# Qty Unit Description Designators 1 3 Connector, Molex KK 254, female, 4 pins X1, X2, X3 2 2 m Wire, I2C, 0.25 mm², PK W1, W2 3 2 m Wire, I2C, 0.25 mm², TQ W1, W2 4 2 m Wire, I2C, 0.25 mm², VT W1, W2 5 2 m Wire, I2C, 0.25 mm², YE W1, W2