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WD My Cloud EX4100 4-Bay 2x 4TB NAS - Marvell 1.6GHz Dual-Core CPU, 2GB RAM - 4x 3.5" hard drive bays, hot swap capable - 2x Gigabit (10/100/1000) Ethernet - 3x USB 3.0 ports - 3 Year Warranty - WDBWZE0080KBK


Save all your valuable photos, videos, music and files on this ready-to-go, high-performance NAS solution for secure access to them anytime, from anywhere. Protect your content with multiple backup options, customize your NAS with a full suite of apps and enjoy peace of mind knowing that we've put our best in it, so you can put your best on it.

Centralize your media and content in one safe, organized place

Whether you're a creative hobbyist, creative professional or have an impressive media collection, you will undoubtedly have loads of digital content to store. With My Cloud Expert Series NAS, you can easily centralize and protect your valuable content from all the PC and Mac computers on your network. Plus, access it anytime, from anywhere with tablets and smartphones.

Get power that keeps up with your passion

Powered by a strong Marvell® ARMADA® 388 1.6 GHz dual-core processor, My Cloud EX4100 gives you ultra-fast transfer speeds of 116 MB/s upload and 116 MB/s download to keep up with your high-performance needs. Now you can upload more content simultaneously, stream your HD media more smoothly, and enjoy your creative life with ease.

Stream like a pro

With the built-in Twonky DLNA-certified media server, you can seamlessly stream all your HD videos, photos and music stored on your My Cloud Expert Series NAS to media players, Smart TVs, gaming consoles and other DLNA-certified devices on your network. It's an easy way to enjoy your media collection on the biggest screen in your house.

Safeguard your content with comprehensive data protection

My Cloud EX4100 keeps your irreplaceable photos, videos and files safe with multiple data protection options to secure your content from unexpected loss. Protect all the PC and Mac computers on your network using local, remote or cloud backup. Multiple RAID configurations and volume encryption add even more protection and security for all your files.

Be up and running in minutes

My Cloud EX4100 comes preconfigured to get you set up and on your way without any hassle. The intuitive dashboard guides you through the process of setting up users and shares, customizing system features and monitoring your storage. And with a toolless and trayless drive bay design, drive installation and hot swap is effortless.

Built-in reliability for added peace of mind

My Cloud Expert Series pre-configured NAS come populated with WD Red NAS hard drives. Ultra-reliable and purposely built for NAS systems, WD Red drives improve performance and thrive in 24x7 environments.

WD's exclusive NASware™ technology further optimizes WD Red for the NAS environment. From vibration compensation, optimized power usage and protecting your content in the event of a power loss or disruption, the firmware is designed to give you improved reliability and system performance.

Get enhanced media streaming and network redundancy


Dual Gigabit Ethernet ports for link aggregation enhances network performance giving you the best possible HD media streaming experience. It also provides for network redundancy should one of your network connections fail.


CPU Marvell® ARMADA® 388 1.6 GHz dual-core
Dimensions Length 9.13 in (232.00 mm)
Width 6.69 in (170.00 mm)
Height 7.56 in (192.00 mm)
eSATA Port N/A
File System EXT4 for internal HDD

Support following formats for externally attached USB drives:
NTFS (read and write capability)
HFS+J (case sensitive)
Linux EXT2, EXT3, EXT4
Networking ports Gigabit Ethernet x2
Power Input voltage: 100V to 240V AC
Input frequency: 50 to 60 Hz
Output voltage: 19V DC, up to 6.32A
Internal Hard Disks 4x 3.5 inch hard drive bays, hot swap capable, tray-less design
(2x 4TB HDD Included)
Max. Internal Capacity  
LCD Screen 2 lines of 16 characters for status and alerts
Storage Management RAID: JBOD, spanning, 0/1/5 10/5 + hot spare support
RAID migration:
-RAID 1 to RAID 5
Hot swapping
Hot spare (in four disk mode)
Disk roaming
Array roaming
Barcode # 718037833736
Brand Western Digital
Shipping Weight 7.6000kg
Shipping Width 0.360m
Shipping Height 0.310m
Shipping Length 0.465m
Shipping Cubic 0.051894000m3
Manufacturer Warranty
3 Years Limited Warranty
Manufacturer Contact Info 
1800 429 861

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WD My Cloud EX4100 4-Bay 2x 4TB NAS - Marvell 1.6GHz Dual-Core CPU, 2GB RAM

Model# WDBWZE0080KBK


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