Features： 1、Practical Use: Supports for intel and for AMD motherboards with DDR5 interface, and no external power supply required. 2、Easier Repair: Applied to repair motherboard failures such as no boot, no display, or no memory reading, very useful. 3、Has LED Light: The LED lights are used to indicate the open and short circuit of the address lines and the data lines. 4、Working Tips: Due to different motherboard designs, some lights may not light up. Can use the same motherboard to diagnose faults. 5、Easy to Install: Powered by 1pc CR2032 button battery, the lightweight and compact desktop mainboard test card is easy to install. Specification： Item Type: DDR5 Desktop Mainboard Test Card Battery: 1 x button battery CR2032 (delivered without battery) Adaptation: The DDR5 tester supports all motherboards with DDR5 interfaces from for INTEL and for AMD, and uses LED to indicate the open circuit and short circuit of the data line and address line. Application: It is used to repair motherboard failures such as no boot, no display, and no memory reading. An essential tool for repairing computer motherboards.  Memory Type: UDIMM Package List： 1 x DDR5 Desktop Mainboard Test Card