This battery comes in any of three ways. White in a color box, black in a color box, or white in a plain box.
There is absolutely no electrical or mechanical difference whatsoever between the black (4K) and white (Q500) battery. Both are the exact same item except for the casing color, intended to match the appearance of the aircraft. Therefore, feel confident that you may use the black one, white one, or “plain box” one, with no performance or electrical issues of any kind.