Hi may i know what are the different in term of naming? MFI certified?

? REMAX® STEEL Lightning Cable
? REMAX® GOLD Lightning Cable
? REMAX® METALLIC Lightning Cable
? REMAX® ALIENZ Lightning Cable
? REMAX® BREATHE Lightning Cable
? REMAX® LASER Lightning Cable
? REMAX® CARBON Lightning Cable
? REMAX® RADIANCE Lightning Cable