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A component is socketed into an item and carries its own affixes, drawn from the four listed on its card. It rolls 1 affix below item level 20, 1 or 2 from level 20, and always 2 from level 40 — so the same component is worth rerolling at a higher level.
Ruby
Gemstone
1×1
Can be socketed into Rings, Amulets, Weapons
+1 to 20% fire resistance
+1 to 10 fire damage
+1 to 12% fire damage
+1 to 12% penetrate fire resistance
Sapphire
Gemstone
1×1
Can be socketed into Rings, Amulets, Weapons
+1 to 20% cold resistance
+1 to 10 cold damage
+1 to 12% cold damage
+1 to 12% penetrate cold resistance
Emerald
Gemstone
1×1
Can be socketed into Rings, Amulets, Weapons
+1 to 20% poison resistance
+1 to 10 poison damage
+1 to 12% poison damage
+1 to 12% penetrate poison resistance
Diamond
Gemstone
1×1
Can be socketed into Rings, Amulets, Weapons
+1 to 30% increase critical hit damage
+1 to 5% all resistances
+1 to 10 physical damage
+1 to 12% physical damage
Topaz
Gemstone
1×1
Can be socketed into Rings, Amulets, Weapons
+1 to 20% lightning resistance
+1 to 10 lightning damage
+1 to 12% lightning damage
+1 to 12% penetrate lightning resistance
Obsidian
Gemstone
1×1
Can be socketed into Rings, Amulets, Weapons
+1 to 20% chance to block
+1 to 12% physical resistance
+1 to 20% magic resistance
25% chance: 30 to 100 by 10 knockback for 0.3 seconds
Amethyst
Gemstone
1×1
Can be socketed into Rings, Amulets, Weapons
+1 to 10 intelligence
+1 to 10 magic damage
+1 to 12% magic damage
+1 to 12% penetrate magic resistance
Onyx
Gemstone
1×1
Can be socketed into Rings, Amulets, Weapons
+1 to 20% acid resistance
+1 to 10 acid damage
+1 to 12% acid damage
+1 to 12% penetrate acid resistance
Dragon Scale
Creature Essence
1×1
Can be socketed into Armors, Helmets, Amulets
+1 to 40 life
+0.1 to 0.3% max life per second
+1 to 12% physical resistance
+1 to 20% fire resistance
Kraken Eye
Creature Essence
1×1
Can be socketed into Armors, Helmets, Amulets
+1 to 10 intelligence
+1 to 40 mana
+0.1 to 0.3% max mana per second
+1 to 20% cold resistance
Phoenix Feather
Creature Essence
1×1
Can be socketed into Armors, Helmets, Amulets
+0.1 to 0.3% max life per second
+1 to 10% chance to avoid lethal blows
+1 to 10 fire damage
+1 to 12% fire damage
Basilisk Fang
Creature Essence
1×1
Can be socketed into Armors, Helmets, Amulets
+1 to 20% poison resistance
+1 to 10 poison damage
+1 to 25% increase stun duration
20% chance: Stuns for 0.3 to 0.8 by 0.1 seconds
Manticore Spine
Creature Essence
1×1
Can be socketed into Armors, Helmets, Amulets
+1 to 10 physical damage
+1 to 10 poison damage
+1 to 25% faster poison damage
1 to 45 poison damage over 2 to 5 by 0.3 seconds
Griffon Talon
Creature Essence
1×1
Can be socketed into Armors, Helmets, Amulets
+1 to 10 dexterity
+1 to 30% accuracy
+1 to 10 lightning damage
+1 to 12% range weapon damage
Behemoth Heart
Creature Essence
1×1
Can be socketed into Armors, Helmets, Amulets
+1 to 10 strength
+1 to 40 life
+1 to 25% faster healing
+1 to 12% physical resistance
Flame Crystal
Elemental Crystal
1×1
Can be socketed into Weapons, Shields
+1 to 10 fire damage
+1 to 12% penetrate fire resistance
Convert +1 to 15% physical damage to fire damage
1 to 45 burning damage over 2 to 4 by 0.2 seconds
Frost Crystal
Elemental Crystal
1×1
Can be socketed into Weapons, Shields
+1 to 10 cold damage
+1 to 12% penetrate cold resistance
Convert +1 to 15% physical damage to cold damage
