ANY KEY FOR AN ASUS X502, X540, X542, X553, X555, K55, F502 series, Inc :- X502C, X502CA, X540L, X555L, X555LA, X553M, X553MA, K55V, K55XI, K55VM, K55A, F556U. Keys NOT available (SOLD) on C keyboard are :- Esc, F4, F8, `¬, 0, Q, E, U, S, G, ~#, Left Shift, M, L eft Ctrl, Left Arrow, Up Arrow, Down Arrow, Right Arrow.
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