[sgent]

There are three methods to do so:

1) Write a physical check (2-10 days from deposit, usually 2) 2) Use ACH (a virtual check) (2-10 days, usually 2) 3) Fedwire which costs $10-$15 to both the sender and receiver (15 minutes).

[zrail]

There are some banks that give free Fedwire transfers, often just to higher account tiers. Fidelity Investments gives free Fedwire to everyone, though.

[rubyskills]

Zelle exists and you can scan a check that was written to you (check 21)