Features [No need external power supply] The memory test card supports all motherboards with DDR5 interface, no external power supply is required, and it is easy to use. [With indicator] There are LED lights for testing on the breadboard, you can decide according to the brightness of the lights. [DDR5 memory] Compared with other memory, the DDR5 standard has higher performance and lower power consumption, so this test card is more practical. [Long life] Our memory test board is made of thin PCB, the surface is specially treated and has a long life. [Main Application] This test board can be used to repair motherboard failures such as no boot, no display and no memory read. It is an indispensable tool for repairing computer motherboards. Specification: Item Type: RAM Slot Test Card Material: PCB Battery: 1 x CR2032 button battery (excluded) Adaptation: The DDR5 tester supports all motherboards with DDR5 interface and uses LEDs to indicate open circuit and short circuit of data line and address line Uses: It is used to repair motherboard failures such as no boot, no display, and no memory read. It is an indispensable tool for repairing computer motherboards. List of packages: 1 x RAM Memory Slot Tester Board Note: 1. When the DDR5 tester is testing the motherboard, the motherboard should be plugged into the CPU, and the test light will be on, because the memory part signals are connected to the CPU.2. After several uses of the tester battery, the brightness of the tester dims. At this time, the battery voltage is too low, and the battery should be replaced in time.3. The different signals of this tester, due to different motherboard designs and chipsets from various motherboard manufacturers, some of the signals may be displayed differently. Please use the same motherboard to compare and judge.4. Desktop DDR5 currently has two types of interface on the market. When one side cannot be inserted into the memory slot for testing, please switch to the other side for testing. Package List 1 x RAM Memory Slot Tester Card