Brand: QNAP

Product Code: TS-855eU-8G

Availability: 6

Weight: 8.10kg

Dimensions: 8.86cm x 43.20cm x 29.74cm

QNAP 8 Bay NAS TS-855eU-8G

Price: 117,567.00EGP

Qty: - +

TS-855eU-8G

Name: QNAP NAS TS-855eU-8G
Brand: QNAP
SKU: TS-855eU-8G
Price: 117567.00 EGP
Availability: InStock
Rating: 4.6 (5 reviews)

An 8-bay, 2U short-depth rackmount NAS designed for compact IT deployments—built for fast backup, shared storage, and virtualization with dual 2.5GbE, M.2 NVMe acceleration, and PCIe expandability.QNAP Rackmount NAS • 2U Short-Depth • Model: TS-855eU-8G

QNAP TS-855eU 2U short-depth rackmount NAS (front view)

8-Core Intel® Atom® Performance

Intel Atom C5125 (8 cores, 2.8GHz) delivers strong multitasking for business workloads.

2U Short-Depth Design

Optimized for compact racks, wall-mount AV cabinets, and tight network rooms (depth ~11.7").

Fast Networking + Expandability

Dual 2.5GbE built-in, plus PCIe Gen 3 slots for 10/25GbE or Fibre Channel.

Product Images

Use these images as-is, or download + host locally.

Front View

8-bay 2U rackmount chassis.

Rear View

Ports & cooling layout (may require local hosting depending on your site rules).

Overview

Built for shared storage, backup, and virtualization in tight rack spaces.

The QNAP TS-855eU-8G is a 2U short-depth rackmount NAS that fits where standard servers don’t—small racks, wall-mount cabinets, AV rooms, and space-limited IT closets. Powered by an 8-core Intel Atom C5125 and scalable memory, it delivers the compute and I/O flexibility needed for modern business storage: fast file access, reliable backup and recovery, snapshot-based protection, and virtualization-ready shared storage.

Why it’s a great fit

Compact depth for flexible deployment in small racks.
Dual 2.5GbE for faster file sharing using existing Cat5e cabling.
Dual M.2 NVMe slots for SSD caching or SSD system pool.
Dual PCIe slots to scale networking or add SAN connectivity.

Ideal for

SMB file server & centralized storage
Backup target + disaster recovery
Virtualization storage (VMware / Hyper-V use cases)
Surveillance recording storage
Branch offices & remote sites

Networking & Speed

Upgrade to 2.5GbE without changing your cabling.

Diagram showing faster 2.5GbE networking using existing cables with QNAP TS-855eU

With two built-in 2.5GbE RJ45 ports, the TS-855eU-8G enables smooth collaboration and faster transfers for teams. Need more bandwidth? Add 10/25GbE NICs via PCIe to support demanding workloads such as virtualization, large media projects, or multi-user backup.

SSD Acceleration & PCIe Expandability

M.2 NVMe cache + upgradeable I/O when you grow.

Internal view highlighting M.2 NVMe SSD slots and components inside QNAP TS-855eU

Dual M.2 NVMe (PCIe Gen 3)

Install M.2 2280 NVMe SSDs for caching and improved IOPS, or build an SSD pool for system / metadata acceleration.

Example of QNAP network expansion card used via PCIe for higher speeds

PCIe Expansion

Add 5/10/25GbE networking or Fibre Channel cards to match your infrastructure and performance needs.

Common Deployments

Where TS-855eU-8G shines.

Virtualization Storage

Centralize VM storage with reliable shared volumes, snapshots, and upgrade paths (10/25GbE or FC via PCIe).

Backup & Disaster Recovery

Use as a primary backup target with snapshot protection and fast restore paths for critical workloads.

SMB File Server

Consolidate team files with permissions, fast search, and streamlined access across Windows/macOS/Linux clients.

Surveillance Recording

Build cost-effective recording storage with the capacity to scale and the footprint to fit compact environments.

