DDR3 1333MHZ=PC3-10600. You can check the SPD interface on CPU-Z. Free user support.
NEW Crucial 16GB Kit (2x8GB) DDR5 4800 MHz Laptop RAM Memory SODIMM Intel & AMD
Crucial 8GB Kit 2 x 4GB DDR3 1333 MHz PC3-10600 Laptop RAM Sodimm Memory 1.5V
TEAMGROUP Elite DDR4 16GB Kit (2 x 8GB) 2666MHz PC4-21300 CL19 Unbuffered Non-ECC 1.2V SODIMM 260-Pin Laptop Notebook PC Computer Memory Module Ram Upgrade - TED416G2666C19DC-S01-16GB Kit (2 x 8GB)
16gb kit 2 x 8gb DDR3 PC3-12800 RAM Lenovo Laptop T420 T430 T520 T530 W520 W530
Crucial DDR4 RAM 16GB Kit (2x8GB) 3200MHz SODIMM CL22, Laptop Computer Memory, Mini PC (or 2933MHz, 2666MHz) - CT2K8G4SFRA32A
Crucial DDR3L 16GB Kit 2x8GB 1600 MHz PC3L-12800 1.35V Laptop RAM Sodimm Memory
