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I bought a solide slate drive A55 from Amazon.co.uk
https://www.amazon.fr/Silicon-Power-256GB-SSD-Performance-Interne/dp/B07KR2CX1F/ref=mp_s_a_1_2?__mk_fr_FR=%C3%85M%C3%85Z%C3%95%C3%91&qid=1550086558&sr=8-2&pi=AC_SX236_SY340_QL65&keywords=sp+ssd&dpPl=1&dpID=51D0eaOybdL&ref=plSrch