Operating System	QuTS hero h5.2.5
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 (latest version) Google Chrome (latest version) Microsoft Edge (latest version) 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 Pool	✓
SED Storage Pool	✓
Maximum Pool size	5 PB
Maximum number of storage pool	128
Shared Folder Type	Thick, Thin
Maximum shared folder size	5 PB
Maximum number of shared folder	256
JBOD Expansion	✓
VJBOD / VJBOD Cloud	✓
iSCSI Service	✓
Fibre Channel Service	✓
LUN Type	Thick, Thin
Block-based iSCSI LUN	✓
Maximum LUN size	1024 TB
Maximum number of targets LUN	256
RAID Type	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
RAID Group	✓ To ensure data security, system stability, and storage performance, the maximum number of drives for a single RAID group is now 16 (applicable to RAID 5, RAID 6, RAID TP, and subgroups of RAID 50 and RAID 60). Nevertheless, users can combine multiple RAID groups into a large storage pool that contains more than 16 drives, using RAID 50, RAID 60, or RAID 10 as the RAID configuration. This enhancement will only be applied to new RAID groups. All existing RAID groups and storage systems will not be affected.
RAID Expansion (by replacing bigger Disks)	✓
Storage Pool Expansion (by adding RAID Group)	✓
RAID Hot Spare	Global, Local
RAID Sync/Rebuild/Scrubbing	✓
End-to-End data integrity	✓
Silent error detection and self-healing	✓
Internal drive	ZFS
External drive	EXT3, EXT4, NTFS, FAT32, HFS+, and exFAT
Disk, Enclosure Locate	✓
Disk S.M.A.R.T. Scan	✓
Disk S.M.A.R.T. Data Migration	✓
Ironwolf Health Management	✓
Secure Erase	✓
SSD Trim	✓
SSD Life Estimation	✓
Disk Roaming	✓
Disk Standby	✓
Shared Folder Snapshot	✓
LUN Snapshot	✓
Maximum Snapshot (Per System)	Check maximum number of snapshots of your NAS
Maximum Snapshot (Per Volume / LUN)	Check maximum number of snapshots of your NAS
Minimum Snapshot Interval	1 minute
Snapshot Retention Policy	✓
Self-serve Snapshot Recovery	✓
Application Consisted Snapshot	✓
Snapshot Full Clone	✓
Snapshot Instant Clone	✓
Snapshot Replica / Vault	✓
SSD read-only Cache	✓
SSD read & write log cache	✓
SSD dedicated ZIL cache	✓
SSD Cache Maximum Size	Check your QNAP NAS cache capacity and RAM requirements
SSD Cache RAID	0, 1, 10 (journal)
External Device Management	✓
Mount Smart Phone (MTP)	✓
External RAID Device (QNAP so on) Management (External Device Mode)	✓
External RAID Device (QNAP so on) Management (NAS Mode)	✓
File Server	File sharing across Windows, Mac, and Linux/UNIX Microsoft networking (CIFS/SMB) Apple networking (AFP) NFS version 3/4 services
FTP Server	FTP, SFTP and TFTP protocols FTP over SSL/TLS (explicit FTPS) FXP support
Maximum FTP connection	1024
Shared Folder Data Compression	✓
Shared Folder Data Deduplication	✓
Shared Folder WORM	✓
File Station (Web)	✓
Object Storage	✓
Local user account	16,000
Local group account	512
Domain user/group account	200,000
Domain Security	✓
Domain Controller	✓
Shared folder permission	✓
Windows ACL	✓
User quota	✓
Group quota	✓
Folder quota	✓
Home folder	✓
Resource Monitor	✓
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	✓
Schedule on/off	✓
Internet protocol	IPv4, IPv6
Virtual Switch	✓
Port trunking	✓, (7 modes)
VLAN	✓
DHCP Server	✓
DDNS (Dynamic Domain Name Service)	✓
Network access protection with auto-blocking	SSH, Telnet, HTTP(S), FTP, CIFS/SMB, and AFP
Security Counselor	✓
Malware Remover	✓
AES 256-bit Folder Encryption validated by FIPS 140-2 CAVP	✓
2-step verification	✓
Allow/Deny List	✓
Access Protection	✓
Service binding	✓
Firewall	✓
VMware vSphere Ready	✓
Windows Server certifcated	✓
Citrix Ready	✓
vSphere Web Client Plug-in	✓
VMware vSphere VAAI for iSCSI	✓
VMware vSphere VAAI for NAS	✓
Windows ODX	✓
Windows/VMware Snapshot Agent	✓
HTTP/HTTPS Connections	TLS 1.0/1.1/1.2/1.3
Supports WebDAV Connection	✓
Supports Virtual Hosts	32
Qsync	✓ Note: At least 1 GB RAM is required.
[Qsync] Management Mode	User customization, Central
