Compare with Electronic Brick system, Grove uses only 1 type of cable, (Electronic Brick system uses 4), this is a great improve, it saved us a lot time and cost. So if you are grove user, just buy this universal cable for Grove. It is compatible with all modules included in Grove system. 5 cables included in this pack. https://elecena.pl/product/3972596/grove-przewody-4-pin-5-sztuk 2013-03-18 https://elecena.pl/product/3972596/grove-przewody-4-pin-5-sztuk 2015-09-08