je OK, disk je univerzalny pre M aj B dosky. Doska moze mat len jeden key (podla toho co je zac)deska má M, disk M+B
Inac u M.2 su dolezite aj rozmery http://en.wikipedia.org/wiki/M.2 ale moc prakticky sa s tym nestretavam tak neviem zhlavy jake rozmery sa kde pouzivaju, ale daj pozor aby si tam mal dost miesta (a pozor aj na double side na spodku nemusis mat miesto)
Various types of M.2 devices are denoted with WWLL-HH-K-K or WWLL-HH-K codes, where WW and LL specify the module width and length, respectively, in millimeters. Part HH specifies, in an encoded form, whether a module is single- or double-sided, and the maximum allowed thickness of mounted components; possible values are listed in the right table above. Module keying is specified by the K-K part, in an encoded form by using key IDs from the left table above; it can also be specified as K only, if a module has only one key.[2][8]