Alienware 17 M17x R5 Extra Hard Drive SATA Slot With 750GB 64GB Caching 256GB mSATA Laptop

I discovered that my Alienware 17 has an extra hard drive slot. I learned that the Alienware 17 has 3 drive ports – 1 mSATA and 2 SATA 2.5″ ports. I don’t know if …