Amazon.com: Laptop 2nd HDD SSD Caddy SATA3 Second Solid State Drive Enclosure for Dell Precision M4800 M6600 M6700 M4600 M6400 M6500 M4700 M4500 M4400 Mobile Workstation, CD DVD BD Optical Bay Replacement :
2.5" 9.5mm SATA 2nd HDD SSD HARD DRIVE Caddy Adapter for DELL Latitude E6400 E6500 E6410 E6510; DELL Precision M2400 M4400 M4500 - Newegg.com