This product is either discontinued or we cannot get that from suppliers.
ERGOTRON 97-998 SV10 Laptop Bracket Conversion Kit, For screen up to 17", Powder-coated, Steel, Compatible with StyleView Tablet Cart, SV10 (SV10-1400-0), Includes laptop holder bracket, security screws, driver tool, WHITE
Convert the SV10 Tablet Cart to hold a laptop. The bracket holds a laptop in place while allowing tilt of the screen and never obstructing sight lines.