NAS Tower R5


The  NAS Tower is a family of storage appliance from Addonics that combines the benefits of RAID storage, Network Attached Storage (NAS) and Direct Attached Storage (DAS) all in box. By directly attaching to system via high speed eSATA connection, large volume of data can be transferred quickly onto the NAS Tower. The same data can be shared over LAN by connecting to the network port on the NAS Tower. Every NAS Tower is equipped with a USB port that allows for attaching as many as fifteen (15) USB drives onto the LAN. The NAS Tower is a great solution for data archiving, video storage or applications that require plenty of storage space or attaching large amount of storage onto network,

The NAS Towerhas also added new powerful features beginning 6/16/2014 via a new firmware release. There are now full disk sharing and existing folder sharing from drives created by other systems. Shares can be applied to both FTP and SMB for different users and with different READ/WRITE privileges. These new features allows quick set up of sharing information on existing drives through LAN and WAN, making it an ideal tool for setting up a private Cloud storage. It is also a great tool for sharing information on existing drive on a private network such as at home or a temporary LAN without any elaborate administrative set up. 


About this model 

This NAS Tower R5, model NT5SNES1G, accommodates up to five 3.5" SATA hard drives. All five drives are configured in a single RAID volume for high performance and reliability. By using RAID 5 configuration, a storage volume up to 16 TB can be created by using five 4TB hard drives. The entire RAID volume can be directly attached to any system via eSATA or used as a Network Attached Storage appliance on any 10/100/1000 network.

Additional USB drives, up to maximum fifteen (15) drive volumes when combines with USB hubs, can be shared over the network by attaching to the USB port on the back of the unit.


Illustraion of connecting the NAS Tower to LAN or to system


NAS Tower R5 fron and back detail view 



  • Install up to five (5) 3.5" SATA hard drives
  • Five Drives can be configured as RAID 0 (Striping), RAID 5 (Parity), Clone Mode (N-Way Mirror) 
  • Built-in RAID accelerator for maximum performance
  • The RAID volume can be attached to
    • Fast Ethernet 10/100/1000 Mbps network to use as a Network Attached Storage
    • Or any system via eSATA port to use as a Direct Attached Storage ( can attach to USB 3.0 port using optional USB 3.0 - eSATA adapter)
  • Drive can be added and removed like VHS cassette with no special tool
  • USB port to support attaching additional USB drives to the network with maximum 15 drive volumes when combined with USB hub

Network Attached Storage

  • Built-In SMB / Samba server for file sharing over LAN
  • Built-in FTP server for file access over the internet
  • Great for setting up a private Cloud storage or quick drive sharing (these new feature requires the latest firmware V98a.5 released on 6/16/2014)¹
    • Support full disk sharing of drive with existing data in SMB and FTP
    • Support selecting existing folders² that are already on the drive for sharing in SMB and FTP
    • Full Disk or Folder sharing can be assigned to authorized users with different READ/WRITE privileges
  • Built-in file formatting utility for XFS and EXT3
  • Support 10/100/1000 Mbps network
  • Maximum data transfer over Gigabit LAN:

      RAID storage USB storage
    read write read write
    XFS up to 85 MB/sec up to 45 MB/sec up to 30 MB/sec up to 30 MB/sec
    EXT3 or EXT4 up to 50 MB/sec up to 35 MB/sec up to 30 MB/sec Up to 30 MB/sec
    NTFS up to 16 MB/sec up to 5 MB/sec up to 16 MB/sec up to 5 MB/sec
    FAT32 up to 18 MB/sec up to 8 MB/sec up to 18 MB/sec up to 8 MB/sec

  • Support XFS, EXT2, EXT3, EXT4, NTFS or FAT32 file system
  • Maximum partition size or drive volume capacity:
    • XFS - 16 TB
    • EXT3 - 16 TB
    • EXT4 - 16 TB
    • NTFS - 9 TB
    • FAT32 - 2TB
  • USB port to support attaching additional USB drives to the network with maximum 15 drive volumes when combined with USB hub
  • Support Up to 15 partitions per RAID volume or drive - giving a maximum 240 drive volumes on the network
  • Storage device with existing data can be attached via USB port (the folder name must be in large CAP to be sharable). See Q&A section on folder and file security setting
  • Maximum user accounts:
    • Samba server - 64,0000*
  • Maximum # of concurrent connections:
    • Samba and FTP server combined - 32,000*
  • Built-in MLDonkey client for direct download to the attached storage device
  • Web GUI administration
  • User management to allow read only or read/write access to folders
  • USB port can be used to power most 2.5" USB hard drives or any low power USB storage device
  • Simple to install

* These are the theoretical limits in the kernel. As # of concurrent connections increase, performance starts to decline depending on the drive access activity from the concurrent connections.


