Secure, Portable, Rugged NAS Server with iSCSI
Available Capacities: 4TB | 8TB | 12TB | 16TB | 24TB
  • Ciphertex CX-4K NAS, iSCSI, IP SAN storage solution
  • AES 256-bit encryption
  • VMware, Citrix and Hyper-V ready
  • Secure, High Performance, Reliable, and User Friendly
  • 10 GigE ready, transfer rate reaching over approx. 450 MB/s and 100,000 IOPS
  • Intel® Core™ i3 3.3GHz Dual-Core processor, DDR3, SATA 6Gb/s, and USB 3.0
  • Integral carry handle secured with PEM® nuts
Download Datasheet » Where to Buy »

The Total Network Storage Solution

Secure, reliable, high performing, rugged and easy to manage storage solutions are crucial to any business. The Ciphertex CX-4K-NAS server, which serves as both IP SAN (iSCSI) and NAS, can be easily utilized in different business and enterprise applications such as content storage, backup center, disaster recovery, file sharing, and virtualization.

High Performance

Equipped with powerful Intel® Core™ i3 3.3GHz Dual-Core processor, 2GB DDR3 RAM and 10 Gigabit network capability, the CX-4K-NAS server is designed with high quality components to deliver fast and smooth data transferring capabilities. The CX-4K-NAS can also be used as a hub for digital data, content, multimedia, video, photo and music. With an exceptional data transfer rate of over approx. 450 MB/s data throughput and 100,000 IOPS, intensive business applications and concurrent tasks can easily be fulfilled.


The Ciphertex CX-4K-NAS offers a variety of security options such as encrypted access, IP filtering, policy-based automatic IP blocking, and more. Complete control of the CX-4K-NAS is offered from user to folder access rights to determine who can access the CX-4K-NAS and what can be accessed. The CX-4K-NAS is filled with security features to stop all unauthorized data access, such as AES 256-bit volume-based encryption. The AES 256-bit encryption prevents sensitive data from unauthorized access and data-breach even if the device or hard drives are stolen.


The CX-4K-NAS is the smallest, lightest and most rugged portable NAS server with 10GbE on the market.
  • 11.20 lbs fully loaded with SSD
  • 16.70 lbs fully loaded with HDD
  • Height: 6.97 inches, Width: 7.09 inches, Depth: 9.25 inches

High Throughput

The 10GbE-ready Ciphertex CX-4K-NAS server includes two built-in Gigabit Ethernet ports, expandable up to two additional Gigabit Ethernet ports, and delivers lightning speed data throughput. The Ciphertex CX-4K- NAS is ideal for both storing and transferring large volume of data.

Get a Handle on Your Data

Not only are Ciphertex products compact and lightweight, they also have built-in carrying handles to make transporting your data that much simpler. Every carry handle is secured with aluminum PEM® fasteners to support heavy loads. With our unique and smart design, you can easily and securely shuttle data around.

Products Built for a Purpose

Ciphertex products have truly been put to the test. Every CX-4K-NAS server is sent to an environmental test laboratory to undergo rigorous inspection, including: vibration tests, shock tests, temperature tests, altitude tests, humidity tests and much more. Ciphertex products are designed and ruggedized to meet military standards. Today, our products are used by the most critical government and commercial institutions in the world to protect confidential data under any circumstance.

Model: CX-4K-NAS
Capacity 8TB 12TB 16TB 24TB
Part Number 4K3000402 4K3000802 4K3000123 4K3000243

