• Netherforce Chestplate
• Item Level 125Disenchants into:
  [Void Crystal]: 1-2
• Binds when picked up
  
• Plate
• Chest
• 1571 Armor
• +44 Strength
  +42 Stamina
• Red Socket
  Yellow Socket
  Blue Socket
• Socket Bonus: +4 Strength
• Requires Level 70
• Equip: Improves hit rating by 18.
  Equip: Improves critical strike rating by 30.
• 

Source

This item drops from Kael'thas Sunstrider in Magisters' Terrace on Heroic mode.

Patches and hotfixes

Patch 2.4.0 (25-Mar-2008): Added 

External links

• Battle.net (EU)
• Wowhead
• Thottbot
• WoWDB