Max is 32GB. See the Crucial list, linked below.  We suggest Crucial as its guaranteed to work in a Dell.  Other brands are iffy as Dell has a history of memory compatibility with non-Dell OEM memory.  Also consider all one type memory as mixing brands/types many times does not work. [URL]  
Dear all, I have 7010 SFF i7 with 16GB ram installed. I am wondering whether 32GB ram can be installed on this model. BTW, I forgot what type of ram does this computer have. Is DDR3 1600 MHz (PC3 12800) Desktop Memory 1.5V?
How much RAM can 7010 SFF take?