3M 3355/40 Cable Type: Flat (Ribbon) Conductor Plating: Tin Conductor Size Awg: 28 Jacket Color: Grey No. Of Conductors: 40 Pitch Spacing: 1.27mm Reel Length (imperial): 100ft Reel Length (metric): 30.48m Rohs Compliant: Yes Thickness: 0.035" Voltage Rating: 300V