25% chance: 20% to 60% by 10% freeze for 0.8 to 2.5 by 0.1 seconds
Storm Crystal
Elemental Crystal
1×1
Can be socketed into Weapons, Shields
+1 to 10 lightning damage
+1 to 12% penetrate lightning resistance
Convert +1 to 15% physical damage to light damage
20% chance: Stuns for 0.3 to 0.8 by 0.1 seconds
Earth Crystal
Elemental Crystal
1×1
Can be socketed into Weapons, Shields
+1 to 10 strength
+1 to 12% physical resistance
+1 to 10 physical damage
25% chance: 30 to 100 by 10 knockback for 0.3 seconds
Void Crystal
Elemental Crystal
1×1
Can be socketed into Weapons, Shields
+1 to 40 mana
+1 to 10 magic damage
+1 to 12% penetrate magic resistance
Convert +1 to 15% physical damage to magic damage
Precision Gears
Clockwork Component
1×1
Can be socketed into Weapons, Helmets
+1 to 10% attack speed
+1 to 30% accuracy
+1 to 30% increase critical hit damage
+1 to 20% increase critical hit chance
Steam Valve
Clockwork Component
1×1
Can be socketed into Weapons, Helmets
+1 to 10% movement speed
+1 to 4% reduced cooldown duration
+1 to 20% faster recovery
+1 to 20% faster evasion
Arcane Capacitor
Clockwork Component
1×1
Can be socketed into Weapons, Helmets
+1 to 10% faster cast speed
+1 to 40 mana
+0.1 to 0.3% max mana per second
--30 to -5% mana cost decrease
Mechanical Heart
Clockwork Component
1×1
Can be socketed into Weapons, Helmets
+1 to 40 life
+0.1 to 0.3% max life per second
+1 to 25% faster healing
+1 to 10% chance to avoid lethal blows
Automated Loader
Clockwork Component
1×1
Can be socketed into Weapons, Helmets
+1 to 10% attack speed
+1 to 20% projectile speed
+1 to 25% chance to pierce
+1 to 12% range weapon damage
Philosophers Stone
Alchemical Reagent
1×1
Can be socketed into Weapons, Shields
Convert +1 to 15% physical damage to fire damage
Convert +1 to 15% physical damage to cold damage
Convert +1 to 15% physical damage to light damage
+1 to 20% item quality
Quicksilver
Alchemical Reagent
1×1
Can be socketed into Weapons, Shields
+1 to 10% movement speed
+1 to 5% reduced cooldown duration for mobility skills
+1 to 20% faster recovery
+1 to 20% faster evasion
Vitriol
Alchemical Reagent
1×1
Can be socketed into Weapons, Shields
+1 to 10 acid damage
+1 to 12% acid damage
+1 to 25% increase burn duration
+1 to 12% penetrate acid resistance
Universal Solvent
Alchemical Reagent
1×1
Can be socketed into Weapons, Shields
+1 to 12% acid damage
Convert +1 to 15% fire damage to acid damage
Convert +1 to 15% cold damage to acid damage
Convert +1 to 15% light damage to acid damage
Alkahest
Alchemical Reagent
1×1
Can be socketed into Weapons, Shields
+0.1 to 0.3% max life per second
+0.1 to 0.3% max mana per second
+1 to 5% all resistances
+1 to 8% elemental resistances
Orichalcum
Mystical Alloy
1×1
Can be socketed into Armors, Weapons, Shields
+1 to 10 strength
+1 to 40 life
+1 to 12% physical resistance
+1 to 10 physical damage
Moonsilver
Mystical Alloy
1×1
Can be socketed into Armors, Weapons, Shields
+1 to 10 intelligence
+1 to 10 lightning damage
+1 to 10 magic damage
+1 to 12% magic damage
Living Steel
Mystical Alloy
1×1
Can be socketed into Armors, Weapons, Shields
+1 to 40 life
+0.1 to 0.3% max life per second
+1 to 20% chance to block
+1 to 12% physical resistance
Sunforged Gold
Mystical Alloy
1×1
Can be socketed into Armors, Weapons, Shields
+1 to 20% fire resistance
+1 to 10 fire damage
+1 to 10 light radius
+1 to 30% gold find
Thunderiron
Mystical Alloy
1×1
Can be socketed into Armors, Weapons, Shields
+1 to 20% lightning resistance
+1 to 10 lightning damage
