How to make dropify for multiple attachment

I am using the Dropify jQuery plugin for attachment but I am unable to add multiple attachments at the same time. I am using it in ASP.Net MVC5. Here is my code

<input type="file" id="MemberImage" name="MemberImage" class="dropify" data-default-file="@Model.MemberImage" data-height="230" />

$('.dropify').dropify();