Belkin Pro Series USB (Universal Serial Bus) Extension Cable 1.8m Overview The Pro Series USB (Universal Serial Bus) Extension Cable extends the length of your USB (Universal Serial Bus) device cable to your hub, PC, or Mac. Perfect for devices with short cables. Features Molded strain relief & PVC overmolding to ensure a lifetime of error-free data transmissions; Supports up to 127 devices on a daisy-chain configuration; Hot Pluggable; Flextec cable jacket is extremely flexible for use in tight areas; Gold plated copper contacts provide maximum conductivity & minimizes data loss; Foil & braid shield complies with fully rated cable specifications reducing EMI/FRI interference; Impedance matched twisted pair construction helps to minimize cross talk, ensuring high-speed, error-free transmission; Undermold shield helps to prevent radio frequency & electro-magnetic Interference (EMI/RFI). Hood shielding eliminates antennae excitation.