Ready-to-go NAS for your high-performance life.

Network Attached Storage
Expert Series

WD My Cloud EX2 Ultra, high performance personal cloud storage. Stream media up to 12 TB, 2-bay RAID, automatic backup, expert series WD My Cloud EX2100, high performance personal cloud storage. Stream media up to 12 TB, 2-bay RAID, automatic backup, expert series WD My Cloud EX4100, high performance personal cloud storage. Stream media up to 16 TB, 4-bay RAID, automatic backup, expert series
My Cloud EX2 Ultra My Cloud EX2100 My Cloud EX4100
Number of bays Two-bay Two-bay Four-bay
Ideal for Prosumers
Creative professionals
Prosumers
Creative professionals
Prosumers
Creative professionals
Capacity 0 TB/Diskless, 4 TB, 8 TB, 12 TB, 16 TB 0 TB/Diskless, 4 TB, 8 TB, 12 TB 0 TB/Diskless, 8 TB, 16 TB, 24 TB
Processor Marvel® ARMADA® 1.3 GHz dual-core Marvel® ARMADA® 1.3 GHz dual-core Marvel® ARMADA® 1.6 GHz dual-core
RAM 1 GB 1 GB 2 GB
Gigabit Ethernet Interface / NICs 1X 2X 2X
Power port 1X 1X 2X
USB 3.0 expansion port 2X 1X 2X
One-touch USB 3.0 port   1X (front side) 1X (front side)
Mac and PC compatible
DLNA 1.5 & UPnP certified for media streaming
Free apps for anywhere access My Cloud mobile app
MyCloud.com web access
My Cloud mobile app
MyCloud.com web access
My Cloud mobile app
MyCloud.com web access
Automatic backup software

PC:
WD SmartWare Pro

Mac:
Apple Time Machine compatible

PC:
WD SmartWare Pro

Mac:
Apple Time Machine compatible

PC:
WD SmartWare Pro

Mac:
Apple Time Machine compatible

Secure file sharing with unlimited users
Easy drive install & hot swap
LCD display
Disk management RAID 0,1; JBOD & spanning RAID 0, 1; JBOD & Spanning RAID 0, 1, 5, 10; JBOD & Spanning
iSCSI, volume virtualization
iPv4/iPv6
Active Directory
Integrated serving options File server
FTP server
Backup server
P2P download server
File server
FTP server
Backup server
P2P download server
File server
FTP server
Backup server
P2P download server
Integrated third-party apps