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Introducing the newest addition to the DataON Product line the DNS-2640 (JBOD) Storage enclosure. The DNS-2640 is the core foundation for a Enterprise-Class, high performance, scalable and reliable 2.5" HDD & SSD storage solution. Designed to meet the needs of continuing data growth, reliability and energy efficiency.  DNS-2640 supports a "Start Small Grow Big" strategy by enabling users to connect DNS-2640 with DataON's Technology Partners HBA's for scalable storage. DataON's expansion enclosure's are managed by the RAID controller or HBA in the primary server, they give IT administrators a cost-effective alternative to quickly respond to your demanding storage requirements. DNS-2640 is the next generation storage enclosure to expand & scale your storage capacity beyond the server & maximize storage density, performance and power efficiency.


  • 2U 24-bay 2.5" 12Gb/s SAS HDDs or SSDs
  • Redundant Hot Swap Drive Bays, Power & Cooling Module

  • LED activity in Each Drive Carrier

  • Single or Dual I/O Controller for Redundant and Max Availability

  • Six SFF-8644 12Gb/s SAS host and expansion connections

  • Supports up to 4,800 MB/sec bandwidth per I/O controller

DNS2640 side

  • High Performance, Flexible & Scalable Storage

  • Fully Tested and Qualified for 12Gb/s SAS RAID & HBAs

  • Point to Point SAS connectivity for Ultimate Performance

  • Daisy Chain Expansion for additional DNS-2640

  • Plug & Play Increase Capacity without shutting down

  • Green Energy Efficient

DNS2640 rear

DNS-2640D Storage Enclosure (EOL)
Form Factor 2U 24-bay 2.5"
Drive Support 12Gb/s & 6Gb/s SAS 3.0 HDD and SSD
Drive Form Factor 2.5” Disk Device
I/O Controller Dual Redundant 12Gb/s SAS 3.0 Controller Module
Host Interface Six 12Gb/s SAS 3.0 SFF-8644 connections per I/O Modul
SAS Expander PMC Sierra PM8055SXP 48-port 12Gb/s SAS expander
Controller Support 12Gb/s SAS RAID & SAS HBA
Server Host Support Supports up to six Server/Host with six dual port host interface
Disk Drive 24 x 12Gb/s or 6Gb/s dual-ported SAS SSD & HDD
Enclosure Cooling Dual Cooling Fan Module built-in Power Module
Power Supply 725W 2+2 Redundant Power Supply
Drive Zoning 1 x 24, 2 x 12 and 3 x 8 Split-bus Zoning via Firmware
LED Indicators *Identify Enclosure               *Power On & Activity              *Drive Fault        
*Identify Drive                         *Drive Rebuild
Enclosure Dimensions 3.5" H X 17.6" W x 19,5 D / 88.9 mmm H x 447 mm W x 495.3 mm D
Weight Enclosure only: 48lbs / 22 kg with 24 drives: 72lbs / 33kg
Failure Notification SCSI Enclosure Services (SES-3) over in-band & LEDs

For more information contact Zstor's sales team via E-Mail: 

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