Micron: The brand of the memory module.
8GB: The capacity of the memory module, 8 Gigabytes.
PC3L: Indicates the type of memory, which is DDR3L (Low Voltage DDR3).
12800: Refers to the bus speed, which is PC3-12800 (equivalent to DDR3L-1600 MHz).
S: Indicates that it's a SODIMM, a type of memory module used in laptops.
2Rx8: Indicates that it has two memory ranks, with 8 memory chips per rank. Dual rank memory often offers improved performance and can be beneficial in certain situations.
11-11-FP: Specifies the CAS latency (CL11), the time it takes for the memory to access a data row, and the flat profile (FP).
DDR3L: Low-voltage DDR3 memory, typically using 1.35V.