Incorporates a higher density contact pattern and lower mated height than Amphenol??s standard low mating force rectangular connectors. HDB3 connectors utilize the same durable and reliable B3 brush contact in a tighter .070?? X .060?? staggered grid pattern. Up to 160 brush contacts with data rates up to 6.250 Gb/s via 100 ohms matched impedance differential pairs. 100,000 mating cycles.