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WH81177C00021 is a QSFP-DD Connector only—no cage included.It uses a 94V-0 thermoplastic housing, copper alloy contacts and copper alloy solder washers.
Connector Gold Plated: 0.76 µm (about 30 µin) on the mating end.Solder tails carry 2.54 µm matte tin over an all-over nickel underplate, and the solder washers are finished in nickel silver.
Installation Type is Solder, on a board at least 1.6 mm thick.The recommended footprint has 76 pads (0.35 mm × 1.60 mm) and two ø1.55 mm locating holes, with a ±0.05 mm layout tolerance.