ex4100 vs. dl4100

So whats the major difference?

They both look to offer the same features. (although looks like one has an Arm and one has an Atom)

Do they both perform the same?  Not sure which to get.

Hi bobbovr6, welcome to the Community. You can check the information page for both devices to see the major differences. 

My Cloud DL4100

http://www.wdc.com/en/products/products.aspx?id=1450#Tab8

My Cloud EX4100

http://www.wdc.com/en/products/products.aspx?id=1460#Tab8

I examined the two sites.  I do not see any visual differences on the devices. The only specification that seems different is the interfaces (from those pages).  The processers are different.

EX=Expert Series, target market: Prosumers, Creative professionals

DL=Business Series, target market: Small Office, Home Office

EX4100: 3 x USB 3.0 (1 front, 2 rear), 2 x Gigabit Ethernet

DL4100: 2 x USB 3.0, 1 x USB 2.0, 2 x Gigabit Ethernet

Process Diffferences:

EX4100: Marvel® ARMADA® 1.6 GHz dual-core

DL4100: Intel® Atom™ C2338 1.7 GHz Dual-Core

While they both come with 2GB RAM, on a different site, it indicated that the DL series was exapandable to 6GB.

Hope this helps.

Ref: WD My Cloud site.

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