+1 to 12% penetrate lightning resistance
10% to 30% by 5% chance to cast Lightning Orb level 1 to 5
Fireball Essence
Spell Fragment
1×1
Can be socketed into Amulets, Rings, Helmets
+1 to 10 fire damage
+1 to 12% fire damage
+1 to 25% increase burn duration
10% to 30% by 5% chance to cast Fireball level 1 to 5
Time Dilation
Spell Fragment
1×1
Can be socketed into Amulets, Rings, Helmets
+1 to 4% reduced cooldown duration
+1 to 25% reduced cold duration
+1 to 25% increase freeze duration
25% chance: 20% to 60% by 10% freeze for 0.8 to 2.5 by 0.1 seconds
Teleportation Rune
Spell Fragment
1×1
Can be socketed into Amulets, Rings, Helmets
+1 to 10% movement speed
+1 to 5% reduced cooldown duration for mobility skills
+1 to 40 mana
--30 to -5% mana cost decrease
Arcane Shield
Spell Fragment
1×1
Can be socketed into Amulets, Rings, Helmets
+1 to 20% chance to block
+1 to 20% faster block
+1 to 20% magic resistance
+1 to 10 magic damage
Lightning Cascade
Spell Fragment
1×1
Can be socketed into Amulets, Rings, Helmets
+1 to 10 lightning damage
+1 to 12% lightning damage
+1 to 12% penetrate lightning resistance
20% chance: Stuns for 0.3 to 0.8 by 0.1 seconds
Rifled Barrel
Firearm Component
1×1
Can be socketed into Weapons, Shields
+1 to 25% chance to pierce
+1 to 30% accuracy
+1 to 10 projectile damage
+1 to 12% range weapon damage
Explosive Powder
Firearm Component
1×1
Can be socketed into Weapons, Shields
+1 to 8% chance to ricochet
+1 to 10 fire damage
25% chance: 30 to 100 by 10 knockback for 0.3 seconds
1 to 45 burning damage over 2 to 4 by 0.2 seconds
Silver Bullets
Firearm Component
1×1
Can be socketed into Weapons, Shields
+1 to 10 projectile damage
+1 to 30% weapon damage against ghosts
+1 to 30% weapon damage against demons
+1 to 30% weapon damage against undeads
Percussion Cap
Firearm Component
1×1
Can be socketed into Weapons, Shields
+1 to 10 dexterity
+1 to 10% attack speed
+1 to 20% projectile speed
+1 to 4% reduced cooldown duration
Dragon Cartridge
Firearm Component
1×1
Can be socketed into Weapons, Shields
+1 to 10 fire damage
+1 to 12% penetrate fire resistance
1 to 45 burning damage over 2 to 4 by 0.2 seconds
20% chance: Stuns for 0.3 to 0.8 by 0.1 seconds
Blood Diamond
Forbidden Relic
1×1
Can be socketed into Amulets, Weapons, Helmets
+1 to 40 life
+0.1 to 0.5% life leech
+1 to 10 physical damage
+1 to 12% physical damage
Abyssal Shard
Forbidden Relic
1×1
Can be socketed into Amulets, Weapons, Helmets
+1 to 10 magic damage
+1 to 12% magic damage
+1 to 25% increase burn duration
+1 to 12% penetrate magic resistance
Soul Cage
Forbidden Relic
1×1
Can be socketed into Amulets, Weapons, Helmets
+1 to 30% increase chance to trigger spells
+1 to 40 mana
+0.3 to 1.5% mana leech
+1 to 30% increase curse duration
Chaos Eye
Forbidden Relic
1×1
Can be socketed into Amulets, Weapons, Helmets
+1 to 30% accuracy
+1 to 30% increase critical hit damage
+1 to 20% increase critical hit chance
20% to 50% by 10% chance to cast Nether Bolt level 2 to 6
Forgotten Name
Forbidden Relic
1×1
Can be socketed into Amulets, Weapons, Helmets
+1 to 15% damage goes to mana
+1 to 5% all resistances
+1 to 12% spell damage
+1 to 12% physical damage
Jade Tiger
Exotic Import
1×1
Can be socketed into Rings, Amulets, Helmets
+1 to 10 dexterity
+1 to 10% chance to evade
+1 to 20% faster evasion
+1 to 10 physical damage
Djinn Lamp
Exotic Import
1×1
Can be socketed into Rings, Amulets, Helmets
+1 to 40 mana
+1 to 10 fire damage
+1 to 30% gold find
