5big NAS Pro

Was this content helpful?

Note: NAS OS 4, the operating system used for our NAS devices, will be officially End-of-Life effective July 18th, 2022. This change will not affect the data on your NAS device, but NAS OS will no longer be receiving any updates, including security updates.
For additional information, please see our support article here.

Note: Effective May 15th, 2021, the Seagate Access and MyNAS services for NAS OS 4 devices will no longer be available, including their remote access functionality, Sdrive and mobile app integrations. This change will not affect the data on your NAS device. For additional information about other available options for remotely accessing your NAS OS 4 device, please see our support article here.


Model Data Sheet User Manual
5big NAS Pro

3-year limited warranty

5big NAS Pro

3-year limited warranty

5big NAS Pro

3-year limited warranty

5big NAS Pro

3-year limited warranty

Interface 2 x Intel Gigabit Ethernet 10/100/1000 Base-TX
Dual link aggregation IEEE 802.3ad
Operating System LaCie NAS OS 4.x
Processor/RAM Dual-core 2.13GHz Intel® 64-bit Atom™ processor
File Access Sdrive™: Single interface for local and remote access with file system integration
Compatible with PC, Mac®, iOS®, and Android®
Network Protocols File Server: SMB, AFP, FTP, SFTP, NFS*
Web access: HTTP, HTTPS
Others: Apple® Bonjour™, BitTorrent™, NTP, 802.3ad for link aggregation and failover, iSCSI, DHCP, APIPA
Expansion Ports 2 x USB 3.0
2 x USB 2.0
1 x Standard VGA-compatible 15-pin
Burst Transfer Rate Read: up to 210 MB/s (RAID 0); 194 MB/s (RAID 5)**
Write: up to 150 MB/s (RAID 0); 110 MB/s (RAID 5)
RAID Modes Standard RAID modes: 0***, 1▴, 5, 5+Spare, 6
SimplyRAID for automatic RAID migration, expansion, and support for mixed capacities
Multi-volume support
Backup Solutions NAS to Cloud: Box® or Amazon® S3®
PC to NAS: using client software (Time Machine™, Windows® Backup, etc.)
NAS to DAS: scheduled, automatic, and restore
NAS to NAS: scheduled, encrypted, compressed, and automatic to local or remote NAS▴▴
Special Features Print server▴▴▴
Download (torrent) machine
Time Machine compatibility
Active Directory® support
Kensington™ lock compatible
Administration Rescue utility for NAS OS setup and repair
Direct access to NAS using Sdrive
User-friendly management interface (Dashboard)
Monitoring SNMP integration
Fan, CPU, and RAM events
SMART hard-disk diagnostics
Multimedia UPnP A/V media adapter compatible
Photo browser and audio streaming through web interface iTunes™ (DAAP) server
Power Supply 100-240Vca; 47-63Hz
Power Consumption Off: 1.9W; Idle: 56.5W; Full Load: 71W; Disk Hibernation: 1.9W
Environment & Power Energy-efficient process with Level V power supply
Recyclable: Aluminum, ROHS compliant
Automatic standby mode; scheduled On/Off; Wake on LAN
Low noise emission (25 dB) †
Uninterrupted Power Supply (UPS) support ††
Dimensions 173 x 220 x 196 mm / 6.8 x 8.6 x 7.7 in.
Weight Without disks: 4.7 kg / 10.4 lbs.
With five disks: 7.6 kg / 16.8 lbs.
Recommend Number of Simultaneous Users 50
Cooling Solid aluminum casing for superior heat dissipation
High-performance Noctua® magnetic levitation fan
Supported Languages English, Danska, Deutsch, Español, Français, Italiano, 日本, Nederlands, Svenska, Português, 中文
Software Sdrive
Backup software:
PC: Genie® Backup Manager Pro™ (3 licenses)
Mac: Intego® Backup Manager Pro™ (3 licenses)
System Requirements Latest version of Windows XP, Windows Vista®, Windows 7, Windows 8 / Mac OS X® 10.5 or greater
Web browsers: Internet Explorer™ 8/9/10, or the latest version of Firefox™ Safari™, or Chrome
Computer with an Ethernet network adapter
Ethernet switch or router 10/100/1 GB
Box Content LaCie 5big NAS Pro
Ethernet cable
External power supply
USB key for install and recovery
Utilities CD-ROM with software
Quick Install Guide
Drawer key
Cable management clip
Comments * Without authentication.
** Tests performed using the Intel NASPT tool and dual LAN. Read test: 4 HD video playback; Write test: HD video record. PC used: Core2 Duo 2 GHz, 1 GB RAM / RealTek© network card / Crossed cable Windows 7 Ultimate 32 bits. Performance depends on network traffic, file size, and external factors, and may vary from one product to another.
*** Hot swapping is not supported in RAID 0.
▴ RAID 1 is available only if there are two total disks installed.
▴▴ NAS must be rsync-compatible. For LaCie NAS, both client and server must be running NAS OS 2.2 or later.
▴▴▴ Please refer to www.openprinting.org/printers/ for a list of supported printers.
† These measurements have been made under normal conditions, one meter/three feet from the front of the product. It may vary with conditions and product configuration.
†† For a list of supported UPSs, please see: www.lacie.com/5bigNAS-UPS

When referring to drive capacity, one gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one thousand billion bytes. Your computer’s operating system may use a different standard of measurement and report a lower capacity. In addition, some of the listed capacity is used for formatting and other functions and will not be available for data storage.