Which one should I buy out of these 3
https://www.amazon.in/gp/aw/d/B01N0UMPCR/ref=mp_s_a_1_3?ie=UTF8&qid=1509412798&sr=8-3&pi=AC_SX118_SY170_FMwebp_QL65&keywords=mechanical+keyboard&dpPl=1&dpID=41jvarc%2BhGL&ref=plSrch
https://www.amazon.in/gp/aw/d/B01N7H99VM/ref=mp_s_a_1_6?ie=UTF8&qid=1509412798&sr=8-6&pi=AC_SX118_SY170_FMwebp_QL65&keywords=mechanical+keyboard&dpPl=1&dpID=51zXWme-AwL&ref=plSrch
https://www.amazon.in/gp/aw/d/B0764KKP82/ref=mp_s_a_1_1?ie=UTF8&qid=1509412798&sr=8-1-spons&pi=AC_SX118_SY170_FMwebp_QL65&keywords=mechanical+keyboard&psc=1&smid=A3RI37V5FOEUNK
https://www.amazon.in/gp/aw/d/B01N0UMPCR/ref=mp_s_a_1_3?ie=UTF8&qid=1509412798&sr=8-3&pi=AC_SX118_SY170_FMwebp_QL65&keywords=mechanical+keyboard&dpPl=1&dpID=41jvarc%2BhGL&ref=plSrch
https://www.amazon.in/gp/aw/d/B01N7H99VM/ref=mp_s_a_1_6?ie=UTF8&qid=1509412798&sr=8-6&pi=AC_SX118_SY170_FMwebp_QL65&keywords=mechanical+keyboard&dpPl=1&dpID=51zXWme-AwL&ref=plSrch
https://www.amazon.in/gp/aw/d/B0764KKP82/ref=mp_s_a_1_1?ie=UTF8&qid=1509412798&sr=8-1-spons&pi=AC_SX118_SY170_FMwebp_QL65&keywords=mechanical+keyboard&psc=1&smid=A3RI37V5FOEUNK