- KHX1333C9D3UK2/4GX - 2GB x 2 | 1333 MHz | CL 9-9-9-27 | 1.25V | $154 - KHX1600C9D3LK2/4GX - 2GB x 2 | 1600 MHz | CL 9-9-9-27 | 1.35V | $158 - KHX1866C9D3LK2/4GX (XMP Profile 2) - 2GB x 2 | 1600 M ...