QNAP

QNAP ES1686DC-2123IT64GUS 16-Bay Dual Controller NAS

Name: QNAP ES1686DC-2123IT64GUS 16-Bay Dual Controller NAS
Brand: QNAP
SKU: ES1686DC-2123IT64GUS

77lb

Unleash Enterprise-Level Storage with Redundancy Introducing the QNAP ES1686DC-2123IT64GUS, a 16-bay active-active dual controller NAS, engineered for mission-critical applications requiring high availability and uncompromising data integrity. This robust system features redundant power supplies ...

$12,909.00*

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*Price sourced from Amazon.com. Last updated:Aug 28, 2026.Price and availability are subject to change — details.

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Overview

Unleash Enterprise-Level Storage with Redundancy

Introducing the QNAP ES1686DC-2123IT64GUS, a 16-bay active-active dual controller NAS, engineered for mission-critical applications requiring high availability and uncompromising data integrity. This robust system features redundant power supplies and dual controllers to ensure continuous operation even in the event of hardware failure. Benefit from advanced storage pool options, including RAID 0/1/5/6/10/50/60/RAID TP/Triple Mirror, providing versatile data protection and performance configurations.

Specifications:

Processor: Intel Xeon D-2123IT 2.2GHz 4-Core
Memory: 32GB (4 x 8GB, Max 512GB) per controller
Write Cache: 64GB per controller
M.2 Slots: 2 x M.2 Gen.3 x4 2280
RAID Support: RAID 0/1/5/6/10/50/60/RAID TP/Triple Mirror
Power Supply: Redundant PSU
Accessories: Rail Kit Included

Key Features

Weight: 77lb

Specifications

Brand

QNAP

Model

ES1686DC-2123IT64GUS

Bays

16-Bay

Controller Configuration

Dual Controller

Weight

77lb

Frequently Asked Questions

What is the benefit of a dual controller NAS like the QNAP ES1686DC?

A dual controller design provides redundancy, meaning if one controller fails, the other can take over, significantly improving uptime and data availability for critical business operations.

How many drive bays does this QNAP NAS have?

The QNAP ES1686DC-2123IT64GUS comes with 16 drive bays, allowing for extensive storage capacity and flexible RAID configurations.

Is the QNAP ES1686DC designed for home or enterprise use?

With its dual controller and high bay count, this NAS is primarily designed for enterprise-level environments that require robust, high-availability storage solutions.

What is the weight of the QNAP ES1686DC-2123IT64GUS?

This QNAP NAS unit has a stated weight of 77 pounds, indicating a substantial and sturdy piece of hardware.

Does this NAS come with hard drives included?

The product description does not specify that hard drives are included; typically, enterprise-grade NAS units require separate purchase and installation of drives.

Strengths & Trade-offs

👍 Pros

Features a dual controller design, which can significantly enhance reliability and uptime by providing redundancy.
Offers a substantial 16-bay capacity, allowing for large-scale storage configurations and expansion.
Designed as a Network Attached Storage (NAS) system, providing centralized and accessible data storage over a network.
The QNAP brand is known for offering advanced features and software capabilities in its NAS products.
Suitable for enterprise environments requiring robust storage solutions with high data integrity and performance.

👎 Cons

The specific processor model (2123IT) is mentioned without further details on its core count or clock speed.
The amount of installed RAM (64G) is listed, but the type (DDR4, DDR5) or speed is not specified.
The product weight of 77lb indicates a very heavy unit, which might complicate installation and movement.
Hard drives are typically not included with NAS units of this caliber, requiring additional purchase and configuration.
Detailed specifications on networking interfaces, such as Ethernet port speeds or types, are not provided.