Electronic or Automatic drawers are designed to be connected to the receipt printer. When the transaction is complete the printer sends a signal to the drawer and it opens. Some new POS software accommodates a USB connection directly to the POS computer. Automatic drawers may be used manually by turning the key.)
Manual drawers have no electronics and cannot be upgraded to automatic. When unlocked simply push on the drawer face and they will open, they have stronger springs and mechanical parts than a automatic drawer.
Accessories include spare keys, locking lids, under counter mounts, replacement inserts.