[Qsync] Qsync client supported platforms	Windows, macOS, Ubuntu, Android, and iOS
[Qsync] Maximum number of version control	64
HybridMount	✓ Note: At least 1 GB RAM is required.
[HybridMount] File Cloud Gateway	Concurrent Connections = 80 Upload & 80 Download
[HybridMount] Network Drive Mount	✓
[HybridMount] Free cloud gateway sessions	2
HBS (Hybrid Backup Sync)	✓ Note: At least 1 GB RAM is required.
[HBS (Hybrid Backup Sync)] NAS to NAS backup	✓
[HBS (Hybrid Backup Sync)] Cloud Backup	✓
[HBS (Hybrid Backup Sync)] Cloud Sync	✓
[HBS (Hybrid Backup Sync)] 2-way and Active Sync	✓
[HBS (Hybrid Backup Sync)] Backup Deduplication	✓
[HBS (Hybrid Backup Sync)] Apple Time Machine Backup	✓
[HBS (Hybrid Backup Sync)] External drive backup	✓
[HBS (Hybrid Backup Sync)] Maximum number of backup job	400
Hyper Data Protector	✓
Boxafe	✓ Note: At least 4 GB RAM is required.
[Boxafe] Office 365 Backup	✓
[Boxafe] Google Workspace Backup	✓
[Boxafe] Full-text search	✓
Qsirch	✓ Note: This feature is supported by all QNAP NAS devices with at least 2 GB of memory
[Qsirch] Previews	Photos, music, videos, PDFs, Gmail, and others
[Qsirch] Integrate Mac Finder	✓
[Qsirch] Advanced picture search	✓
[Qsirch] Search filters	✓
QuMagie	✓ Note: At least 1 GB RAM is required.
[QuMagie] Browse photos	✓
[QuMagie] Virtual and smart albums	✓
[QuMagie] AI-assisted photo management	People, things, places, and others
Antivirus (free)	✓
McAfee (License)	✓
QVPN Service	✓ Note: At least 1 GB RAM is required.
[QVPN Service] Remote Access	PPTP, L2TP/IPSec, OpenVPN, QBelt (QNAP proprietary)
[QVPN Service] Supportedd utility and mobile app	Windows, macOS, iOS, and Android
[QVPN Service] Supported maximum clients	100
LDAP Server	✓
RADIUS	✓
SQL server	✓
License Center	✓
Multimedia Console	✓
Photo Station	✓
Music Station	✓
Video Station	✓
Download Station	✓
Notes Station	✓
Qfiling	✓
Media Streaming add-on	✓
QmailAgent	✓
QuWAN	✓
DA Driver Analyzer	✓
Q'center	✓ Note: The application is available in the App Center and in virtual appliance marketplaces (VMware vSphere ESXi and Microsoft Hyper-V).
Q'center Server	✓
Q'center Agent	✓
Connect to Q'center	✓
Virtualization Station	✓ Note: At least 4 GB RAM is required.
[Virtualization Station] Supports Virtual machine instances	Windows, Linux, Unix, and Android
[Virtualization Station] VM importing, exporting, cloning, snapshot capturing, backup, and restoration	All function is Fine.
[Virtualization Station] Virtual switches	Can create a virtual switch
[Virtualization Station] Suggested number of virtual machine instances	8 The actual number of virtual machine instances may vary by the memory installed on NAS (e.g. 1 VM= 1 thread for 1 vCPU and 1GB memory). Please expend memory if needed.
Container Station	✓ Note: At least 1 GB RAM is required.
[Container Station] Supported type	LXC/LXD and Docker Note: LXD has been supported after Container Station 2.4
[Container Station] Docker Hub Registry	✓
[Container Station] Container importing and exporting	✓
[Container Station] Console mode	✓
Linux Station	✓ Notification: At least 4 GB RAM is required.
[Linux Station] Supports Ubuntu versions	16.04, 18.04, and 20.04
Linux Station Center	✓
QVR Elite	✓ Note: At least 1 GB RAM is required. The maximum number of channels supported varies by NAS model, network configuration, and camera settings. For more information, visit https://www.qnap.com/go/qvr-nas-selector.
[QVR Elite] Recording Technique	Standard MP4 file based
[QVR Elite] License Type	Subscription-based
[QVR Elite] User-defined trigger events	✓
[QVR Elite] QVR Pro Client (Desktop)	Windows, macOS, and QNAP HybridDesk Station
[QVR Elite] QVR Pro Client (Mobile)	Android and iOS
[QVR Elite] Recording camera streams	H.264
[QVR Elite] Free built-in camera channels	2
[QVR Elite] Expandable camera channels	Developing
QVR Center	✓ Note: At least 4 GB RAM is required.
[QVR Center] Log management	✓
[QVR Center] Central monitoring across multiple servers	✓