5% to 15% by 5% chance to cast Summon Elemental level 1 to 5
Nordic Runestone
Exotic Import
1×1
Can be socketed into Rings, Amulets, Helmets
+1 to 10 strength
+1 to 20% cold resistance
+1 to 10 cold damage
25% chance: 20% to 60% by 10% freeze for 0.8 to 2.5 by 0.1 seconds
Volcano Ash
Exotic Import
1×1
Can be socketed into Rings, Amulets, Helmets
+1 to 10 fire damage
+1 to 25% increase burn duration
1 to 45 burning damage over 2 to 4 by 0.2 seconds
25% chance: Blinds for 0.4 to 1.2 by 0.1 seconds
Jungle Mask
Exotic Import
1×1
Can be socketed into Rings, Amulets, Helmets
+1 to 20% poison resistance
+1 to 10 poison damage
+1 to 25% faster poison damage
1 to 45 poison damage over 2 to 5 by 0.3 seconds
Mana Crystal
Arcane Catalyst
1×1
Can be socketed into Amulets, Rings, Helmets
+1 to 4% reduced cooldown duration
+1 to 40 mana
+0.1 to 0.3% max mana per second
+1 to 10 magic damage
Spirit Lens
Arcane Catalyst
1×1
Can be socketed into Amulets, Rings, Helmets
+1 to 10% faster cast speed
+1 to 30% increase chance to trigger spells
+1 to 12% magic damage
+1 to 12% penetrate magic resistance
Astral Dust
Arcane Catalyst
1×1
Can be socketed into Amulets, Rings, Helmets
+1 to 10 intelligence
+1 to 25% reduced knockback strength
+1 to 10 magic damage
15% to 40% by 5% chance to cast Astral Burst level 1 to 5
Enchanter Chalk
Arcane Catalyst
1×1
Can be socketed into Amulets, Rings, Helmets
+1 to 30% increase chance to trigger spells
+1 to 6 to trigger spell level
+1 to 20% magic resistance
Convert +1 to 15% physical damage to magic damage
Soul Mirror
Arcane Catalyst
1×1
Can be socketed into Amulets, Rings, Helmets
+1 to 10 intelligence
+0.3 to 1.5% mana leech
+1 to 12% penetrate magic resistance
5% to 15% by 5% chance to cast Mirror Image level 1 to 5
Warding Sigil
Guardian Seal
1×1
Can be socketed into Shields, Armors, Helmets
+1 to 25% reduced blind duration
+1 to 5% all resistances
+1 to 8% elemental resistances
+1 to 12% physical resistance
Deflection Matrix
Guardian Seal
1×1
Can be socketed into Shields, Armors, Helmets
+1 to 20% chance to block
+1 to 20% faster block
+1 to 15% projectile resistance
15% to 40% by 5% chance to cast Repulsion Field level 1 to 5
Iron Will
Guardian Seal
1×1
Can be socketed into Shields, Armors, Helmets
+1 to 10 strength
+1 to 25% reduced cold duration
+1 to 25% reduced stun duration
+1 to 25% reduced knockback strength
Vitality Mark
Guardian Seal
1×1
Can be socketed into Shields, Armors, Helmets
+1 to 40 life
+0.1 to 0.3% max life per second
+1 to 25% faster healing
+1 to 10% chance to avoid lethal blows
Immaculate Shell
Guardian Seal
1×1
Can be socketed into Shields, Armors, Helmets
+1 to 20% faster recovery
+1 to 8% elemental resistances
+1 to 12% physical resistance
15% to 40% by 5% chance to cast Elemental Shield level 1 to 5
Oak Heart
Natural Element
1×1
Can be socketed into Armors, Shields
+1 to 10 intelligence
+1 to 40 life
+0.1 to 0.3% max life per second
+1 to 12% physical resistance
Glacier Shard
Natural Element
1×1
Can be socketed into Armors, Shields
+1 to 20% cold resistance
+1 to 10 cold damage
+1 to 25% increase freeze duration
25% chance: 20% to 60% by 10% freeze for 0.8 to 2.5 by 0.1 seconds
Volcanic Cinder
Natural Element
1×1
Can be socketed into Armors, Shields
+1 to 10 fire damage
+1 to 25% increase burn duration
+1 to 10 light radius
1 to 45 burning damage over 2 to 4 by 0.2 seconds
Living Bramble
Natural Element
1×1
Can be socketed into Armors, Shields
+1 to 20% poison resistance
+1 to 10 physical damage
