  The bottom MSATA1 white connector was used with optional mSATA drives with capacity of 32GB to 512GB.  [URL] [URL]   Below are the Dell part numbers  for the 512GB mSATA Y012F Samsung PM8717KDNC Samsung SM841295GT Samsung SM841N099H4 Liteon L9MF2T2Y Liteon V2MVGXRN Hynix SC300M196W Micron M550    
XPS 8700, possible to replace 32GB SSD with 64GB?
XPS 8700, possible to replace 32GB SSD with 64GB?