Confusion over dimensions of Wroom-02 module

[helpme]

I downloaded 0C-ESP8266__ESP-WROOM-02_WiFi_Module_Datasheet__EN_v0.2.pdf from viewtopic.php?f=21&t=412&p=1545#p1545
The pdf says the dimensions are 18mm x 20mm x 3mm

When I tried looking to make a purchase on taobao, the dimensions are 11mm x 11mm.
http://item.taobao.com/item.htm?spm=a1z ... 3709138695

May I ask which one is correct? THank you.

[Espressif_Kelly]

Dear Sir,

About the dimensions of ESP_WROOM-02, please refer to the "0C-ESP8266__ESP-WROOM-02_WiFi_Module_Datasheet__EN_v0.2.pdf " for details.

The module with dimensions of 11mm x 11mm is our early module which is no longer in production.

Any more questions, please let us know.

Thanks.