QNAP ES1686dc-2145NT-128G-US Enterprise ZFS NAS with 64GB RAM

Brand: QNAP
Part Number: ES1686dc-2145NT-128G-US
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  • QNAP ES1686dc-2145NT-128G-US Enterprise ZFS NAS with 64GB RAM
  • QNAP ES1686dc-2145NT-128G-US Enterprise ZFS NAS with 64GB RAM
  • QNAP ES1686dc-2145NT-128G-US Enterprise ZFS NAS with 64GB RAM
  • QNAP ES1686dc-2145NT-128G-US Enterprise ZFS NAS with 64GB RAM
  • QNAP ES1686dc-2145NT-128G-US Enterprise ZFS NAS with 64GB RAM
  • QNAP ES1686dc-2145NT-128G-US Enterprise ZFS NAS with 64GB RAM
  • QNAP ES1686dc-2145NT-128G-US Enterprise ZFS NAS with 64GB RAM
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QNAP ES1686dc-2145NT-128G-US Enterprise ZFS NAS with 64GB RAM

Delivering enterprise high availability, the ES1686dc Enterprise ZFS NAS features Intel® Xeon® D processors, dual active controllers, up to 512 GB DDR4 ECC memory, SAS 12Gb/s, and ZFS that supports logical volume management. The ES1686dc runs the latest QES 2.1.0 operating system that supports near-limitless snapshots, SnapSync, block-level data deduplication, and inline data compression. Whether being used as a mission-critical file server, virtualization server, VDI, medium-sized data center, video streaming, surveillance storage, and efficient file backup & recovery, the ES1686dc helps your business to achieve service-level agreements for performance and uptime.

Key Features:

  • Intel® Xeon® D-2145NT 8-core 1.90GHz processor (burst up to 3.0GHz) per controller
  • 64 GB RDIMM DDR4 ECC (4 x 16 GB) per controller
  • Maximum Memory: 512 GB (8 x 64GB)
  • Drive Bay: 16 x 3.5-inch
  • M.2 SSD Slot: 2 x M.2 port
  • Form Factor: 3U Rack Mount
  • Intel Xeon D dual active-active controllers provide supreme uptime and redundancy to ensure high availability.
  • Battery-protected DRAM write to cache data protection and Flash read acceleration provides industry-leading random access performance.
  • Two M.2 SSD slots allow for implementing SSD cache acceleration.
  • Four 10GbE SFP+ ports accelerate virtualization, large file sharing, and intensive data transfer.
  • Near-limitless snapshots and SnapSync for snapshot remote backup assist businesses to resume essential services in the shortest time.
  • Supports VMware vSphere 6.5, Windows Server 2016 and Citrix XenServer 7.0 for storage virtualization. Compatible with OpenStack cloud environments.
Packing List:
  • ES1686dc Storage System
  • 6 x Ethernet Cables (1GbE)
  • 2 x Power Cords
  • 64 x Flat Head Screws (for 3.5" HDD)
  • 64 x Flat Head Screws (for 2.5" HDD)
  • E02 series (Chassis) rail kit, max. load 57kg: RAIL-E02
  • 1 x Console Cable (RJ11 to RS-232)
  • Quick Installation Guide (QIG)
Intel® Xeon® D dual-controller ensures high availability and failure-resistant service

Powered by two Intel® Xeon® D processors, the ES1686dc features a dual active-active controller architecture that provides failover/failback operations as the standby controller can quickly take over if one controller breaks down. Redundant hot-swappable power supplies and cooling fans are also included to provide businesses with near-zero downtime high availability. The ES1686dc connects to the JBOD enclosure (EJ1600 v2) via the dual-path mini-SAS design to sustain continuous operations even if a JBOD cable is disconnected. Designed around redundancy, the ES1686dc is the best realization of reliable enterprise storage for uninterrupted mission-critical enterprise tasks and productivity.

PCIe expansion for 40GbE high-speed networks

The ES1686dc provides two PCIe Gen3 x8 slots connected to the CPU, allowing you to install lightning-fast 10GbE/40GbE network cards to boost virtualization, media streaming, and other bandwidth-demanding applications. Installing Mellanox® Smart NICs further adds support for iSER for improved VMware® virtualization performance. You can also install a QM2 expansion card (QM2-4P-384) to add four additional M.2 2280 PCIe NVMe SSD slots to burst reading performance with SSD caching, or a SAS expansion card (SAS-12G2E) for connecting up to seven 16-bay EJ1600 v2 expansion enclosures to seamlessly expand the potential storage capacity over 1PB, with unprecedented performance of up to 48Gbps per host connection.

