Features: The M1690 DDR3/4/5 Memory Test Card efficiently diagnoses UDIMM/RDIMM faults including contact issue, PCB breaks, and data line resistor failures through instants LED statuses indicators for rapid troubleshooting. Featuring precisions engineered PCB construction and multicolor LED diagnostics, this tool visually detects abnormal data line circuits with bright/dim signals while verifying memory performances stability. for PC technicians, hardware engineers, and enthusiasts requiring professional memory diagnostics for desktop computers and server maintenance. streamlines memory repairs in workshops, data centers, or home setups by testing DDR3/4/5 modules via battery or USB C power within seconds. Optimize workflow with plug and play functionality – insert the card into memory slots to identify worn pins, short circuits, or PCB fractures without software installation. Specifications: Materials: PCB Size:152x190mm Package Includes: 1PC DDR3/4/5 Memory Tester 1PC Type C data cable 4Pcs PCB gasket note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.