Phaser adapter
The phaser adapter was an anti-Borg modification chip added to phasers used by Starfleet in 2367. ()

In 2366, it was discovered that Borg systems were vulnerable to phaser blasts on a resonance frequency spread in the high narrow band. The Borg adapted to compensate for this weakness after Captain Jean-Luc Picard was assimilated as the Locutus. () 

In 2367, based on a suggestion from Wesley Crusher, a chip known as the phaser adapter was designed. It would automatically re-tune phasers to a random setting after each discharge. Using the adapter, phasers were set on a rotating modulation, to allow at most twelve shots to penetrate Borg shielding before they adapted. (; ; )

A similar technology was invented in 2375 by Species 10026. The Borg adapted by triaxilating their deflector shield geometry to absorb the energy of the modulating phaser pulses. () 

Computer technology
Weapon components