Manufacturer Drobo Thecus
Model DRPR1A21 N4200Pro
Lowest Price $1,495.00 Compare Drobo DRPR1A21 prices $699.99 Compare Thecus N4200Pro prices
Warranty 1 year limited 2 years limited


RJ45 Ports 1 x 10/100/1000M 2 x 10/100/1000M
USB Ports 1 x USB2.0 6 x USB2.0 (Front x2, Back x4)
eSATA Ports Yes Yes
Other Ports iSCSI (utilizes Gigabit Ethernet) 1 x PCIe


Drive Bays 8 4
Hard Disk Interface 8 x 3.5" SATA I / SATA II 4 x SATA
Hard Disk Size Diskless System Diskless System
Rotational Speed 7200RPM 7200RPM


Small Footprint
Flexible RAID Data Protection
Cross Platform File Sharing & Backup
DLNA Certified Media Server
Cool and Quiet
Power-Saving (9W~16W)
Vastly Improved Performance
By coupling the power of an Intel Atom D525 Processor with the speed of next-generation DDR3 memory, the N4200PRO delivers wicked performance. Files transfer faster, commands are executed quicker, and more clients can connect to the N4200PRO than ever before.

Dual DOM Protection
It\'s always good to have a backup, and that goes double for system software. If something should go wrong, your data and your entire system could be at risk. Put your mind at ease with Dual DOM OS Redundancy, which gives you a secondary DOM that can reprogram the primary DOM automatically in case of a malfunction for maximum reliability and uptime.

Built-In Mini-UPS
With the N4200PRO\'s built-in Mini-UPS, not even a power outage can slow you down. The Mini-UPS provides power to allow the N4200PRO to write unwritten data to the hard disks and safely shutdown, ensuring the integrity of your data and preserving your memories.

Dual Display Convenience
Wondering how your NAS is doing? Just check out the LCD display on the N4200PRO for convenient status information including HDD activity, LAN activity and USB Copy status. The sharp OLED display even allows you to change various system settings without having to be near a computer.

Rock-Solid Security
The N4200PRO safeguards your data with a number of selectable RAID modes, including RAID 0, 1, 5, 6, 10, JBOD. Changing damaged hard disks is also a breeze with its built-in hot-swap, hot-spare, online RAID migration and expansion, as well as auto-rebuild capabilities. And if you need even more protection, there also AES 256bit RAID volume encryption available.

Multiple Backup Options
Backup your data your way with the N4200PRO\'s multiple backup options. Included with the device are the Thecus® Backup Utility, Nsync remote replication, snapshot support, and even Acronis OEM Backup Software, giving you a wide variety of ways to backup your precious data.

Form Factor

Dimensions 12.17" x 5.46" x 14.1" (W x H x L) 6.30”x 8.15” x 10.59” (160.00mm x 207.00mm x
Weight 16.19 lbs. lbs 13.60lbs lbs
Form Factor Desktop Desktop


Data Link Protocol
Network Interface Controller
DLNA Certified No No


Standards IEEE 802.3, IEEE 802.3u, IEEE 802.3ab IEEE 802.3, IEEE 802.3u
Supported Protocols CIFS
Transport Protocols: TCP/IP, Appletalk
File Protocols: SMB/CIFS, HTTP/HTTPS, FTP, NFS v3, AFP
Processor 1.6GHz Intel Atom D525 (1.8GHz, dual-core)
Memory DDR3 256MB 1GB DDR-3 SDRAM
RAID Synology Hybrid RAID

Max iSCSI Target: 10

Max iSCSI LUN: 10

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 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 Idle system (standby, drives off): 13 watts

Typical idle system - idle, drive spin down mode
External power adapter 19V input (support 2TB and above HDDx4 )
Built-in battery backup module (M
Temperature 5°C - 35 °C 5°C - 40 °C
Humidity 5-95% R.H 0-80% RH non-condensing


Operating System Operating System Support
Windows 2008 Server
Windows 2003 Server
Windows XP (Service Pack 3)
Windows Vista (Service Pack 1)
Mac OS 10.5 or later (Mac OS 10.5.6 or later required for iSCSI)
Mac OS Server 10.5 or later (Mac OS 10.5.6 or later required for iSCSI)
Linux using EXT3

File System Options
Windows: NTFS
Mac OS X: HFS+
Cross-Platform: FAT32
Linux: EXT3
Supports Windows XP, Windows Vista, and Mac OS X 10.4.11 or later
Management File Sharing Capability
- Max User Accounts: 2,048
- Max Groups: 256
- Max Shared Folder: 256
- Max Concurrent Connections(SAMBA, FTP, AFP): 128

Windows Access Control List (ACL)

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

Backup Solutions
- Network Backup
- Local Backup
- Desktop Backup (using Synology Data Replicator 3 or Apple Time Machine backup application)
- Time Backup - Max task number: 2
- USBCopy
- 3rd-Party Backup Support

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

- DSM Upgrade
- Email Notification
- SMS Notification
- Customized User Quota
- DDNS Support
- IPv6 Support
- Resource Monitor
- UPS Management
- Scheduled Power On/Off
- Custom Management UI HTTP/HTTPS Ports

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

- Synology Assistant
- Synology Download Redirector
- Synology Data Replicator
Volume Management:
Share folder level Access Control List (ACL) support; Volume level encryption; Quotas setting; Share management

Disk Management:
Multi-volume management; SMART status monitor

Backup Management:
Local backup (USB device to NAS, NAS to USB device); NAS to NAS backup; Client system backup, Bare Metal Restore over network

Event Management:
Event email notification

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