Web Part Configuration:

Title:
enter the optional web part title

Web Part:
AEBlogRollup

Configuration:
enter the below configuration options:

count=2 (defines the number of posts to be displayed)
more=16 (defines the number of words displayed per post)
readmore=16 (text to be displayed for the Details link)
postsperblog=5 (defines the number of posts per blog)
template=cards (chooses the "Cards" layout option)
site=url (optionally specify the site collection URL to be rolled up)
blogs=blogurl (specify one or more specific blogs to be included) 
category=category name (filter by blog category)
subsitesonly=1 (only roll up the current site and its subsites)
showdate=1 (display the post date)
showcategory (display the blog post category)
showphoto=1 (display the post author's photo)
showauthor=1 (display the post author's name)
showcomments=0 (suppress the number of comments)
showpresence=1 (suppress the presence indicators)
showblogname=1 (display the blog's name)
subsitesonly=1 (roll up the current site and its subsites only)
filter=Filter expression (optionally enter a property filter)
cache=60 (specify the cache duration in minutes)