FOR MOTHERBOARD TESTING: This memory detection card supports INTEL and AMD motherboards with a DDR5 interface and requires no external power supply. WITH LED INDICATORS: LEDs indicate open circuits and short circuits in data and address lines, making operation clear and convenient. MULTIPLE USES: An essential tool for repairing computer motherboards, detecting faults such as no boot, no display, no memory read, etc. APPLICABLE SCENES: Widely used for repairing motherboards that won't power on, and can be used to pinpoint faults on identical motherboards. EXCELLENT PERFORMANCE: This motherboard detection card is compact, easy to use, highly accurate, and has minimal interference, ensuring stable and reliable performance. Item Type: Laptop Memory Card Battery: 1 x CR2032 button battery (battery not included) Adaptation: Supports INTEL and AMD motherboards with DDR5 interface; uses LEDs to indicate open circuits and short circuits in data and address lines. Uses: Used to repair motherboard faults such as no boot, no display, and no memory read. It is an essential tool for repairing computer motherboards.