That's exactly what I thought, approx. 1TB. not that I can't add, (lol) its just that I never heard anybody using a SSD entirely alone and also was not sure if its figured differently as to the amount of storage as opposed to a regular hard drive.
Right now I have a regular 1TB hard drive with 877GB Free Space and 53.9 Used Space. And so far I only plan to store pictures at the most part. I have Adobe Photoshop Elements 10 and I love to fix old pics and along that line.
I don't think I'll be using anything more than 512GB because I had this old HP with only a 400GB hard drive and it was plenty of space, back then.