Welcome to our store! FOR MOTHERBOARD TESTING: This memory detection card supports INTEL and AMD motherboards with a DDR5 interface, no external power supply required. WITH LED LIGHTS: Uses LEDs to 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 motherboard faults such as no boot, no display, no memory reading, etc. APPLICABLE SCENES: Widely used for repairing motherboards that won't power on, and can be used to pinpoint faults on identical motherboards. GREAT PERFORMANCE: This motherboard detection card is compact in size, easy to use, with high accuracy and less interference, stable and reliable. 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 reading. It is an essential tool for repairing computer motherboards. 1 x Memory Card Satisfaction Guarantee: Customers are our top priority. If you find any problem with the product, please contact the seller immediately. We strive to provide satisfactory customer service.