The service manual for the E5440 on the Dell website makes no mention of it. However I believe this laptop can take a mSATA drive. At the socket, there is a message that says "See Manual" or something like that. Only manual doesn't mention diddly.

So can someone confirm laptop is mSATA compatible? If so, what's the max size supported and can I boot OS off the mSATA? Finally, if someone can explain exactly whether this takes mSATA or M2 or whatever drives because it's confusing me a bit.

Thanks in advance.