1. These new features are available on the latest firmware V98a.5. Products that are shipped after 6/15/2014 are loaded with the latest firmware. You may upgrade to the new firmware on your unit by going to the Support tab on this page and follow the firmware upgrade procedure.

2. Only folder name containing no space can be shared

Direct Attached Storage

  • Connect to system via eSATA port (connecting cable included)
  • Optional Addonics USB 3.0 - eSATA adapter for connecting to USB 3.0 / 2.0 port
  • Drives are connected to a Port Multiplier that can be configured as RAID0 (Striping), RAID1 (Mirroring), RAID 5 (Parity), RAID 5+S, Large Drive (Concatenation), Clone Mode (N-Way Mirror) or individual drive*
  • RAID setting via software utility under Windows or via dip switches on the back
  • OS independent, can be used on any system
  • RAID diagnostic via LED light

*Individual drive setting is supported when the NAS Tower is directly attached to a system. When connecting to the network, only the drive connecting to port 0 on the Port Mutiplier is available to share over the LAN.

  • On the back of unit
    • One RJ45 connector for 10/100/1000Mbps Ethernet connection
    • One eSATA port 
    • USB 2.0 / 1.1 type B female connector (can supply power up to 1.5A at 5V)
    • AC power socket
    • LED for LAN activity and status
    • RAID setting dip switches
  • On the front of the unit
    • Five Snap-In drive bays
    • LED for power, drive activity, drive error, host connection, RAID rebuilt, LAN activity
    • Power On/Off switch
  • One low noise, high CFM 80 x 80 cooling fan
  • 110/240 AC 320 Watts power supply
  • Dimensions (L x W x H): ~ 7.5 x 16 x 10.4 inches (190 x 419 x 264 mm)
  • Weight: ~11.25 lb ( 5.10 kg)
  • Operation Temperature: 0 °C ~ 60 °C
  • Operation Humidity: 10 ~ 90 %RH
  • Storage Temperature: -20 °C ~ 70 °C
  • Storage Humidity: 5~ 95 %RH


NT5SNES1G - (NAS Tower R5)
Content: NAS Tower R5, one 3-foot eSATA cable (AAESATA100C), utility CD, power cord, user guide
Price: 449.00


AD4U3HE (4-port USB 3.0 hub, external)

4-port external USB 3.0 hub with built-in 3 feet USB 3.0 cable, user guide.

Price: 15.99
AD5EHPMEU3 (External Port Multiplier Ultra)
Package content: External Port Multiplier Ultra main unit, 5V 110/230V power adapter (AAPAC5V), 24" USB power cable (AAUSBPCP24), user guide
Price: 69.00
AAESATA200C (eSATA cable, 200 cm (6 ft.))
Content: 200 cm. eSATA connecting cable with eSATA connector on both ends. Full compliance with eSATA specification. Great for connecting external storage device with eSATA connector to eSATA host controller.
Price: 13.99
NAS Tower R5
Applies to: NT5SNES1G
NAS 4.0, Internal GigaNAS, NAS Tower and Secure NAS Firmware v98a.5
Applies to: NAS40ESU, SN535E1G, SN1035E1G, NT15SNES1G, NT5SNES1G, NAS4RM

New firmware v98a.5 for NAS 4 Family products.

NEW FEATURES: Share an entire drive or an existing folder.

BE SURE TO READ THE REASE NOTE below and FOLLOW the firmware update instructions

DO NOT download the firmware to your computer to do the update. You have to paste the link as instructed in the firmware update page. The NAS adapter must be attached to a LAN that has internet connection to do this update.

Disclaimer: As in any update, problem may appears during the update process that are beyond anyone's control. This may result in your equipment becoming inoperable. Addonics is not liable for any time lose, recovery of data or repairing of the NAS adapter that is out of warranty. 

NAS 4.0 Family Firmware Release Notes v98a.5
Applies to: NAS40ESU, NT5SNES1G, NT15SNES1G, SN535E1G, SN1035E1G, NAS4RM

Release Notes for NAS 4.0 family products.

NAS 4.0, NAS Tower and Secure NAS Firmware v88a
Applies to: NAS40ESU, , SN535E1G, SN1035E1G, NT15SNES1G, NT5SNES1G

New firmware v88a for NAS 4 Family products.

Correct file security issue between SMB and FTP. New files created in the SMB shared folder are now accessible from FTP  or vice versa


NAS 4.0 Family Firmware Release Notes v88a
Applies to: NAS40ESU, NT5SNES1G, NT15SNES1G, SN535E1G, SN1035E1G

Release Notes for NAS 4.0 family products.

NAS 4.0 Search utility
Applies to: NAS40ESU, SN535E1G, SN10355E1G, NT5SNES1G, NT15SNES1G

A Windows utility to search for the IP address of the NAS 4.0 adapter, Addonics NAS Tower and Addonics Secure NAS on LAN.