB
QTS 5.1.0: 250TB

Maximum number of targets LUN
128

LUN feature

• LUN Mapping (LUN can be moved between iSCSI and FC)

• LUN Masking

• WWPN Aliases Import/Export

• FC Port Group

• FC Port Binding

• Multipath IO (MPIO)

• Online LUN capacity expansion

• LUN snapshot

• LUN snapshot replication and clone (Only in QTS 5.1.0)

Auto Tiering
Yes (Only in QTS 5.1.0)

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RAID

RAID Type

QuTS hero h5.1.0

• 8-bay (and more): Single, RAID 0 (Stripe), 1, 5, 6, 10, 50, 60, Triple Mirror, Triple Parity

• 6-bay: Single, RAID 0 (Stripe), 1, 5, 6, 10, 50, Triple Mirror, Triple Parity

• 4-bay: Single, RAID 0 (Stripe), 1, 5, 6, 10, Triple Mirror, Triple Parity

• 3-bay: Single, RAID 0 (Stripe), 1, 5, Triple Mirror, Triple Parity

• 2-bay: Single, RAID 0 (Stripe), 1

QTS 5.1.0

• 8-bay (and more): JBOD, Single, RAID 0, 1, 5, 6, 10, 50, 60

• 6-bay: JBOD, Single, RAID 0, 1, 5, 6, 10, 50

• 4-bay: JBOD, Single, RAID 0, 1, 5, 6, 10

• 2-bay: JBOD, Single, RAID 0, 1

RAID Group
Yes

RAID Level Migration
Yes (Only in QTS 5.1.0)

RAID Expansion
Yes (by replacing bigger Disks)

Storage Pool Expansion
Yes (by adding RAID Group)

RAID Hot Spare
Global, Local

RAID Sync/Rebuild/Scrubbing
Yes

End-to-End data integrity
Yes (Only in QTS 5.1.0)

Silent error detection and self-healing
Yes (Only in QTS 5.1.0)

Internal drive
QuTS hero h5.1.0: ZFS
QTS 5.1.0: EXT4

External drive
QuTS hero h5.1.0: EXT3, EXT4, NTFS, FAT32, HFS+, and exFAT
QTS 5.1.0: EXT3, EXT4, NTFS, FAT32, HFS+, and exFAT (optional for ARM model)

Disk, Enclosure Locate
Yes

Disk S.M.A.R.T. Scan
Yes

Disk S.M.A.R.T. Data Migration
Yes

Ironwolf Health Management
Yes

Secure Erase
Yes

SSD Trim
Yes

SSD Life Estimation
Yes

Disk Roaming
Yes

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Snapshots

Volume Snapshot
Yes (Only in QuTS hero h5.1.0)

Shared Folder Snapshot
Yes (Only in QuTS hero h5.1.0)

LUN Snapshot
Yes

Minimum Snapshot Interval
QuTS hero h5.1.0: 1 minutes
QTS 5.1.0: 5 minutes

Snapshot Retention Policy
Yes

Self-serve Snapshot Recovery
Yes

Application Consisted Snapshot
Yes

Snapshot Full Clone
Yes

Snapshot Instant Clone
Yes

Snapshot Replica / Vault
Yes

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SSD Cache

SSD read-only Cache
Yes

SSD read-write cache
Yes (Only in QTS 5.1.0)

SSD write-only cache
Yes (Only in QTS 5.1.0)

SSD read & write log cache
Yes (Only in QuTS hero h5.1.0)

SSD dedicated ZIL cache
Yes (Only in QuTS hero h5.1.0)

SSD Cache RAID
QuTS hero h5.1.0: 0, 1, 10 (journal)
QTS 5.1.0: 0, 1, 5, 6, 10

SSD profiling tool
Yes (Only in QTS 5.1.0)

File Server

File Server

• File sharing across Windows, Mac, and Linux/UNIX

• Microsoft networking (CIFS/SMB)

• Apple networking (AFP)

• NFS version 3/4 services

FTP Server

QuTS hero h5.1.0

• FTP, SFTP and TFTP protocols

• FTP over SSL/TLS (explicit FTPS)

• FXP support

QTS 5.1.0

• QuFTP

• FTP, SFTP and TFTP protocols

• FTP over SSL/TLS (explicit FTPS)

• FXP support

Maximum FTP connection
1024

Shared Folder Data Compression
Yes

Shared Folder Data Deduplication
Yes

Shared Folder WORM
Yes

File Station (Web)
Yes

Object Storage
Yes

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Users & Permissions

Local user account
QuTS hero h5.1.0: 16000
QTS 5.1.0: 4,096

Local group account
512

Domain user/group account
200000

Domain Security
Yes

Domain Controller
Yes

Shared folder permission
Yes

Advanced folder permission
(AFP, CIFS/SMB, FTP, and File Station) (Only in QTS 5.1.0)

Windows ACL
QuTS hero h5.1.0: Yes
QTS 5.1.0: Yes (CIFS/SMB)

User quota
Yes

Group quota
Yes

Folder quota
QuTS hero h5.1.0: Yes
QTS 5.1.0: Yes, (Snapshot shared folder)

Home folder
Yes

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System Management

Resource Monitor
Yes

SNMP
V2, V3

Network recycle bin

• Recover files deleted using AFP, CIFS/SMB, and File Station

• Automatic cleanup and file type filter

System Log & Notification Center
Log recording: 3,000 event per second

Smart Fan
Yes

Schedule on/off
Yes

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Networking

Internet protocol
IPv4, IPv6

Virtual Switch
Yes

Port trunking
Yes, (7 modes)

