eBay has the HP S700 500GB SATA III 3D NAND Internal SSD in $64.99 with free shipping.
Product Features:
- Internal Solid State Drive (SSD).
- 2.5″ Form Factor.
- 500GB Capacity.
- 3D NAND Memory Components.
- SATA III Interface.
- Up to 560 MBps Sequential.
- Up to 515 MBps Max Sequential Write.