Operating System	QTS 5.2.5
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 (latest version) Google Chrome (latest version) Microsoft Edge (latest version) 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 Pool	✓
SED Storage Pool	✓
Maximum Pool size	308 TB
Maximum number of storage pool	128
Volume Type	Thick, Thin, Static
Maximum volume size	250 TB Note: At least 4 GB RAM is required.
Maximum number of volume	128
Maximum shared folder size	250 TB
Maximum number of shared folder	512
JBOD Expansion	✓
VJBOD / VJBOD Cloud	✓
iSCSI Service	✓
Fibre Channel Service	✓
LUN Type	Thick, Thin
File-based iSCSI LUN	✓
Block-based iSCSI LUN	✓
Maximum LUN size	250 TB Note: At least 4 GB RAM is required.
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
Auto Tiering	✓ Requires minimum 2GB memory.
RAID Type	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	✓ To ensure data security, system stability, and storage performance, the maximum number of drives for a single RAID group is now 16 (applicable to RAID 5, RAID 6, RAID TP, and subgroups of RAID 50 and RAID 60). Nevertheless, users can combine multiple RAID groups into a large storage pool that contains more than 16 drives, using RAID 50, RAID 60, or RAID 10 as the RAID configuration. This enhancement will only be applied to new RAID groups. All existing RAID groups and storage systems will not be affected.
RAID Level Migration	✓
RAID Expansion (by adding Disk)	✓
RAID Expansion (by replacing bigger Disks)	✓
Storage Pool Expansion (by adding RAID Group)	✓
RAID Hot Spare	Global, Local
RAID Sync/Rebuild/Scrubbing	✓
Internal drive	EXT4
External drive	EXT3, EXT4, NTFS, FAT32, HFS+, and exFAT (optional for ARM model) Note: To use exFat in certain models you must purchase an exFAT driver license from License Center.
Disk, Enclosure Locate	✓
Disk S.M.A.R.T. Scan	✓
Disk S.M.A.R.T. Data Migration	✓
Ironwolf Health Management	✓
Secure Erase	✓
SSD Trim	✓
SSD Life Estimation	✓
Disk Roaming	✓
Disk Standby	✓
Volume Snapshot	✓
LUN Snapshot	✓
Maximum Snapshot (Per System)	Check maximum number of snapshots of your NAS
Maximum Snapshot (Per Volume / LUN)	Check maximum number of snapshots of your NAS
Minimum Snapshot Interval	5 minutes
Snapshot Retention Policy	✓
Self-serve Snapshot Recovery	✓
Application Consisted Snapshot	✓
Snapshot Full Clone	✓
Snapshot Replica / Vault	✓
SSD read-only Cache	✓
SSD read-write cache	✓
SSD write-only cache	✓
SSD Cache Maximum Size	Check your QNAP NAS cache capacity and RAM requirements
SSD Cache RAID	0, 1, 5, 6, 10
SSD profiling tool	✓
External Device Management	✓
Mount Smart Phone (MTP)	✓
External RAID Device (QNAP so on) Management (External Device Mode)	✓
External RAID Device (QNAP so on) Management (NAS Mode)	✓
File Server	File sharing across Windows, Mac, and Linux/UNIX Microsoft networking (CIFS/SMB) Apple networking (AFP) NFS version 3/4 services
FTP Server	QuFTP FTP, SFTP and TFTP protocols FTP over SSL/TLS (explicit FTPS) FXP support
Maximum FTP connection	1024
File Station (Web)	✓
Object Storage	✓
Local user account	4,096
Local group account	512
Domain user/group account	200,000
Domain Security	✓
Domain Controller	✓
Shared folder permission	✓
Advanced folder permission	✓, (AFP, CIFS/SMB, FTP, and File Station)
Windows ACL	✓, (CIFS/SMB)
User quota	✓
Group quota	✓
Folder quota	✓, (Snapshot shared folder)
Home folder	✓
Resource Monitor	✓
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	✓
Schedule on/off	✓
Internet protocol	IPv4, IPv6
Virtual Switch	✓
Port trunking	✓, (7 modes)
VLAN	✓
DHCP Server	✓
DDNS (Dynamic Domain Name Service)	✓
Network access protection with auto-blocking	SSH, Telnet, HTTP(S), FTP, CIFS/SMB, and AFP
Security Counselor	✓
Malware Remover	✓
AES 256-bit Volume Encryption validated by FIPS 140-2 CAVP	✓
2-step verification	✓
Allow/Deny List	✓
Access Protection	✓
Service binding	✓
Firewall	✓
VMware vSphere Ready	✓
Windows Server certifcated	✓
Citrix Ready	✓
vSphere Web Client Plug-in	✓
VMware vSphere VAAI for iSCSI	✓
VMware vSphere VAAI for NAS	✓
Windows ODX	✓
Windows/VMware Snapshot Agent	✓
HTTP/HTTPS Connections	TLS 1.0/1.1/1.2/1.3
Supports WebDAV Connection	✓
Supports Virtual Hosts	32
Qsync	✓ Note: At least 1 GB RAM is required.
[Qsync] Management Mode	User customization, Central
[Qsync] Qsync client supported platforms	Windows, macOS, Ubuntu, Android, and iOS
[Qsync] Maximum number of version control	64
HybridMount	✓ Note: At least 1 GB RAM is required.
[HybridMount] File Cloud Gateway	Concurrent Connections = 20 Upload & 20 Download
[HybridMount] Network Drive Mount	✓
[HybridMount] Free cloud gateway sessions	2
HBS (Hybrid Backup Sync)	✓ Note: At least 1 GB RAM is required.
[HBS (Hybrid Backup Sync)] NAS to NAS backup	✓
