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General

Manufacturer Synology Buffalo Technology
Model DS1511+ TS-QVH4.0TL/R6
Lowest Price $359.99 Compare Synology DS1511+ prices $649.00 Compare Buffalo Technology TS-QVH4.0TL/R6 prices
Warranty 3 years limited 2 years limited

Ports

RJ45 Ports 2 x 10/100/1000M 2 x 10/100/1000M
USB Ports 4 x USB2.0 2 x USB3.0 + 2 x USB2.0
eSATA Ports Yes No
Other Ports 1 VGA (recovery only) 1 x PCIe

Storage

Drive Bays 5 4
Hard Disk Interface 5 x SATA 4 x SATA
Hard Disk Size Diskless System 4TB
Rotational Speed 7200RPM 7200RPM

Features

165.91 MB/sec Writing, 197.8 MB/sec Reading

Windows ADS and ACL support

iSCSI Support as Virtualization Solution

Scale up to 15 Drives with Synology DX510

Expandable RAM Size (up to 3GB)

2 LAN with Failover and Link Aggregation Support

Hot-swappable Hard Drives
Front loading hot swap hard drives with lockable front panel

Active Directory support

Disk quota (soft quota) support prevents users/groups from consuming too much disk space

Scheduled shut down eliminates unnecessary access and reduces energy costs

DFS (Distributed File System) support

Easy setup wizard and management through intuitive web interface

Hot swap hard drive trays behind the front panel for easy drive access and replacement

NAS configuration tool allows exporting settings to a ¬file for easy, one-click
deployment of multiple TeraStations

Improved CPU speed enables faster data transfer

10/100/1000 Gigabit Ethernet with Jumbo Frame

Share level replication feature with device failover

Hot spare enables automatic RAID build in case of a drive failure

Optional AES-128 bit hard drive encryption

Large silent fan cools hard drive efficiently

Advanced ventilation design reduces internal heat

LCD Display shows important TeraStation information and disk status

Built-in FTP server functionality

BitTorrent Client: Download digital content from the Internet directly to your TeraStation

DLNA CERTIFIED built-in media server for streaming multimedia content

10 licenses of NovaBACKUP Business Essentials Backup Included: Back up 10 Windows PCs, Windows Servers, Exchange or MS SQL databases

Form Factor

Dimensions 9.76" x 9.17" x 6.18" 6.7 x 8.5 x 9.1 in
Weight 9.37 lbs. lbs Average 17.6 lbs lbs
Form Factor Desktop Desktop

Networking

Data Link Protocol Ethernet Ethernet
Network Interface Controller Ethernet 1000 Mb-s
DLNA Certified Yes Yes

Hardware

Standards Gigabit Ethernet IEEE 802.3ab IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Supported Protocols Networking Protocols: CIFS, AFP, FTP, iSCSI, Telnet, SSH, NFS, WebDAV, SNMP

File System:
- EXT4
- EXT3 (External Disk Only)
- FAT32 (External Disk Only)
- NTFS (External Disk Only)
Networking: TCP/IP
File Sharing: CIFS/SMB, AFP, HTTP/HTTPS, FTP/SFTP/FTPS, NFS
Directory Integration: LDAP, Active Directory
Management: HTTP/HTTPS
Time Synchronization: NTP
Processor 1.8GHz, Dual Core, with floating point Intel Atom D510 1.66 GHz Dual-Core Processor
Memory 1GB RAM 2 GB RAM
RAID Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 5+Spare, RAID 6, RAID 10 RAID 0, 1, 5, 6, 10, and JBOD
LEDs Status, LAN, USB, eSATA, HDD HDD Power, Activity (Yellow) / Fail (Red)
LAN_WAN Activity (Green) /
USB_COPY_Busy (Blue)
USB_COPY_ Fail (Red)
Power AC Input Power Voltage: 100V to 240V
Power Frequency: 50Hz to 60Hz, Single Phase
Power Consump
100-240 VAC 50/60Hz
Temperature 5°C - 35 °C 41-95°
Humidity 5-95% R.H 0-80% RH non-condensing

Software

Operating System Supported Clients
- Windows 2000 onward
- Mac OS X 10.3 onward
- Ubuntu 9.04 onward

Supported Mobile Devices (Photo Station, File Station)
- iPhone OS 2.2.1 onward
- Android OS 1.5 onward
- Windows Mobile (IE Mobile or Opera 9.0 onward)
- Symbian OS 9.1, S60 3rd Edition onward
Windows 7 (32-bit/64-bit), Windows Vista (32-bit/64-bit), Windows XP, Windows 2000, Windows Server 2008, Windows Server 2003, Windows 2000 Server
Management Volume Management
- Synology Hybrid RAID
- Max iSCSI Target:32
- Max iSCSI LUN:256
- Volume Type: Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 5+Spare, RAID 6, RAID 10
- RAID Migration: from Basic to RAID 1, Basic to RAID 5, Basic to RAID 5+Spare, RAID 1 to RAID 5, RAID 1 to RAID 5+Spare, RAID 5 to RAID 5+Spare, RAID 5 to RAID 6
- Expand RAID 1, RAID 5, RAID 5+Spare or RAID 6 with Larger Hard Drives
- Expand RAID 5, RAID 5+Spare or RAID 6 by Adding a Hard Drive On The Fly
- Synology DX510 Support

File Sharing Capability
- Max User Account: 2048
- Max Group: 256
- Max Shared Folder: 256
- Max Concurrent Connections (CIFS, FTP, AFP): 512

Windows Access Control List (ACL) Support

Windows ADS Domain Integration
- Domain Users login via CIFS/AFP/FTP/File Station

Backup Solutions
- Network Backup
- Local Backup
- Time Backup
- Desktop Backup (using Synology Data Replicator 3 or Apple Time Machine backup application)
- 3rd-Party Backup Support

Security
- FTP over SSL/TLS
- IP Auto-Block
- Firewall
- Encrypted Network Backup over rsync
- HTTPS Connection

Management
- DSM Upgrade
- Email Notification
- SMS Notification
- Customized User Quota
- DDNS Support
- PPPoE
- Resource Monitor
- UPS Management
- Multiple Scheduled Power On/Off
- Custom Management UI HTTP/HTTPS Ports

HDD Management
- HDD Hibernation
- S.M.A.R.T.
- Dynamic Bad Sector Mapping

Utilities
- Synology Assistant
- Synology Download Redirector
- Synology Data Replicator

Supported Browsers
- Chrome 5
- Internet Explorer 7 and 8
- Firefox 3.5 and 3.6
- Safari 4 and 5 (Mac)
HTTP/HTTPS

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