Frank Szmulowicz, Ph. D. Apr 12, 2015:

Good research, Dariusz. "reject cassette" is another name, for sure. Since many are made in China, it is not clear how reliable are the names.

Darius Saczuk Apr 12, 2015:

Typically ATMS have a 1000 note cash cassette capacity: that's 1000 x $20 bills or $20,000. Even the 4000W has a 500 note of $10,000.  Clearly sufficient for most  for all but the highest volume sites.
Related to cash capacity is the capacity to hold rejected bills. Rejected bills are diverted to a tray, bin or cassette. A properly loaded and maintained cash dispenser will reject a small percentage of bills, diverting them to the reject bin, tray or cassette. If the cash quality or load is poor or the cash dispenser is dirty and requires maintenance, the reject rate can climb. A small reject capacity will put that ATM out of service sooner.