WD_My Cloud_EX2_52

WD My Cloud EX2 Dual-Bay NAS Drive


With WD My Cloud EX2, choose a populated system that works out of the box, featuring WD Red hard drives. Or, build your own NAS with our diskless...


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  • Gigabit Ethernet
  • Power supply (DC in)
  • USB 3.0 expansion port x 2
Drive bays2 x 3.5 inch hard drive bays, hot swap capable, trayless design
Internal hard drivesWD Red NAS hard drives
(Included in 4 TB, 6 TB and 8 TB populated systems only)
Processor1.2 GHz
Memory512 MB DDR3
Fan35 mm x 35 mm, 9500 RPM
System requirements
  • Windows® 8.1 or earlier, Windows 7, Windows Vista® or Windows XP (SP 3) operating systems
  • Mac OS® X Mavericks, Mountain Lion™, Lion or Snow Leopard® operating systems
  • DLNA/UPnP devices for streaming
  • Router with Internet connection
Supported web browsers
  • Internet Explorer® 8 or higher
  • Safari® 6 or higher
  • Firefox® 21 or higher Google
  • Chrome™ 27 and later on supported Windows and Mac OS platforms
Network protocols
  • DHCP client or static IP
  • NTP client
  • Dynamic DNS (DDNS)
  • Apple Bonjour® and Windows Rally™
  • Jumbo frame support VLAN (802.1Q)
  • UPnP port forwarding
  • iPv4/iPv6
  • iSCSI
  • SSH
Network file servicesOS Supports:

  • Windows XP Home/ Pro (SP 3)
  • Windows Vista/7/8 (all versions)
  • Mac OS X Mavericks, Mountain Lion, Lion and Snow Leopard
  • CIFS/SMB for Windows, Mac OS X and Linux
  • NFSv3 for Linux and UNIX
  • AFP for Mac OS X
  • Microsoft® Distributed File System (DFS)
  • WebDAV Server
  • Active directory support for Windows server 2003/ 2008/ 2012
  • Volume encryption (256 bit AES)
File systemEXT4 for internal HDDSupports the following formats for externally attached USB drives:

  • FAT/FAT32
  • NTFS (read and write capability)
  • HFS+J (case sensitive)
  • Linux EXT2, EXT3, EXT4
FTP server
  • Support port setting
  • Set port range of passive FTP
  • Option to report external IP in PASV mode
  • Client language selection
  • Anonymous FTP
  • Secure FTP support Support
  • File eXchange Protocol (FXP)
  • FTP bandwidth restriction (upstream/downstream)
  • IP address block (block access from undesired IP address)
Download management
  • HTTP downloads from a URL to a user specified folder on the NAS
  • FTP downloads of files or folders from an FTP server to another files/folders on the NAS
  • P2P torrent download manager
Disk managementRAID 0/1; JBOD; spanning
RAID migration:
• JBOD to RAID 1 Hot swapping (RAID 1)
Disk roaming
Array roaming
Power management
  • Drive spin-up/down (including attached WD USB drives)
  • Automatic power recovery
  • Scheduled power on/off
  • Graceful shutdown on UPS low battery
  • Fan control
  • Network UPS
  • Wake On LAN
Remote access
  • My Cloud and WD Photos™ mobile apps
  • My Cloud desktop app
  • Web access
User/Group managementMax no. of users: 512 for Samba, 800 for ADS
Max no. of user groups: 64 for Samba, 200 for ADS
Max no. of network shares:128
Supports up to 10 concurrent CIFS connections
User/group assignment for network sharing/FTP
Quotas for groups or users
Assignment of users to multiple groups
Batch assignment of users to groups
Batch user creation
Importing users (CSV delimited format)
Backup managementRemote backups: Backup to a My Cloud EX2 or My Cloud EX4 locally or remotely
Apple Time Machine support
Backup internal files or folders of the device to other files/folders on the NAS
Cloud-based backup services
• Amazon S3 (http://aws.amazon.com/s3/)
• ElephantDrive(http://home.elephantdrive.com/welcome/wdc/)
Disk sync management for the attached USB ports
System managementAlert notifications
• Event UI messages
• UI alerts (with message acknowledgment required)
• Email notices
• QuickView pop-up messages Network recycle bin
• Supports Windows CIFS
• Supports Apple AFP System/FTP log (syslog client)
HTTP/S (web) administration interface (HTTP server)
Firmware upgrade
Configuration backup and restore SNMPv2 System information
• CPU percentage
• RAM usage
• Network performance
USB portSupports UPS monitoring
Supports external storage device
Supports MTP (Media Transfer Protocol) and PTP
(Picture Transfer Protocol)
Media streaming
  • UPnP AV media server (Twonky v7.2)
  • DLNA 1.5 certification
  • Supports WD TV® Live™, Xbox® 360, PlayStation® 3, Windows 8, connected TVs, Blu-ray® players & digital picture frames
  • iTunes support
Add-on support
  • aMule – peer-to-peer file sharing application Transmission
  • BitTorrent client
  • Icecast – media streaming app
  • phpBB – Internet forum application
  • Joomla! – content management system
  • SqueezeCenter – streaming audio server
  • phpMyAdmin – My SQL administration tool
  • WordPress – blogging tool and content management system
  • NZBGet – NZB file download management software Git – revision control and source code management system

For the most recent apps available, visit wd.com/ex2

iSCSIiSCSI target
• CHAP authentication
• iSNS (Internet Storage Name Service )
• Up to 64 iSCSI targets Volume virtualization: NAS can be configured as an iSCSI initiator and capable of mapping any iSCSI target of the other device to be one virtual volume.
• Virtual disk drive (via iSCSI initiator)
• Max number of virtual disk drives supported is eight (8)
Power supply
  • AC input voltage: 100V to 240V AC
  • AC input frequency: 50 to 60Hz
  • DC output voltage: 12V DC, 3A
Power measurements with WD Red drive configurationslink
TemperatureOperating temperature: 5° C to 35° C ( 41° F to 95° F) Non-op temperature: -20° C to 65° C (-4° F to 149° F)
Available capacities0 TB, 4 TB, 6 TB, 8 TB
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From Hardware BBQ:

But for those who need more, they would look for other options. For certain users, they will need higher write speed along with the ability to have larger storage. There’s also no physical power button. Providing a ‘Backup to USB 3.0′ button like the N2310 will also be nice. Note that My Passport Wireless did provide a separate button for power and wireless. It is needed. Though WD My Cloud EX2 does have a certain power saving option where it spins down the drive after a pre-set time when in idle, providing Hibernate option would have provided more Power Saving feature. It’s also another discussion that waking up from Hibernation mode would take time, depending on the drive and the NAS unit itself. It’s a win-win, depending on the type of user(s) and their requirements.

From Anandtech:

The Western Digital My Cloud EX2 is a 2-bay NAS, and most users are going to use it in a RAID-1 configuration. Hence, we performed all our expansion / rebuild testing as well as power consumption evaluation with the unit configured in RAID-1. The disks used for benchmarking (Western Digital WD4000FYYZ) were also used in this section. The table below presents the average power consumption of the unit as well as time taken for various RAID-related activities.

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