The Silca Unocode 399 Plus Sorter set:

This set substitutes the tray supplied with the automatic feeder and allows the keys that have just been cut to be orderly arranged in a row. It can accommodate over 100 keys with an average thickness of 2,5 mm. It is also known as the ‘FIFO’ sorter as it works in ‘First In, First Out’ mode.

The sorter can hold up to 100 keys, and stops automatically once it’s full. You can remove keys from the sorter as you go, or at the end of a job run.