Hardware Specifications
CPU Model Intel® Core™ i3, 3.3 GHz
System Memory 2 GB DDR3
Drive Bay(s) 4
Drive Type 3.5" SATA HDD
Max. Capacity 24 TB (4 x 6 TB HDD)
Hot Swappable Drive
External Ports
USB 2.0 Port 3
USB 3.0 Port 2
1 GbE 2 RJ-45
10 GbE 2 (Optional)
Power Consumption
Sleep mode 22.8W
In Operation 40W
Power-off (WOL mode) 1W (with 4 x 2TB HDD installed)
Operating Requirements
Power Supply 100-240V AC. 50/60 Hz, 250 W
Operating Temperature 0° to 40° C
Relative Humidity 5% to 95% RH non-condensing
Wet Bulb 27° C
Size 9.20" x 7.09" x 9.25"
234 mm x 180 mm x 235 mm
Weight (with HDDs) 16.80 lbs (7.62 kg)
Weight (with SSDs) 11.50 lbs (5.22 kg)
Sound Level
Standby mode 28.87 dB
In operation 30.4 dB (With 4 x 1TB hard drives installed)
LED Indicators
HDD 1,2,3,4
Security Kensington lock security slot for theft prevention
Fan 1 x quiet cooling fan (9 cm, 12V DC)
Support USB printer, pen drive, USB hub (front), and USB UPS
Compliance FCC, CE
Warranty 1-year limited warranty with free telephone technical support
Additional 2 and 4 year warranties may be purchased at 10% and 20%, respectively, of system cost.

Software Specifications
System Requirements
Operating System Embedded Linux
Supported Microsoft Windows XP, Vista, Windows 7 (32/64-bit), Windows 8 (32/64-bit), Windows Server 2003/2008 R2/2012
Apple Mac OS X
Linux & UNIX 
Web Browsers Microsoft Internet Explorer 10
Mozilla Firefox 8+
Apple Safari 4+
Google Chrome
File System
Internal HDD EXT3, EXT4
External HDD EXT3, EXT4, NTFS, FAT32, HFS+
Network File Sharing CIFS/SMB (Plus DFS Support), AFP, NFS (v3), FTP, FXP, WebDAV
Backup Solution USB One Touch Backup (Import/Export)
Apple Time Machine Support with Backup Management
Block-level Remote Replication
    - Work as Both Rsync Server & Client
    - Supports Encrypted Replication between NAS Servers
Back up to External Storage Device
Back up to Cloud Storage (Amazon S3) 
Disk Management
Single Disk, JBOD, RAID 0 / 1 / 5 / 5+Hot Spare / 6 / 6+ Hot Spare
Online RAID Capacity Expansion
Online RAID Level Migration
Bad Block Scan
AES 256-bit Volume-based Encryption
RAID Recovery
Bitmap Support
Supports ISO Mount
iSCSI Target Multi-LUNs per Target
Up to 256 LUNs
Supports LUN Mapping
Supports LUN Masking
Supports SPC-3 Persistent Reservation
Supports MPIO & MC/S
Virtual Disk Drive (via iSCSI Initiator) Stack Chaining Master
Max. Virtual Disk Drives: 8 Server Virtualization & Clustering
Supports VMware vSphere (ESX/ESXi 4.0 and above)
Supports Citrix XenServer (5.0/ 5.5)
Supports Windows Server 2008 Hyper-V & Failover Clustering 
IP Filter
Network Access Protection with Auto-blocking
HTTPS Connection
FTP with SSL/TLS (Explicit)
Supports SFTP (admin only)
AES 256-bit Volume-based Encryption
Encrypted Remote Replication (Rysnc over SSH)
Importable SSL Certificate
Instant Alert via Email, SMS, and LCD
Power Management
Wake on LAN
Scheduled Power on/off (Max 15 settings)
Automatic Power on after Power Recovery 
Access Rights Management
Max. User Accounts 4,096
Max. Groups 512
Max. Share Folder 512
Batch Creating Users
Import User List
User Quota Management
Windows AD Support
Domain Users Login via CIFS/SMB, AFP, FTP and Web File Manager
NTLMv2 Authentication
Web Administration
AJAX-based User Interface
HTTP/HTTPS Connections
Alert Notification (Email & SMS)
Smart Fan Control
SNMP (v2 & v3)
UPS Support with SNMP Management (USB)
Supports Network UPS
Resource Monitor
Network Recycle Bin for CIFS/SMB and AFP
Comprehensive Logs (Events & Connection)
Real-time Online User List
Syslog Client
Firmware Update
Backup and Restore System Settings
Restore to Factory Default
Web File Manager
Multimedia Station
Download Station
iTunes Server
Apache Web Server
UPnP Media Server
Database Server (MySQL)
File Server
FTP Server
Web Server
Backup Server
Printer Server
Over 60 applications See more