Xapo, a Bitcoin wallet startup, has raised $20 million in a Series A1 round of financing, bringing its total in financing raised to $40 million. Greylock Partners and Index Ventures led the round, and were joined by Emergence Capital Partners, among others. The company offers secure and fully insured Bitcoin storage, and will launch a debit card program so accounts can be used anywhere. Xapo's other round of financing also totaled $20 million and was led by Benchmark Capital. Reid Hoffman of Greylock and Mike Volpi of Index have joined Xapo's Board.