Cartridges are the "gear" or "equipment" in Neverness to Everness. These are equipped to your character to activate bonus effects by slotting in the matching Modules and provide base stats as well.
NTE Neverness to Everness Cartridges

Crimson: Twin Butterflies (S)
2-Piece: Epic (2): Incantation DMG +10%.
4-Piece: Legendary (4): Increases wearer's ATK by 6% when a nearby enemy takes Incantation DMG from the Team, up to 6 stacks. Each stack lasts 10s. Effect remains active when the character is off-field.

Devil's Blood: Curse (S)
2-Piece: Epic (2): Psyche DMG +10%.
4-Piece: Legendary (4): Increases wearer's DMG by 18%. The bonus becomes 36% against units affected by Nova or Stain.

Diabolos (S)
2-Piece: Epic (2): Chaos DMG +10%.
4-Piece: Legendary (4): Ignores 12% of enemies' Chaos RES. Ignores 24% of enemies' Chaos RES for 20s after the wearer participates in Nova or Scorch reactions.

Fireflies and the Forest (S)
2-Piece: Epic (2): Anima DMG +10%.
4-Piece: Legendary (4): Increases wearer's CRIT DMG by 8% when a nearby enemy takes Anima DMG from the Team, up to 7 stacks. Each stack lasts 10s. Effect remains active when the character is off-field.

Kingdom's Guard (S)
2-Piece: Epic (2): DEF +15%.
4-Piece: Legendary (4): Increases wearer's shields by 20%.

Lost Radiance (S)

Quiet Manor (S)
2-Piece: Epic (2): Mental DMG +10%.
4-Piece: Legendary (4): Grants wearer a 12% Mental DMG Bonus per Basic Attack, up to 3 stacks. Each stack lasts 6s.

Shadow Creed (S)
2-Piece: Epic (2): ATK +10%.
4-Piece: Legendary (4): Increases wearer's ATK by 25% for 20s after casting a Skill.

Speedy Hedgehog (S)
2-Piece: Epic (2): Charge Efficiency +12%.
4-Piece: Legendary (4): Increases all allies' ATK by 15% for 20s after the wearer casts Ultimate. Effect does not stack.

Street Boxer (S)
2-Piece: Epic (2): Lakshana DMG +10%.
4-Piece: Legendary (4): Increases Crit Chance by 14%. Team triggering Remora or Stain increases the bonus to 14% for 20s.

Thea's Night Tavern (S)
2-Piece: Epic (2): HP +10%.
4-Piece: Legendary (4): Increases wearer's Healing Bonus by 20%.

Tiny Big Adventure (S)
2-Piece: Epic (2): HP +10%.
4-Piece: Legendary (4): Increases wearer's Max HP by 4% when taking damage, up to 10 stacks. Each stack lasts 10s. Casting Ultimate instantly grants 10 stacks.