SLC flash chips is most excellent flash chips with highest reading/writing speed based on highest cost, and TLC flash chips is lowest reading/writing speed with lowest cost, while MLC flash chips is in the middle of SLC and TLC.

    SLC- Single Layer Cell
    High performance
    Lower power consumption
    Faster write speeds
    100,000 program/erase cycles per cell
    Higher cost
    A good fit for industrial grade devices, embedded systems, critical applications.

    MLC- Multi Layer Cell
    Lower endurance limit than SLC
    10,000 program/erase cycles per cell
    Lower cost
    A good fit for consumer products. Not suggested for applications which require frequent update of data.

    TLC- Three Layer Cell
    Higher density
    Lower endurance limit than MLC and SLC
    TLC has slower read and write speeds than conventional MLC
    5,000 program/erase cycles per cell
    Best price point
    A good fit for low-end basic products.
    Not suggested for critical or important applications at this time which require frequent updating of data.