VLAN
Yes

DHCP Server
Yes

DDNS
Yes (Dynamic Domain Name Service)

Network access protection
SSH, Telnet, HTTP(S), FTP, CIFS/SMB, and AFP (with auto-blocking)

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Security

Security Counselor
Yes

Malware Remover
Yes

AES 256-bit Volume Encryption
Yes (validated by FIPS 140-2 CAVP)

2-step verification
Yes

Allow/Deny List
Yes

Access Protection
Yes

Service binding
Yes

Firewall
Yes

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Virtualization

VMware vSphere Ready
Yes

Windows Server certificated
Yes

Citrix Ready
Yes

vSphere Web Client Plug-in
Yes

VMware vSphere VAAI for iSCSI
Yes

VMware vSphere VAAI for NAS
Yes

Windows ODX
Yes

Windows/VMware Snapshot Agent
Yes

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Connectivity & Web

HTTP/HTTPS Connections
TLS 1.0/1.1/1.2/1.3

Supports WebDAV Connection
Yes

Supports Virtual Hosts
32

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Sync & Hybrid Cloud

Qsync

• Management Mode: User customization, Central

• Qsync client supported platforms: Windows, macOS, Ubuntu, Android, and iOS

• Maximum number of version control: 64

HybridMount

QuTS hero h5.1.0

• File Cloud Gateway: Concurrent Connections = 80 Upload & 80 Download

• Network Drive Mount

• Free cloud gateway sessions: 2

QTS 5.1.0

• File Cloud Gateway: Concurrent Connections = 20 Upload & 20 Download

• Network Drive Mount

• Free cloud gateway sessions: 2

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Backup & Restore

HBS (Hybrid Backup Sync)

• NAS to NAS backup

• Cloud Backup

• Cloud Sync

• 2-way and Active Sync

• Backup Deduplication

• Apple Time Machine Backup

• External drive backup

• Maximum number of backup job: 400

Hyper Data Protector
Yes

Boxafe

• Office 365 Backup

• Google Workspace Backup

Full-text search
Yes

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Applications

Qsirch

• Previews: Photos, music, videos, PDFs, Gmail, and others

• Integrate Mac Finder

• Advanced picture search

• Search filters

QuMagie

• Browse photos

• Virtual and smart albums

• AI-assisted photo management: People, things, places, and others

Antivirus (free)
Yes

McAfee (License)
Yes

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VPN & Authentication

QVPN Service

• Remote Access: PPTP, L2TP/IPSec, OpenVPN, QBelt (QNAP proprietary)

• Supported utility and mobile app: Windows, macOS, iOS, and Android

• Supported maximum clients: 100

LDAP Server
Yes

RADIUS
Yes

SQL server
Yes

License Center
Yes

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Multimedia

Multimedia Console
Yes

Photo Station
Yes

Music Station
Yes

Video Station
Yes

Download Station
Yes

Notes Station
Yes

Qfiling
Yes

Media Streaming add-on
Yes

QmailAgent
Yes

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Networking & Management

QuWAN
Yes

DA Driver Analyzer
Yes

Q’center
Yes

Q’center Server
Yes

Q’center Agent
Yes

Connect to Q’center
Yes

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Virtualization & Containers

Virtualization Station

QuTS hero h5.1.0

• Supports Virtual machine instances: Windows, Linux, Unix, and Android

• VM Importing, exporting, cloning, snapshot capturing, backup, and restoration: All function is Fine

• Virtual switches: Can create a virtual switch

• Suggested n0. of VM virtual machine instances: 8

QTS 5.1.0

• Supports Virtual machine instances: Windows, Linux, Unix, and Android

• VM Importing, exporting, cloning, snapshot capturing, backup, and restoration: All function is Fine

• Virtual switches: Can create a virtual switch

• GPU pass-through: Not support GPU

• Suggested n0. of VM virtual machine instances: 8

Container Station

• Supported type: LXC/LXD and Docker

• Docker Hub Registry

• Container importing and exporting

• Console mode

Linux Station

QuTS hero h5.1.0

• Supports Ubuntu versions: 16.04, 18.04, and 20.04

QTS 5.1.0

• Supports Ubuntu versions: 18.04, and 20.04

Linux Station Center
Yes

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QVR Surveillance

QVR Pro

• Recording Technique: Index database based

• License Type: Perpetual

• User-defined trigger events

• Metadata

• QVR Pro Client (Desktop): Windows, macOS, and QNAP HybridDesk Station

• QVR Pro Client (Mobile): Android and iOS

• Recording camera streams: H.264

• Free built-in camera channels: 8

QVR Elite

• Recording Technique: Standard MP4 file based

• License Type: Subscription-based

• User-defined trigger events

• QVR Pro Client (Desktop): Windows, macOS, and QNAP Hybrid Desk Station

• QVR Pro Client (Mobile): Android and iOS

• Recording camera streams: H.264

• Free built-in camera channels: 2

QVR Pro Client

• Dynamic View Layout

• Windows

• Mac

• HybridDesktop

• iOS

• Android

• Only in QTS 5.1.0

QVR Center

• Log management

• Central monitoring across multiple servers

QVR Guard

• Failover design

• Viewing task details

• Automatic switch between Standby and Takeover

QVR Human
Yes (Only in QTS 5.1.0)

QVR Face
Yes (Only in QTS 5.1.0)

QVR DoorAccess
Yes (Only in QTS 5.1.0)