QNAP ES1640dc-E596G 16-Bay Active-Active dual controller NAS

Dual active controllers

QES operating system

CPU : ntel Xeon 6-core Processor E5-2420 v2


Harddisk Tray : 16-Bay 

Max. Capacity : 128TB 

More details

396,260.00 ฿ tax excl.

QNAP ES1640dc

Active-Active Dual Controller NAS 


The ES1640dc is whole-new product line developed by QNAP for mission-critical tasks and intensive virtualization applications. With Intel® Xeon® E5 processors, dual active controllers, ZFS, HPE Helion compatibility and fully supporting virtualization environments, the ES1640dc delivers “real business-class” cloud computing data storage. The ES1640dc features the brand-new QES operating system that allows almost limitless snapshots, block-level data deduplication, and thin provisioning with reclaim, assisting businesses in building the most cost-efficient VDI platform and storage for critical data.



QNAP ES1640dc is shipped without Hard Disk with

5 years Advanced Placement warranty


Hardware Specification

QNAP TDS-16489U-SB3 16-Bay Dual Processors NAS


Intel Xeon 6-core Processor E5-2420 v2 (15M Cache, 2.20GHz)

Memory  32GB for main memory and 16GB write cache per controller. 
Hard Disk Drive 

16 x 3.5"/2.5" SAS 6Gbps hard drive

(compatible with SAS 12Gbps hard drive),

2.5" SAS/SATA SSD (SAS-to-SATA Interposer is required.)

The system is shipped without Hard Disk

Hard Drive Interface SAS 6Gb/s 
LAN Port 

2 x RJ45 10Gbps LAN Port, Intel X540-BT2 for each controller

PCIe Slot 

PCIe Slot x8 (Gen3 x8): reserved for 40GbE or 10GbE LAN card

PCIe Slot x4 (Gen2 x4): reserved for dual path Mini-SAS


2 x USB 3.0/2.0 port

Form Factor 

3U, Rackmount

Power Supply 770 W (Redundancy for fault tolerance) 
Dimensions 618(D) x 446.2(W) x 132(H) mm
Weight  Net weight (NAS only): 26.75 kg 



Software Specification : 

QNAP ES1640dc Active-Active Dual Controller NAS

Operating System 

QES 1.1 (based on FreeBSD)

Supported Clients 

Windows 7 (32/64-bit), Windows 8 (32/64-bit), 

Windows 10 (32/64-bit), Windows Server 2008 R2/2012/2012R2 

Apple Mac OS X 

Linux & UNIX

File System 


High Availability

Active-Active/Active-Standby dual controller for NAS

Active-Active dual controller for JBOD expander

Automatically hardware error detection and failover

Automatically failback when hardware recovered

Data port network failover

Management port network failover

Near zero downtime high availability

Dual SAS link loop

MPIO and ALUA for iSCSI high availability

Link aggregation for network high availability

Support SMB3 Continuous Availability (CA)


TCP/IP (IPv4 & IPv6)

10 Gigabit NICs with jumbo frame

  • LACP,
  • Load Balance,
  • Failover,
  • Round Robin 

Service binding based on network interfaces 

Proxy client 

DHCP client

Protocols :

  • CIFS/SMB2/SMB3, NFS v3/NFS v4,

Bonjour Discovery 

Backup Station 

Remote replication server over Rsync

Remote replication server over Snapsync

Scheduled backup

Snapshot support for Rsync

Compression, Dedup, and transfer rate limitation over Snapsync

Desktop backup with QNAP NetBak Replicator for Windows

Third party backup software support:

  • Veeam backup & replication,
  • Acronis True Image,
  • Arcserve backup,
  • emc retrospect,
  • Symantec Backup Exec, etc.
Storage Management

Storage space utilization monitoring

Storage pool with RAID 0, 1, 5, 6, 10, 50, 60, RAID TP, triple Mirror

Global hot spare

SSD read cache

NVRAM write cache (BBU-protected)

Scheduled Backup Battery Unit (BBU) learning

Supports share folder/LUN with thin provisioning

Supports LUN with instant provisioning

Supports share folder quota

Supports space reclaim

Supports snapshots

  • Supports Shared Folder/LUN snapshot
  • Snapshot manager
  • Snapshot clone
  • Snapshot agent for Windows VSS and VMware

Support inline deduplication for Shared Folder/LUN

Support inline compression for Shared Folder/LUN

Support inline encryption for Shared Folder/LUN

Support WORM (Write Once Read Many) for Shared Folder

Online LUN expansion

Online Share Folder quota expansion

Online storage pool expansion

Hard drive S.M.A.R.T.

SMART predict data migration

Time-Limited Error Recovery (TLER)

Storage expansion via QNAP EJ-1600 series expansion units

JBOD ID Reinitialized

JBOD enclosure roaming

RAID recovery

Checksum for end-to-end data integrity

Silence error detection and self-healing

Pool scrub for data verification


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