Supports PCIE 16X and 8X slots for testing various motherboard models, ideal for quick diagnosis by computer repair technicians. Features external 12V power input to ensuring stable operational and accurate , suitable for prolonged motherboard testing scenarios. Uses lights to identify issues like open or short circuits in south bridge pins, enabling efficient troubleshooting for technicians. Combines metal and materials for enhanced durability and , perfect for frequent use in professional repair environments. Package includes: 1Pc Card