G.Skill Mac Series 4GB ( 4GB x 1 Kit ) 1600MHz DDR3 Laptop RAM Mac ( FA-1600C11S-4GSQ )

Ripjaws S5 is a performance DDR5 DRAM memory series made with hand-screened memory ICs that passed G.SKILL rigorous validation tests. Each Ripjaws S5 memory kit strikes an ideal balance between performance, compatibility, and stability and is available in matte black or matte white aluminum heatspreaders.