Leverage the 6Gbps SAS to SATA drive adapter

While SATA 6Gb/s SSDs provide high-performance yet affordable storage, the lack of dual-port support makes them unsuitable for dual-controller environments. The QDA-SA adapter is designed for QNAP Enterprise ZFS NAS, and allows the use of a SATA 6Gb/s drive in a 3.5-inch SAS drive bay - providing the ability to expand storage capacity by using cost-effective SATA drives. By installing a SATA drive with the QDA-SA into the dual-controller ES1686dc, the SATA drive can share these SAS dual-port advantages to ensure a high-availability, fault-tolerant enterprise storage environment.

QES 2.1.0: ZFS-based, and optimized for all flash performance

The ES1686dc features the QES (QNAP Enterprise Storage) 2.1.0 operating system, which is based on the simple and efficient FreeBSD kernel and the ZFS file system that has been proven through years of experience to be most suitable for high-end enterprise applications. Not only does QES 2.1.0 provide reliable data protection, recovery, and business-class features, it is optimized for flash storage and is capable of driving outstanding performance for all-flash storage arrays to accelerate mission-critical services and eliminate challenges in VDI environments. QES 2.1.0 also comes with Quality of Service (QoS) capabilities that help ensure consistent primary storage performance in multi-application environments. Continuing the same user experience with the intuitive QTS operating system, QES provides business users with an easy learning curve for quick implementation within IT infrastructures.

Self-Healing ensures data integrity and reliability

Designed with a focus on data integrity, a fundamental aspect of storage security and reliability, the QES-based ES1686dc uses its end-to-end checksums to detect and correct silent data corruption caused by hardware defects, bugs in firmware or metadata errors. If integrity violations are detected, QES automatically repairs the damage using data from the other mirror before the data is passed to applications.


CPUIntel® Xeon® D-2145NT 8-core 1.90 GHz processor (burst up to 3.0 GHz) per controller
CPU Architecture64-bit x86
Floating Point Unit
Encryption Engine (AES-NI)
System Memory64 GB RDIMM DDR4 ECC (4 x 16 GB) per controller
Maximum Memory512 GB (8 x 64GB)
Memory Slot8 x DDR4 RDIMM/LRDIMM
IMPORTANT: You can only use one type of dual in-line memory module (DIMM) at a time. Do not use registered DIMM (RDIMM) with load-reduction DIMM (LRDIMM) memory.
Flash Memory4GB (Dual boot OS protection)
Drive Bay16 x 3.5-inch
SAS 12Gb/s, backward-compatible to SAS 6Gb/s
Drive Compatibility3.5-inch bays:
3.5-inch SAS/SATA hard disk drives
2.5-inch SAS/SATA hard disk drives
2.5-inch SAS/SATA solid state drives
M.2 SSD Slot2 x M.2 port
Supports SATA 6Gb/s or NVMe Gen3 x4 2280
SSD Cache Acceleration Support
Cache for Copy To Flash (C2F)1 per each controller (64GB)
Gigabit Ethernet Port (RJ45)3 for each controller (one for remote management)
10 Gigabit Ethernet Port4 x 10G SFP+ for each controller
Jumbo Frame
PCIe Slot2
Slot 1: PCIe Gen3 x8 (CPU)
Slot 2: PCIe Gen3 x8 (CPU)
USB 3.0 port2 per each controller
Form Factor3U Rack Mount
LED IndicatorsSystem Power LED (Green): on/off
System Status (Green/ Orange): in operation, system errors, low power, degraded RAID mode, memory failure, fan/power supply failure, system/disk temperature too high, storage pool reaching threshold value, system performing take-over, power supply unit unplugged
LCD Status Display (Two-digit number): Status of JBOD connection
ButtonsPower, Reset
Dimensions (HxWxD)132 × 483.05 × 630.62 mm
Weight (Net)25.83 kg
Weight (Gross)32.69 kg
Operating temperature0 - 40 °C (32°F - 104°F)
Relative Humidity5~95% RH non-condensing, wet bulb: 27˚C (80.6˚F)
Power Supply UnitRedundant/ Hot Swap Power Vin:90~264VAC;770W
Power Consumption: Operating Mode, Typical500.87 W
FanHot-swappable fan module (60*60*38mm; 16000RPM/12v/2.8A x 3)
Sound Level55.8 db(A)
Safety StandardFCC Class A (USA only)
CE Mark ( EN55022 Class A, EN55024)
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Additional Information

Accessory Type:
NAS (Network Attached Storage)
Processor (CPU):
Intel Xeon D-2145NT 8-core 1.90GHz
Processor Core:
Octa-core (8-core)
Processor Speed:
RAM Speed:
3200 mhz
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