[HBS (Hybrid Backup Sync)] Cloud Backup	✓
[HBS (Hybrid Backup Sync)] Cloud Sync	✓
[HBS (Hybrid Backup Sync)] 2-way and Active Sync	✓
[HBS (Hybrid Backup Sync)] Backup Deduplication	✓
[HBS (Hybrid Backup Sync)] Apple Time Machine Backup	✓
[HBS (Hybrid Backup Sync)] External drive backup	✓
[HBS (Hybrid Backup Sync)] Maximum number of backup job	400
Hyper Data Protector	✓
Boxafe	✓ Note: At least 4 GB RAM is required.
[Boxafe] Office 365 Backup	✓
[Boxafe] Google Workspace Backup	✓
[Boxafe] Full-text search	✓
Qsirch	✓ Note: This feature is supported by all QNAP NAS devices with at least 2 GB of memory
[Qsirch] Previews	Photos, music, videos, PDFs, Gmail, and others
[Qsirch] Integrate Mac Finder	✓
[Qsirch] Advanced picture search	✓
[Qsirch] Search filters	✓
QuMagie	✓ Note: At least 1 GB RAM is required.
[QuMagie] Browse photos	✓
[QuMagie] Virtual and smart albums	✓
[QuMagie] AI-assisted photo management	People, things, places, and others
Antivirus (free)	✓
McAfee (License)	✓
QVPN Service	✓ Note: At least 1 GB RAM is required.
[QVPN Service] Remote Access	PPTP, L2TP/IPSec, OpenVPN, WireGuard, QBelt (QNAP proprietary)
[QVPN Service] Supportedd utility and mobile app	Windows, macOS, iOS, and Android
[QVPN Service] Supported maximum clients	100
LDAP Server	✓
RADIUS	✓
SQL server	✓
License Center	✓
Multimedia Console	✓
Photo Station	✓
Music Station	✓
Video Station	✓
Download Station	✓
Notes Station	✓
Qfiling	✓
Media Streaming add-on	✓
QmailAgent	✓
QuWAN	✓
DA Driver Analyzer	✓
Q'center	✓ Note: The application is available in the App Center and in virtual appliance marketplaces (VMware vSphere ESXi and Microsoft Hyper-V).
Q'center Server	✓
Q'center Agent	✓
Connect to Q'center	✓
Virtualization Station	✓ Note: At least 4 GB RAM is required.
[Virtualization Station] Supports Virtual machine instances	Windows, Linux, Unix, and Android
[Virtualization Station] VM importing, exporting, cloning, snapshot capturing, backup, and restoration	All function is Fine.
[Virtualization Station] Virtual switches	Can create a virtual switch
[Virtualization Station] GPU pass-through	Not support GPU
[Virtualization Station] Suggested number of virtual machine instances	8 The actual number of virtual machine instances may vary by the memory installed on NAS (e.g. 1 VM= 1 thread for 1 vCPU and 1GB memory). Please expend memory if needed.
Container Station	✓ Note: At least 1 GB RAM is required.
[Container Station] Supported type	LXC/LXD and Docker Note: LXD has been supported after Container Station 2.4
[Container Station] Docker Hub Registry	✓
[Container Station] Container importing and exporting	✓
[Container Station] Console mode	✓
Linux Station	✓ Notification: At least 4 GB RAM is required.
[Linux Station] Supports Ubuntu versions	18.04, and 20.04
Linux Station Center	✓
QVR Pro	✓ Note: At least 4 GB RAM is required. The maximum number of channels supported varies by NAS model, network configuration, and camera settings. For more information, visit https://www.qnap.com/go/qvr-nas-selector.
[QVR Pro] Recording Technique	Index database based
[QVR Pro] License Type	Perpetual
[QVR Pro] User-defined trigger events	✓
[QVR Pro] Metadata	✓
[QVR Pro] QVR Pro Client (Desktop)	Windows, macOS, and QNAP HybridDesk Station
[QVR Pro] QVR Pro Client (Mobile)	Android and iOS
[QVR Pro] Recording camera streams	H.264
[QVR Pro] Free built-in camera channels	8
QVR Elite	✓ Note: At least 1 GB RAM is required. The maximum number of channels supported varies by NAS model, network configuration, and camera settings. For more information, visit https://www.qnap.com/go/qvr-nas-selector.
[QVR Elite] Recording Technique	Standard MP4 file based
[QVR Elite] License Type	Subscription-based
[QVR Elite] User-defined trigger events	✓
[QVR Elite] QVR Pro Client (Desktop)	Windows, macOS, and QNAP HybridDesk Station
[QVR Elite] QVR Pro Client (Mobile)	Android and iOS
[QVR Elite] Recording camera streams	H.264
[QVR Elite] Free built-in camera channels	2
QVR Pro Client	✓
[QVR Pro Client] Dynamic View Layout	✓
[QVR Pro Client] Windows	✓
[QVR Pro Client] Mac	✓
[QVR Pro Client] HybridDesktop	✓
[QVR Pro Client] iOS	✓
[QVR Pro Client] Android	✓
QVR Center	✓ Note: At least 4 GB RAM is required.
[QVR Center] Log management	✓
[QVR Center] Central monitoring across multiple servers	✓
QVR Guard	✓ Note: At least 4 GB RAM is required.
[QVR Guard] Failover design	✓
[QVR Guard] Viewing task details	✓
[QVR Guard] Automatic switch between Standby and Takeover modes	✓
QVR Human	✓
QVR Face	✓ The maximum number of channels supported varies by NAS model, network configuration, and camera settings. For more information, visit https://www.qnap.com/solution/qvr-face/en-us/
QVR DoorAccess	✓

