unmanaged var as member of managed class c++

I'm novice in .net c++ and trying to create class looking like:

public ref class Klient
{
public:
    Klient(){}
    // zmienne
    static DWORD klienty[41][2];
    static int i = 1;
    static DWORD* pid;
    static HANDLE* handle;

    //funkcje
};

but MSV says that:

error C4368: cannot define 'klienty' as a member of managed 'Klient': mixed types are not supported

What's wrong with this code?