Western Digital

Western Digital WDBWZE0160KBK-NESN 16TB My Cloud EX4100 NAS - 4-Bay

4.0 (61 reviews)

Centralize and protect up to 16TB of data with this powerful 4-bay NAS featuring RAID flexibility and remote access.

$104.00*$1,099.99Save 90%
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Western Digital My Cloud EX4100 is a 4-bay NAS designed to serve as a centralized storage hub for households, creative professionals, and small businesses that need reliable, always-on data access. Pre-populated with 16TB of storage across its four bays, the unit is ready to use out of the box. Its support for RAID 0, 1, 5, 10, JBOD, and spanning configurations gives users the flexibility to prioritize raw capacity, read/write performance, or data redundancy depending on their needs. The Marvell Armada 388 dual-core processor running at 1.6 GHz, paired with 2GB of DDR3 memory, handles everyday file serving, media streaming, and backup tasks capably.

Remote access through the My Cloud platform means your data is reachable from laptops, tablets, and smartphones wherever you have an internet connection — without relying on third-party cloud subscriptions or recurring fees. The 4-bay enclosure supports hot-swappable drive trays, so a failed disk can be replaced without taking the system offline. For users who want a turnkey NAS with ample storage and robust data protection options, the EX4100 16TB offers a solid balance of capacity, features, and ease of use.

Key Features

Centralized storage with anytime, anywhere access

Integrated 1.6 GHz Marvell armadaARMADA 388 dual-core processor and 2GB DDR3 Memory

Twonky DLNA-certified media server and iTunes support

RAID 0, 1, 5, 10 or JBOD and spanning

Integrated backup software for PC users and Time Machine support for Mac users

Specifications

Brand
Western Digital
Model
WDBWZE0160KBK-NESN
Total Capacity
16TB
Number of Bays
4
Type
Network Attached Storage (NAS)
Processor
Marvell Armada 388 1.6 GHz Dual-Core
Memory
2GB DDR3
RAID Support
RAID 0, 1, 5, 10, JBOD, Spanning

Pros & Cons

👍 Pros

  • Four drive bays with multiple RAID options give flexible data protection and storage configurations
  • 2GB DDR3 RAM and dual-core processor handle concurrent file access from multiple users smoothly
  • Remote access capability lets you reach your files from anywhere without a VPN
  • 16TB total capacity out of the box with no additional drives to purchase

👎 Cons

  • The Marvell Armada 388 dual-core processor may struggle with heavy transcoding or simultaneous intensive tasks
  • 2GB of RAM is not upgradeable, which can limit performance with many active users or add-on applications
  • Fan noise can be noticeable in quiet home office environments
  • The My Cloud OS interface has a learning curve for users unfamiliar with NAS administration

Frequently Asked Questions

It supports RAID 0, 1, 5, 10, JBOD, and spanning modes, letting you choose between maximum performance, redundancy, or a balance of both.
Yes, Western Digital's My Cloud platform provides remote access to your stored files from anywhere via web browser or mobile app.
Usable capacity depends on your RAID setup. In RAID 5 (the most common choice for balancing protection and space), you get approximately 12TB of usable storage across the four bays.
Yes, the EX4100's 4-bay design supports hot-swappable drive trays, allowing you to replace a failed drive without powering down the unit.
It runs a Marvell Armada 388 1.6 GHz dual-core processor with 2GB of DDR3 RAM, providing sufficient power for multi-user file serving and media streaming.