The HS-251+, powered by a quad-core Intel® Celeron® 2.0GHz processor, was created as a silent NAS solution that allows users to enjoy files and media with no distractions, providing a perfect match for home theater enthusiasts and audiophiles looking to maximize their audiovisual experience and users who wish to constantly run their systems without any background noise. Coupled with the support of HDMI connectivity for 1080p video playback and hardware transcoding capability, the HS-251+ is an ideal companion at home for multimedia entertainment. Being fanless, the HS-251+ has no internal moving parts for improved reliability and remains clean and dust-free even after long-term usage. The HS-251+ is best used with SSDs or WD® Red™ & Seagate® NAS drives as a reliable storage solution.
Brand: QNAP
SKU: HS-251+-US
Dimensions: 1.62x11.89x8.66 inches
In The Box
HS-251+; 2x Ethernet cable; AC Adapter:'sP-2BAY-ADAPTOR; Power cord; 6x Flat head screw (for 2.5" HDD); 8x Flat head screw (for 3.5" HDD); IR Remote Control:RM-IR002; Quick Installation Guide
Power: External Power Adapter, 60W, 100-240V
Storage: 2x 3.5" or 2.5" SSD or NAS SATA 3Gb/s Hard Drives
Special Feature: Centrally manage and stream photos, music, and videos from the HS-251+ to different rooms from a single device.
Transmission: 2x Gigabit RJ-45 Ethernet port 2x USB 3.0 port2x USB 2.0 port
Hardware
CPU: Intel® Celeron® 2.0GHz quad-core processor (burst up to 2.42GHz)
DRAM: 2GB DDR3L RAM
Flash Memory: 512MB DOM
Hard Disk Drive: 2 x 3.5-inch or 2.5-inch SSD or NAS SATA 3Gb/s Hard Drives
Hard Disk Tray: 2 x Hot-swappable tray
LAN Port: 2 x Gigabit RJ-45 Ethernet port
LED Indicators: Status, LAN
USB: 2 x USB 3.0 port, 2 x USB 2.0 port
Support USB printer, pen drive, and USB UPS etc.
HDMI: 1
Buttons: Power/Status, reset
Alarm Buzzer: System warning
IR Receiver: V (QNAP RM-IR002 Remote Control)
Form Factor: Compact
Sound Level*: Sound pressure (LpAm): 6.5 dB(A)
Temperature: 0-40°C
Humidity: 5-95% RH non-condensing, wet bulb: 27°C
Secure Design: Kensington security slot for theft prevention
Power
Power Supply: External Power Adapter, 60W, 100-240V
Power Consumption (W):
S3 sleep mode: 0.6W
HDD standby: 7.1W
In operation: 15.8W (with 2 x 3TB WD WD30EFRX NAS HDD installed)
Power Management:
Wake on LAN
Internal hard drive standby mode
Scheduled power on/off
Automatic power on after power recovery
USB and network UPS support with SNMP management
System sleep mode (S3)
Software
Operating System: QTS 4.2 (embedded Linux)
Supported Client OS
Apple Mac OS 10.7 or later
Linux and UNIX
Microsoft Windows 7, 8, and 10
Microsoft Windows Server 2003, 2008 R2, 2012, 2012 R2 and 2016
Access Right Management
Batch user creation
Import/Export users
User quota management
Local user access control for CIFS, AFP, FTP, and WebDAV
Application access control for Photo Station, Music Station, Video Station, and File Station
Subfolder permissions support for CIFS/SMB, AFP, FTP, and File Station
Supported Browsers
Microsoft Internet Explorer 10+
Mozilla Firefox 8+
Apple Safari 4+
Google Chrome
myQNAPcloud Service
Private cloud storage and sharing
Free host name registration (DDNS)
Supports myQNAPcloud SSL certificates (DDNS)
Auto router configuration (via UPnP)
Web-based file manager with HTTPS 2048-bit encryption
CloudLink for remote access without any complicated router setup
myQNAPcloud connect for easy VPN connection (Windows VPN utility)
File System
Internal Hard Drive: EXT4
External Hard Drive: EXT3, EXT4, NTFS, FAT32, HFS+
Qsync
Syncs files across multiple devices with SSL support
Selective synchronization for only syncing specific folders
Use team folders as a file center for greater team collaboration (maximum sync tasks:32)
Shares files by links via e-mail
Policy settings for conflicting files and file type filter support
Version control: up to 64 versions
Incremental synchronization for HDD space saving
Unified privilege management
Unified configuration management
Supports central configuration mode
Supports remote erase/restore
Supports shared folders sync
Supports Windows & Mac OS
Networking
TCP/IP (IPv4 & IPv6: Dual Stack)*
Dual Gigabit NICs with a jumbo frame (failover, multi-IP settings, port trunking/NIC teaming)
Service binding based on network interfaces
Squid Proxy server
Proxy client
DHCP client, DHCP server
Protocols: CIFS/SMB, AFP (v3.3), NFS(v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, and SMSC
UPnP & Bonjour Discovery
USB Wi-Fi Adapter Support
* Not all services support IPv6.
Security
Network access protection with Auto-blocking: SSH, Telnet, HTTP(S), FTP, CIFSthe /SMB, AFP
CIFS host access control for shared folders
FIPS 140-2 validated AES 256-bit volume-based and shared folder data encryption*
AES 256-bit external drive encryption*
Importable SSL certificates
Instant Alert via E-mail, SMS, beep, and push service
2-step verification
* Data encryption functions may be unavailable in accordance with the legislative restrictions of some countries.
FTP Server
FTP over SSL/TLS (Explicit)
FXP support
Passive ftp port range control
VPN Server
Secure remote access: PPTP, L2TP/IPsec&OpenVPN VPN services
Max number of clients: 30
iTunes Server
Audio and video sharing for Windows & Mac iTunes
VPN Client
Supported VPN protocols: PPTP &OpenVPN services
PPTP Authentication: PAP, CHAP, MS-CHAP, MS-CHAPv2
PPTP Encryption: None, AES 40/128 bit, AES 256 bit
OpenVPN Encryption: None, AES 40/128 bit, AES 256 bit
Transmission package monitor
OpenVPN port control
OpenVPN link compression
Cloud Backup Station
Amazon S3
Amazon Glacier
WebDAV-based cloud storage
Microsoft Azure
OpenStack
Q'center (NAS CMS)
Multiple NAS monitoring
Utilization history reports
Unified configuration management
Visual display reports
Monitor NAS behind NAT router with Q'center Assistant
Virtual appliances supported for Hyper-V and VMware
App Center
Over 100 official and community software add-ons
Web Server
HTTP/HTTPS Connections
Supports WebDAV Connection
Supports Virtual Host (Max: 32)
Importable SSL Certificate