NAS
CPU Model	Intel ® Atom® C5125 8-core processor, 2.8GHz
CPU Architecture	64-bit x86
Hardware Encryption Engine	✓ (AES-NI)
Memory	8 GB non-ECC SODIMM DDR4 (1 x 8 GB)
Drive Bays	8
Compatible Drive Type	3.5-inch SATA hard disk drives 2.5-inch SATA hard disk drives 2.5-inch SATA solid state drives
Hot Swappable Drive	✓ (Not supported M.2 SSD)
USB 3.2 Gen 1 Port	4
System Fan	3 x 60mm, 12VDC
Power Supply Unit / Adapter	250W PSU, 100 - 240V
Total Memory Slots	2 x SODIMM DDR4 Support ECC memory For dual-DIMM configuration, you must use a pair of identical DDR4 modules.
Maximum Memory Capacity	64 GB ( 2 x 32 GB)
M.2 Drive Slots	2 x M.2 2280 (PCIe Gen 3 x 4)
PCIe Expansion	2 x PCIe Gen3 (x4) Slot 1: PCIe Gen 3 (x4) Slot 2: PCIe Gen 3 (x4)
Form Factor (RU)	2U Short Depth Rackmount
Floating Point Unit	✓
Flash Memory	5GB (Dual boot OS protection)
Wake on LAN (WOL)	✓
Jumbo Frame	✓
HDMI™ Output	Optional via a PCIe graphics card
LED Indicators	HDD 1-8, Status, LAN, USB, Power
Buttons	Power, Reset
Operating Temperature	0 - 40 °C (32°F - 104°F)
Storage Temperature	-20 - 70°C (-4°F - 158°F)
Relative Humidity	5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F)
Power Consumption: Disk Standby Mode	49.799
System Warning	Buzzer
Max. Number of Concurrent Connections (CIFS) - with Max. Memory	2500