Secure NAS R5

Discontined and replaced by SN535E1G-S

The Secure NAS is a family of storage appliance from Addonics that combines the benefits of RAID storage, Network Attached Storage (NAS), Direct Attached Storage (DAS) and hardware AES 256-bit encryption all in a box. It is an ideal solution for storing a large volume of sensitive data, for securely transporting a large volume of data between different locations or for any application that requires protection against data theft.

The Secure NAS can be directly attached to any system via high-speed eSATA connection, this allows transferring a large volume of data quickly. The same data in the Secure NAS can be shared over a 1 Gigabit network. The entire RAID volume, including the boot sector and partition table, is encrypted. Data written onto or retrieved from the RAID is encrypted and decrypted on the fly by a high-performance FIPS certified AES 256-bit crypto engine.

The Secure NAS has 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 allow 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 setup.

The encryption is simple to operate. There is no software to run or password to enter. Simply insert a correct cipher key into the unit during the system startup, just like starting a car. Once the unit is powered up, the Cipher key can be removed. If the Secure NAS storage unit is stolen, the RAID volume will not be visible on the network or to any system. If the drives are taken out from the Secure NAS storage and directly attached to any system, the drives will appear as blank. There will be no trace of any recoverable data even examined by recovery software or surface scanning of the drive platter.


About this model

The Secure NAS R5, model SN535E1G, 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, encrypted by a FIPS certified AES 256-bit crypto engine, 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 a maximum of fifteen (15) drive volume when combines with USB hubs, can be shared over the network by attaching to the USB port on the back of the unit.


Illustration of connecting the Secure NAS to LAN or system



Secure NAS R5 detail front and back view



  • Install up to five 3.5" SATA hard drives
  • Five drives can be configured as RAID0 (Striping), RAID 5 (Parity), RAID 5+S, Large Drive or Clone Mode (N-Way Mirror)
  • 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)
  • FIPS certified AES 256-bit hardware encryption for the entire RAID volume
  • 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 (Please note the USB drives will not be encrypted)

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 (this 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

* 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


  • AES 256-bit encryption - the highest level of encryption standard
  • FIPS 140-2 certified Crypto Module listed in NIST
  • Full disk encryption. No traceable data when the encrypted drive is connected to any system
  • No training required. Encryption/decryption is activated via a hardware key , just like using a regular key to open a door.
  • High performance - up to 150 MB/sec
  • OS independent - can be used on any system

Note: USB Drives attached via the USB port on the back of Secure NAS are not encrypted

  • Cipher key 

    There is no back door for the Secure NAS if the Cipher key is lost or stolen. To ensure there is a spare key, every Secure NAS comes with one pair of Cipher keys. One of these keys should be kept in a safe, secure location and, if needed, can be sent back to Addonics for duplicating additional keys. If one of the two keys is lost, be sure to make a back up of all the data stored inside the Secure NAS prior to sending your last Cipher key to Addonics. Addonics is not responsible for keys lost in the mail or the retrieval of the data inside the Secure NAS. Customers may also order additional Cipher keys with the same key code when ordering the Secure NAS. 

    The AES 256-bit Cipher key used for the Secure NAS is the same Cipher key used in the Addonics Diamond Cipher drive kit, Ruby Cipher drive kit or the CipherChain. As a result, the same Cipher key can operate the storage device that has been encrypted by either the CipherChain, Diamond Cipher, or Ruby Cipher drive kit. The Cipher keys can also be reprogrammed with other codes by using the optional key management system or by sending the keys to Addonics for the reprogramming service (at no charge). 

  • Optional Cipher key management system - For organization with large deployment, you may consider managing your own keys by investing into a Addonics Cipher key duplicating system.

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 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 secure NAS is directly attached to a system. When attached to the network, only the drive connecting to be port 0 on the Port Mutiplier is available to share over the LAN.

Major components that make up this model:

Storage Tower V (STV), 5-port HPM- XA enclosure version (AD5HPMSXA), 1 Snap-In Disk Array (AESN5DA35-A), One CipherChain kit for 3.5" bay with a pair of Cipher keys (CCM35K1), Internal GigaNAS adapter (NAS4RM), 3 feet eSATA cable (AAESATA100C), power cord, user guide

Optional USB 3.0 - eSATA adapter (ADU3ESA) for USB 3.0/2.0 connection

  • 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
    • Cipher key socket 
    • LED for power, drive activity, drive error, host connection, RAID rebuilt, LAN activity, encryption activity, Cipher status
    • 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



AAENKEY256 (1 AES 256-bit Cipher key)
Content: 1 piece of AES-256-bit encryption key
Price: 9.00
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
Secure NAS R5
Applies to: SN535E1G
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.