Bus Cable, Bus System USB, Conductor Color Code Black, Green, Red, White, Conductor Grouping (1) Pair 24 AWG/(2) 20 AWG, Conductor Material Copper, Impedance 90 ohm, Includes Ground No, Jacket Color Red, Jacket Material TPR, Length Order by the Foot, Maximum Acceleration 328.1 m/sq sec, Maximum Operating Temperature 158 Degrees F, Maximum Velocity – Supported 20 fps, Maximum Velocity – Unsupported 33 fps, Minimum Bend Radius Factor – E-Chain 12.5 x OD, Minimum Bend Radius Factor – Fixed 5 x OD