+1 to 10 poison damage
25% chance: 20% to 60% by 10% slow for 1 to 3 by 0.2 seconds
Storm Amber
Natural Element
1×1
Can be socketed into Armors, Shields
+1 to 20% lightning resistance
+1 to 10 lightning damage
+1 to 12% penetrate lightning resistance
10% to 30% by 5% chance to cast Static Discharge level 1 to 5
Necromantic Totem
Summoning Focuse
1×1
Can be socketed into Weapons, Shields, Helmets
+1 to 30% weapon damage against undeads
+1 to 25% minion damage
+1 to 25% minion stats
5% to 15% by 5% chance to cast Raise Skeleton level 1 to 5
Familiar Bond
Summoning Focuse
1×1
Can be socketed into Weapons, Shields, Helmets
+1 to 10 intelligence
+0.1 to 0.3% max mana per second
+1 to 25% minion damage
+1 to 25% minion stats
Spirit Cage
Summoning Focuse
1×1
Can be socketed into Weapons, Shields, Helmets
+1 to 10 magic damage
+1 to 25% minion damage
+1 to 25% minion stats
5% to 15% by 5% chance to cast Summon Spirit level 1 to 5
Elemental Conduit
Summoning Focuse
1×1
Can be socketed into Weapons, Shields, Helmets
+1 to 8% elemental resistances
+1 to 25% minion damage
+1 to 25% minion stats
5% to 15% by 5% chance to cast Summon Elemental level 1 to 5
Animal Charm
Summoning Focuse
1×1
Can be socketed into Weapons, Shields, Helmets
+1 to 10 dexterity
+1 to 30% weapon damage against animals
+1 to 25% minion damage
+1 to 25% minion stats
Celestial Fragment
Planar Artifact
1×1
Can be socketed into Rings, Amulets, Weapons
+1 to 20% lightning resistance
+1 to 10 lightning damage
+1 to 30% weapon damage against angels
10% to 30% by 5% chance to cast Divine Judgment level 1 to 5
Infernal Brimstone
Planar Artifact
1×1
Can be socketed into Rings, Amulets, Weapons
+1 to 20% fire resistance
+1 to 10 fire damage
+1 to 30% weapon damage against demons
10% to 30% by 5% chance to cast Hellfire level 1 to 5
Ethereal Dust
Planar Artifact
1×1
Can be socketed into Rings, Amulets, Weapons
+1 to 20% magic resistance
+1 to 10 magic damage
+1 to 30% weapon damage against ghosts
20% chance: Stuns for 0.3 to 0.8 by 0.1 seconds
Shadow Weave
Planar Artifact
1×1
Can be socketed into Rings, Amulets, Weapons
+1 to 10 dexterity
+1 to 10% chance to evade
+1 to 10 physical damage
25% chance: Blinds for 0.4 to 1.2 by 0.1 seconds
Primal Amber
Planar Artifact
1×1
Can be socketed into Rings, Amulets, Weapons
+1 to 20% poison resistance
+1 to 10 poison damage
+1 to 30% weapon damage against animals
1 to 45 poison damage over 2 to 5 by 0.3 seconds
Analytical Lens
Enlightenment Tech
1×1
Can be socketed into Helmets, Amulets, Weapons
+1 to 30% accuracy
+1 to 20% increase critical hit chance
+1 to 12% range weapon damage
+1 to 10 light radius
Vacuum Chamber
Enlightenment Tech
1×1
Can be socketed into Helmets, Amulets, Weapons
+1 to 4% reduced cooldown duration
--30 to -5% mana cost decrease
+1 to 12% spell damage
+1 to 12% penetrate magic resistance
Galvanic Cell
Enlightenment Tech
1×1
Can be socketed into Helmets, Amulets, Weapons
+1 to 10% faster cast speed
+0.1 to 0.3% max mana per second
+1 to 10 lightning damage
20% chance: Stuns for 0.3 to 0.8 by 0.1 seconds
Precision Chronometer
Enlightenment Tech
1×1
Can be socketed into Helmets, Amulets, Weapons
+1 to 4% reduced cooldown duration
+1 to 20% faster recovery
+1 to 20% faster evasion
+1 to 20% faster block
Barometric Bellows
Enlightenment Tech
1×1
Can be socketed into Helmets, Amulets, Weapons
+1 to 10 strength
+1 to 10 physical damage
+1 to 25% increase knockback strength
25% chance: 30 to 100 by 10 knockback for 0.3 seconds